Cardboard Engineering

Cardboard engineering, also known as corrugated cardboard engineering, is a concept that is gaining popularity in the world of manufacturing. This approach is based on the use of cardboard mock-ups, prototypes, and models to visualize, test, and improve manufacturing processes and product design.

We would like to provide an overview of cardboard engineering and its application in a manufacturing setting.

Cardboard engineering is a low-cost, fast, and efficient method for testing and refining manufacturing processes and product design. The approach is based on the use of cardboard prototypes and models to simulate the manufacturing process and identify potential challenges and limitations. This allows manufacturers to quickly test and refine their processes and products without incurring the costs and delays associated with traditional prototyping methods.

The use of cardboard engineering has several benefits in a manufacturing setting. Some of these benefits include:

1. Low cost: Cardboard engineering is a low-cost method for testing and refining manufacturing processes and product design. This makes it accessible to a wide range of manufacturers, regardless of size or budget.

2. Fast: Cardboard engineering allows manufacturers to quickly test and refine their processes and products, reducing the time required to bring new products to market.

3. Improved design: By using cardboard prototypes and models, manufacturers can quickly identify potential challenges and limitations in their product design and make improvements accordingly.

4. Improved efficiency: Cardboard engineering helps manufacturers to optimize their processes and products, leading to improved efficiency and reduced waste.

5. Increased collaboration: The use of cardboard prototypes and models promotes collaboration and communication between departments, improving the overall efficiency of the manufacturing process.

In order to implement cardboard engineering in a manufacturing setting, it is important to follow a structured approach. This may include the following steps:

1. Identify the problem: Identify the challenges and limitations in the manufacturing process or product design that need to be addressed.

2. Create a cardboard prototype: Create a cardboard prototype or model that simulates the manufacturing process or product design.

3. Test and refine: Test the cardboard prototype or model and refine the process or product design as needed.

4. Implement changes: Implement any changes identified during the testing and refinement process.

5. Continuous improvement: Continuously monitor the manufacturing process and make improvements as needed to optimize efficiency and reduce waste.

In a nutshell, cardboard engineering is a valuable tool for manufacturers looking to improve their processes and products. By using cardboard prototypes and models, manufacturers can quickly test and refine their processes and products, leading to improved efficiency, reduced waste, and increased collaboration. By following a structured approach and continuously monitoring their processes, manufacturers can ensure that they are always working to improve their operations and products

Line Balancing

Line balancing is a critical component of lean manufacturing and is a key tool for improving efficiency, reducing waste, and increasing productivity. The principle of line balancing is to ensure that every workstation on a production line is working at optimal capacity and that the overall line is balanced in terms of the workload and resources available.

We would like to provide an overview of the line balancing principle and its application in a manufacturing setting.

Line balancing is a process that involves analyzing the production line and determining the ideal workload for each workstation. This is done by breaking down the tasks involved in producing a product into individual steps, and then determining the time required to complete each step. Once this has been done, the steps are assigned to workstations, taking into account the workload and resources available.

The goal of line balancing is to ensure that each workstation is working at optimal capacity, with no workstation being overworked or underutilized. This results in a more efficient production line, with less waste and reduced lead times.

There are several benefits to line balancing in a manufacturing setting. Some of these benefits include:

1. Increased efficiency: Line balancing helps to ensure that each workstation is working at optimal capacity, which leads to increased efficiency and reduced waste.

2. Reduced lead times: By ensuring that each workstation is working efficiently, line balancing can help to reduce lead times and improve delivery times.

3. Improved quality: Line balancing helps to ensure that each workstation is working at the appropriate pace, which can help to improve quality and reduce the risk of defects.

4. Increased productivity: Line balancing helps to optimize the use of resources, which can lead to increased productivity and reduced costs.

5. Improved work environment: Line balancing helps to create a more balanced and less stressful work environment, which can improve employee morale and reduce turnover.

In order to implement line balancing in a manufacturing setting, it is important to follow a structured approach. This may include the following steps:

1. Define the production line: Define the production line and identify the workstations involved in the process.

2. Break down the process: Break down the process into individual steps and determine the time required to complete each step.

3. Assign tasks to workstations: Assign tasks to workstations based on the workload and resources available.

4. Monitor performance: Continuously monitor performance and make adjustments as necessary to ensure that the line is balanced and working at optimal capacity.

In a nutshell, line balancing is a key tool for improving efficiency and reducing waste in a manufacturing setting. By following a structured approach and continuously monitoring performance, manufacturers can ensure that their production lines are working at optimal capacity, leading to improved efficiency, reduced lead times, and increased productivity.

Overproduction

Overproduction is one of the seven kinds of wastes in the Lean Manufacturing methodology and refers to the production of goods in excess of what is immediately required by the customer. This type of waste can have a significant impact on the efficiency and profitability of a manufacturing operation, and as a Lean Management Expert, I would like to provide an overview of the negative effects of overproduction.

One of the main negative effects of overproduction is increased inventory costs. When a manufacturer produces more goods than are immediately required by the customer, the excess inventory takes up valuable space in the warehouse and incurs additional costs for storage and handling. This inventory also ties up capital that could be used elsewhere in the business, reducing the overall financial performance of the company.

Another negative effect of overproduction is increased lead time. When a manufacturer produces goods in excess of what is immediately required, the production line may become congested, leading to delays and increased lead time. This can negatively impact customer satisfaction and reduce the competitiveness of the manufacturer.

Overproduction can also lead to increased defects and decreased quality. When a manufacturer produces more goods than are immediately required, the pressure to maintain production speed and volume can lead to shortcuts being taken and decreased attention to detail. This can result in an increase in defects and a decrease in overall product quality, leading to customer complaints and reduced customer loyalty.

Finally, overproduction can contribute to a lack of flexibility and responsiveness. When a manufacturer produces more goods than are immediately required, they may not be able to respond quickly to changes in customer demand, leading to increased lead time and decreased customer satisfaction. This can also result in increased costs due to the need to adjust production processes and manage excess inventory.

In a nutshell, overproduction is a significant waste in the manufacturing process and can have a negative impact on efficiency, profitability, and customer satisfaction. By focusing on reducing overproduction and improving production processes, manufacturers can increase their competitiveness and improve their overall performance. We recommend that manufacturers continuously monitor their production processes and work to reduce overproduction and improve the overall efficiency of their operations

Process Chain

The manufacturing industry is a complex system of processes, with each stage relying on the success of the previous one to achieve the final product. The process chain is the backbone of this system, connecting each stage together to ensure a seamless flow of goods and services.

To achieve the highest level of efficiency in the production process, it is important to understand the process chain and how it serves the production processes. This includes identifying the inputs, outputs, and key activities of each stage, as well as the flow of goods, services, and information throughout the chain.

One of the first steps in optimizing the process chain is to establish clear and standardized procedures for each stage. This includes defining the roles and responsibilities of each team member, as well as establishing a clear communication plan to ensure that everyone is aware of the status of each stage.

Another important factor in optimizing the process chain is to reduce waste and increase efficiency. This can be achieved through continuous improvement efforts, such as streamlining processes, reducing inventory, and minimizing lead times. Lean tools, such as value stream mapping, can be used to identify areas of waste and opportunities for improvement.

Additionally, investing in new technology and equipment can also help to improve the process chain. Automation and digitalization of the production process can lead to faster and more accurate production, as well as reduced labor costs and increased productivity.

Furthermore, involving employees in the continuous improvement process is crucial in achieving the best results. Encouraging their input and ideas can lead to new solutions and creative thinking that can drive process improvement. Employee training and development programs can also help to enhance the skills and knowledge of the workforce, leading to increased efficiency and effectiveness.

Another important aspect of the process chain is supplier selection and management. Careful selection of suppliers can ensure that high-quality inputs are used in the production process, reducing the likelihood of defects and increasing efficiency. Effective supplier management can also ensure timely delivery of goods and services, reducing lead times and minimizing the impact of supply chain disruptions.

In a nutshell, the process chain is a critical component of the manufacturing industry, serving as the foundation for the production processes. By establishing clear procedures, reducing waste and increasing efficiency, investing in new technology, involving employees, and carefully selecting and managing suppliers, manufacturers can optimize the process chain and achieve operational excellence

Cell Production

Cell Production focuses on optimizing the flow of work and improving efficiency in manufacturing and operations. It is based on the concept of organizing work into cells, which are self-contained units responsible for performing a specific set of tasks. The goal of cell production is to minimize waste, increase flexibility, and improve overall performance.

The origins of cell production can be traced back to the 1950s and 60s, when Toyota and other Japanese companies were experimenting with new approaches to manufacturing. Over time, the concept of cell production has evolved and been refined, and today it is widely used in a variety of industries, including automotive, electronics, and consumer goods.

In order to implement cell production effectively, there are several key steps that organizations must take. Firstly, it is important to conduct a thorough analysis of the current state of the manufacturing or operations process, in order to identify areas where improvements can be made. This may involve mapping out the flow of work and identifying bottlenecks or other inefficiencies.

Once these areas have been identified, the next step is to reorganize the work into cells, taking into account the specific requirements of each cell and the skills and expertise of the employees who will be working in them. This may involve rearranging physical work spaces, or changing the way that work is assigned and managed.

It is also important to establish clear communication and feedback mechanisms, so that employees and teams can work together effectively. This may involve setting up regular meetings to discuss performance, or implementing systems for tracking and reporting on key metrics.

In order to ensure a successful implementation of cell production, it is also important to provide training and support for employees. This may involve providing training on the new processes and procedures, or offering coaching and mentoring to help employees develop the skills and knowledge they need to be effective.

Another key aspect of cell production is continuous improvement. This involves regularly reviewing performance and making adjustments as needed, in order to optimize efficiency and reduce waste. This may involve experimenting with different approaches, such as implementing new technologies or streamlining processes, in order to find the best solutions.

In conclusion, cell production is a powerful methodology for optimizing performance in operations and manufacturing. By reorganizing work into cells, minimizing waste, and continuously improving performance, organizations can increase efficiency, reduce costs, and improve overall performance. In order to be successful, organizations must take a structured and systematic approach, and be committed to ongoing improvement.

JIT

Just-in-Time (JIT) is a manufacturing and inventory control system in which raw materials, components, and finished products are delivered to the production line exactly when they are needed. The goal of JIT is to minimize inventory levels and reduce lead times, while maintaining high levels of production efficiency.

JIT is a pull-based system, which means that production is driven by customer demand rather than by a production schedule. This is achieved by using Kanban, a signaling system that alerts the supplier to send more materials or components when the inventory level of a specific item reaches a predetermined minimum level.

The origins of JIT can be traced back to the manufacturing practices of the Toyota Motor Company in the 1950s. It was developed by Taiichi Ohno, an engineer at Toyota, as a response to the inefficiencies he observed in the company's production processes. Ohno recognized that by reducing the amount of inventory and increasing the flow of materials, Toyota could improve its production efficiency and responsiveness to customer demand.

One of the key principles of JIT is the elimination of waste, or "muda" in Japanese. Ohno identified seven types of waste in manufacturing: overproduction, waiting, unnecessary motion, overprocessing, defects, excess inventory, and unused human potential. JIT aims to eliminate these forms of waste by creating a smooth and efficient flow of materials and products through the production process.

JIT also relies on the concept of "one piece flow", which is the production of one item at a time, rather than producing large batches of items. This allows for better control of the production process, as well as the ability to quickly identify and correct any problems that may arise.

Another important aspect of JIT is the use of visual management tools, such as Andon boards and Kanban boards. These tools allow for real-time monitoring of the production process, and can alert workers to potential problems before they become major issues.

JIT also requires a high level of collaboration and communication between suppliers, manufacturers, and customers. This is necessary to ensure that materials and components are delivered to the production line exactly when they are needed, and that finished products are delivered to customers in a timely manner.

JIT has a number of benefits for manufacturers. One of the most significant is that it can help to reduce inventory levels, which can free up valuable floor space, reduce storage costs, and minimize the risk of stockouts. JIT can also help to improve production efficiency by reducing lead times and minimizing downtime caused by waiting for materials or components.

JIT can also help to improve product quality by reducing defects, and increasing the ability to quickly identify and correct any problems that may arise in the production process.

JIT also helps companies to be more responsive to customer demand by reducing lead times and increasing the speed of delivery. This can help to improve customer satisfaction, and increase the chances of repeat business.

JIT also helps companies to be more flexible and adaptable to changes in customer demand. It allows companies to more easily shift production to different products or product lines, which can help to maintain profitability during periods of slow sales.

However, it's worth noting that JIT is not suitable for all industries and companies, it's best applied in companies where the production process is well-defined, the demand is stable and predictable, and the lead times are short. Implementing JIT can also be challenging and requires a significant investment of time and resources to establish an effective system.

Additionally, JIT requires a high level of coordination and communication with suppliers and customers, which can be difficult to achieve. This is particularly true for companies that have a large number of suppliers or customers, or those that operate in

Kaikaku

KAIKAKU, which means "radical change" or "revolution" in Japanese, is a key concept in Lean management and operational excellence. It refers to a transformative approach to process improvement that aims to achieve significant and lasting improvements in performance. KAIKAKU is different from other process improvement methods, such as Kaizen, which focus on incremental improvements, KAIKAKU is characterized by a bold, dramatic change in the way a process is performed.

One of the key features of KAIKAKU is that it is not just about improving the existing process, but also about rethinking and redesigning the process from scratch. This approach allows organizations to identify and eliminate sources of waste, inefficiencies, and bottlenecks that may have been present in the process for years. By starting with a blank slate, organizations can create a new process that is more efficient, effective, and sustainable.

KAIKAKU is often used in manufacturing and production processes, where significant improvements in performance can have a major impact on the bottom line. For example, a manufacturing facility might use KAIKAKU to redesign its production process, eliminating bottlenecks, reducing waste, and increasing capacity. This could result in faster turnaround times, higher quality products, and lower costs.

Another key feature of KAIKAKU is that it often involves the use of new technologies and automation. By adopting new technologies and automating processes, organizations can achieve significant improvements in performance. For example, a manufacturing facility might use KAIKAKU to introduce robots, automated inspection systems, or artificial intelligence to its production process. This could result in faster turnaround times, higher quality products, and lower costs.

KAIKAKU also involves the active participation of employees, especially those who are directly involved in the process. By involving employees in the process improvement process, organizations can tap into their expertise and knowledge, and create a sense of ownership and engagement. Employees can also bring valuable insights into the process and suggest new ideas for improvement.

KAIKAKU is also closely linked to the concept of "Just-in-Time" (JIT) manufacturing. JIT is a production strategy that aims to produce the right products at the right time, and in the right quantities, by minimizing waste and unnecessary inventory. By implementing KAIKAKU, organizations can achieve significant improvements in performance and implement JIT successfully.

In a nutshell, KAIKAKU is a powerful method for organizations that are committed to operational excellence and continuous improvement. By rethinking and redesigning the process from scratch, organizations can identify and eliminate sources of waste, inefficiencies, and bottlenecks that may have been present in the process for years. By adopting new technologies and automating processes, organizations can achieve significant improvements in performance. By involving employees in the process improvement process, organizations can tap into their expertise and knowledge. By implementing KAIKAKU, organizations can achieve significant improvements in performance and implement JIT successfully.

KOSU

KOSU, short for "Key Operating System Units", is a method used in Lean management and operational excellence to identify and measure the critical units of a process that are essential for the overall performance and success of the operation. By identifying these key units, organizations can focus their improvement efforts on the areas that will have the greatest impact on performance.

The basic idea behind KOSU is to identify the critical units of a process that are essential for the overall performance and success of the operation. This can include things like machines, equipment, personnel, and processes. By identifying these key units, organizations can focus their improvement efforts on the areas that will have the greatest impact on performance.

One of the key benefits of using KOSU is that it helps organizations to identify and prioritize the areas of the process that are most critical to performance. By identifying the key units of a process, organizations can focus their improvement efforts on those areas that will have the greatest impact on performance. This allows them to make the most of their resources and achieve the greatest return on investment.

Another benefit of using KOSU is that it helps organizations to identify and eliminate bottlenecks in the process. By identifying the key units of a process, organizations can identify which units are causing delays and bottlenecks in the process, and then take action to eliminate those bottlenecks. This can include things like improving machine maintenance, optimizing production processes, or identifying areas where automation can be used to improve efficiency.

Using KOSU also helps organizations to identify areas where standardization can be used to improve a process. By identifying the key units of a process, organizations can identify which units are taking longer than they should, and then take action to standardize those processes. This can include things like implementing best practices, developing standard operating procedures, or identifying areas where automation can be used to improve efficiency.

In addition, KOSU can be used to identify areas where automation can be used to improve efficiency. By identifying the key units of a process, organizations can identify which units are taking longer than they should, and then take action to automate those processes. This can include things like using robotics, using automated inspection systems, or using artificial intelligence to optimize production processes.

KOSU also plays a critical role in analyzing machine’s capacity. By identifying the key units of a process, organizations can identify which units are operating at full capacity, and which ones have room for improvement. This can help organizations to optimize their production processes, and ultimately, increase their overall production capacity.

In a nutshell, KOSU is a powerful method for organizations that are committed to operational excellence and continuous improvement. By identifying the key units of a process, organizations can focus their improvement efforts on the areas that will have the greatest impact on performance, eliminate bottlenecks in the process, use standardization to improve a process, use automation to improve efficiency and increase their overall production capacity.

Machine Cycle Time

Machine Cycle Time is a term used to describe the amount of time it takes for a machine to complete one full cycle of operation. In the context of Lean management and operational excellence, machine cycle time is a critical metric that can be used to measure the efficiency and effectiveness of a manufacturing or production process.

The basic idea behind machine cycle time is that it measures the amount of time it takes for a machine to complete a specific task or series of tasks. This can include things like setting up a machine, loading raw materials, running a production process, and unloading finished products. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can gain insight into how efficiently the machine is running and identify areas for improvement.

One of the key benefits of measuring machine cycle time is that it can help organizations to identify bottlenecks and delays in the production process. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can identify which machines or processes are taking longer than they should, and then take action to address these bottlenecks. This can include things like improving machine maintenance, optimizing production processes, or identifying areas where automation can be used to improve efficiency.

Another benefit of measuring machine cycle time is that it can help organizations to identify areas where standardization can be used to improve a process. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can identify which machines or processes are taking longer than they should, and then take action to standardize those processes. This can include things like implementing best practices, developing standard operating procedures, or identifying areas where automation can be used to improve efficiency.

Measuring machine cycle time can also help organizations to identify areas where automation can be used to improve efficiency. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can identify which machines or processes are taking longer than they should, and then take action to automate those processes. This can include things like using robotics, using automated inspection systems, or using artificial intelligence to optimize production processes.

Machine cycle time also plays a critical role in analyzing machine’s capacity. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can identify which machines are operating at full capacity, and which ones have room for improvement. This can help organizations to optimize their production processes, and ultimately, increase their overall production capacity.

In conclusion, machine cycle time is a critical metric that can be used to measure the efficiency and effectiveness of a manufacturing or production process. By measuring the amount of time it takes for a machine to complete a full cycle of operation, organizations can gain insight into how efficiently the machine is running, identify bottlenecks and delays in the production process, identify areas where standardization can be used to improve a process, and identify areas where automation can be used to improve efficiency. Ultimately, measuring machine cycle time is a powerful tool for organizations that are committed to operational excellence and continuous improvement.

Swim Lane Flowchart

A Swim Lane Flowchart, also known as a cross-functional flowchart, is a type of process mapping tool that is used to visually represent the flow of a process and the various roles and responsibilities involved in that process. The methodology of the Swim Lane Flowchart comes from the field of Lean management and operational excellence, which emphasizes the importance of efficiency and continuous improvement in business operations.

The Swim Lane Flowchart is used to clearly identify and document the steps in a process, as well as the individuals or groups responsible for each step. This allows for a clear understanding of the process and helps to identify areas for improvement. The Swim Lane Flowchart is particularly useful for identifying bottlenecks and delays in a process, as well as for identifying areas where multiple teams or departments are involved in a single process.

One of the key benefits of the Swim Lane Flowchart is that it helps to break down silos and promote cross-functional collaboration. By clearly documenting the roles and responsibilities of different teams and departments, the Swim Lane Flowchart helps to identify areas where different teams can work together more effectively. This can lead to increased efficiency and improved communication among different teams and departments.

Another benefit of the Swim Lane Flowchart is that it helps to identify areas where automation can be used to streamline a process. By clearly documenting the steps in a process and the individuals or groups responsible for each step, the Swim Lane Flowchart can help to identify areas where automation can be used to reduce human error and improve efficiency.

The Swim Lane Flowchart is also useful for identifying areas where standardization can be used to improve a process. By clearly documenting the steps in a process and the individuals or groups responsible for each step, the sSwim Lane Flowchart can help to identify areas where standardization can be used to reduce variation and improve the overall quality of a process.

In conclusion, the Swim Lane Flowchart is a powerful tool for improving business operations and promoting cross-functional collaboration. By clearly documenting the steps in a process and the individuals or groups responsible for each step, the Swim Lane Flowchart can help organizations to identify areas for improvement and take action to improve efficiency and effectiveness. Whether it is used to identify bottlenecks and delays in a process, or to promote automation and standardization, the Swim Lane Flowchart is a valuable tool for organizations that are committed to operational excellence and continuous improvement.

Standard Layout

Standard Layout: The Key to Unlocking Efficiency in Lean Management

Standardization is one of the fundamental principles of lean management, and it's no surprise that it's also one of the most effective ways to improve efficiency and reduce waste in your operations. One of the most powerful tools in the standardization toolbox is the standard layout, also known as "taikyō-sei" in Japanese.

A standard layout is a detailed, visual representation of the ideal workflow and arrangement of resources in a given area. This can include anything from the placement of tools and equipment to the flow of materials and the location of workstations. The goal is to create a clear and consistent way of working that minimizes waste, maximizes efficiency, and makes it easy for everyone on the team to understand and follow.

One of the most important benefits of a standard layout is that it makes it much easier to identify and eliminate sources of waste and inefficiency. By clearly defining the ideal way of working, it becomes much easier to see where things are going wrong and to make adjustments as needed. This can include anything from adjusting the location of workstations to the flow of materials, to the type and size of tools and equipment.

Another key benefit of a standard layout is that it makes it much easier to train new employees and to ensure that everyone is following the same processes. When everyone is working in the same way, it becomes much easier to share knowledge and best practices, which can help to improve the overall performance of the team.

Finally, a standard layout can also be a powerful tool for continuous improvement. By clearly defining the ideal way of working, it becomes much easier to measure performance and to identify areas for improvement. This can include anything from adjusting the flow of materials to the location of workstations, to the type and size of tools and equipment.

So, how do you go about creating a standard layout? The first step is to conduct a thorough analysis of your current operations. This should include a detailed study of the flow of materials, the location of workstations, and the type and size of tools and equipment. You should also pay close attention to the flow of people and information, as this can have a big impact on overall efficiency.

Once you have a good understanding of your current operations, you can then begin to create a detailed, visual representation of the ideal workflow and arrangement of resources. This should include everything from the placement of tools and equipment to the flow of materials and the location of workstations.

It's also important to involve your entire team in the process of creating a standard layout. This will help to ensure that everyone is on board with the changes and that everyone understands the benefits of standardization.

Once you have a standard layout in place, it's important to monitor and measure its effectiveness on a regular basis. This can include anything from tracking the flow of materials to the location of workstations, to the type and size of tools and equipment. It's also important to involve your entire team in the process of monitoring and measuring performance, as this will help to ensure that everyone is committed to continuous improvement.

In conclusion, a standard layout is a powerful tool for unlocking efficiency in lean management. By clearly defining the ideal way of working, it becomes much easier to see where things are going wrong and to make adjustments as needed. This can include anything from adjusting the flow of materials to the location of workstations, to the type and size of tools and equipment. Furthermore, it is a powerful tool for training, knowledge sharing, and continuous improvement. If you're looking to improve efficiency and reduce waste in your operations, a standard layout is definitely worth considering.

Mura

Mura, one of the three types of waste in the Toyota Production System, translates to "unevenness" or "inconsistency" in English. It refers to the irregularity in the flow of work, causing fluctuations in capacity and production. Identifying and removing Mura is essential for creating a steady work pace and optimizing resources.

One of the main causes of Mura is multitasking. When team members are constantly switching between tasks, they often lose focus and efficiency, leading to unevenness in the workflow. This results in longer lead times, increased inventory, and higher costs.

Another cause of Mura is overproduction. Producing more than what is needed, whether it's goods or services, creates an imbalance in the system and results in unnecessary inventory. This not only ties up valuable resources but also increases the risk of defects and rework.

To handle Mura, one must first understand the root cause of the unevenness. This can be done through value stream mapping, a tool that visually represents the flow of work and helps identify areas of waste. By analyzing the current state of the process, one can identify the steps that are causing Mura and implement solutions to eliminate them.

One effective solution is to implement a pull system, also known as "kanban" in Japanese. This system ensures that work is only produced when it is needed, eliminating overproduction and promoting a steady flow of work.

Another solution is to implement standard work. By standardizing the work process, team members are able to work consistently and efficiently, resulting in less Mura. This also helps in identifying and addressing any abnormalities that may occur in the process.

Additionally, involving the team members in problem-solving and continuous improvement activities can lead to increased ownership and accountability, leading to a reduction in Mura.

Implementing a pull system, standard work and involving team members in problem-solving and continuous improvement activities can help organizations to create a steady flow of work and optimize resources.

It's important to note that Mura is not a problem that can be solved once and for all. It's a continuous effort and requires constant monitoring and improvement. Regularly conducting value stream mapping and Gemba walks, where one goes to the place where the work is done to observe and understand the process, can help in identifying and addressing Mura.

In conclusion, Mura is a key concept in lean management and must be addressed to ensure a steady work pace and optimize resources. By understanding the root cause of Mura and implementing solutions such as pull systems, standard work, and involving team members in problem-solving and continuous improvement activities, organizations can achieve the goal of smooth and well-organized workflow.

Mentor

The concept of mentorship can be traced back to the story of "The Odyssey" by Homer, where Mentor was a trusted advisor to Odysseus and a mentor figure to Telemachus.

Telemachus viewed him as a wise and experienced older person who guided him, offered him encouragement and support, and helped him develop into his role and responsibilities.

Lean management is a methodology that aims to eliminate waste and optimize resources in order to improve efficiency and productivity. It is widely used in various industries and has been proven to be highly effective in reducing costs, increasing quality, and improving overall performance. However, implementing lean management can be challenging, especially for those who are new to the field. This is where the role of a mentor comes in.

A mentor is a seasoned professional who has extensive experience in lean management and is willing to share their knowledge and expertise with others. The mentor's role is to guide, advise, and support the mentee in their journey to become proficient in lean management. They provide valuable insights and practical advice that can help the mentee avoid common pitfalls and achieve their goals more quickly.

One of the main benefits of having a mentor is that they can provide the mentee with a different perspective on the problems they are facing. Mentors have a wealth of experience and have likely encountered similar issues in the past. They can share their knowledge and offer solutions that the mentee may not have considered. This can be especially valuable when the mentee is dealing with a complex problem that requires a unique solution.

Another benefit of having a mentor is that they can provide guidance on how to implement lean management in a specific industry or organization. Lean management can be applied to many different types of businesses, but the specific implementation may vary depending on the industry or organization. A mentor can provide guidance on how to tailor lean management to the mentee's specific situation and help them avoid common mistakes.

Moreover, mentors can provide a sounding board for the mentee to discuss their ideas and concerns. This can be particularly beneficial when the mentee is dealing with a difficult situation or trying to navigate a complex process. Mentors can help the mentee to think through their options and make the best decision for their situation.

In addition, mentors can provide the mentee with access to a network of professionals who can offer additional support and advice. This can be especially valuable when the mentee is trying to find resources or connect with other professionals who can help them with their specific goals.

Overall, the role of a mentor in lean management is crucial. They provide guidance, support, and practical advice that can help the mentee become proficient in lean management more quickly and effectively. They offer a different perspective on problems and can provide guidance on how to implement lean management in a specific industry or organization. And they offer a sounding board and access to a network of professionals.

In a nutshell, having a mentor can make a significant difference in the mentee's ability to implement lean management successfully and achieve their goals. It is important for organizations and individuals to find a mentor who can provide the guidance and support they need to excel in their journey of implementing lean management.

Standard WIP (SWIP)

The minimum amount of material or product that must be in the process at all times to ensure smooth operation.

Standard Work is a little underrated concept in Lean Manufacturing. It is not simply standardization or work standards.

Standard Work is composed of three elements: Takt time, Work sequence and Standard Work in Process (SWIP). Takt Time is a fundamental concept of Lean Manufacturing, and Work Sequence is relatively intuitive. SWIP, however, is a bit more complex.

SWIP refers to the minimum necessary in-process inventory (work in process or WIP) to maintain Standard Work. It is not more or less than what is needed. To calculate the appropriate quantity for SWIP, one must ask a number of questions.

While a rough estimate of SWIP can be obtained by using the equation SWIP = Sum of Cycle Times / Takt Time, it is still necessary to determine where exactly this SWIP should be applied. The following steps provide a guide for determining the appropriate quantity of SWIP:

what’S the team size?

Standard Work is the most efficient combination of manpower, material, and machine, and is based on takt, work sequence, and Standard Work in Process (SWIP). By definition, it should include manual work. If a process is fully automated, it is not considered Standard Work. Instead, it is likely an NC program.

To determine the appropriate team size, the sum of manual cycle time is divided by Takt Time. Therefore, one piece of SWIP per person is required. The equation for manual SWIP would than be:

SWIP(manual) = Team member x (1 piece = person)

When determining the amount of SWIP, there should be no rounding, unless there is less than a full person. In that case, round up to the nearest whole number.

process steps as automatic one-piece cycle machines

Standard Work assumes the use of multiple processes or machines, and separates human and machine tasks as much as possible.

When using an automatic cycle, the worker will only be responsible for loading and unloading, and will not be present during the actual cycle. The automatic cycle time must also be shorter than the Takt Time, ensuring that there is always at least one piece in the machine during each cycle.

This is known as SWIP (single piece auto), and is calculated as the number of single-piece automatic cycle machines multiplied by one piece per machine. There is no rounding necessary as it is not possible to have less than a full machine. However, this only applies to single-piece automatic cycles, and calculations for batch processes or cycles with longer lead times may differ.

process steps as a single-piece non-machine automatic cycle

The term "non-machine automatic cycle" refers to process steps such as the drying time for paint, curing time for epoxy, and cooling time for hot parts.

These process steps may not involve machines, but they do require a certain amount of time for completion. The ratio of this time to the Takt Time is known as the Single-Piece Non-Machine Automatic (SWIP) cycle.

It is important to note that this value should always be rounded up to the nearest whole number. In some cases, equipment like turn tables or FIFO racks may be used to manage the curing process, ensuring that a finished product is available for each takt, and a new one is added for curing.

Process steps with a batch automatic cycle

Batch processes refer to situations in which equipment is designed to unload and load multiple pieces at a time, rather than one piece at a time.

A common example is heat treatment processes where a vacuum must be maintained and the door cannot be opened for hours. In such cases, a batch of parts is removed and then another batch is loaded. The cycle time per piece may be less than the Takt Time, but the overall automatic Cycle Time is greater than the Takt Time.

The Single-Piece Non-Machine Automatic (SWIP) cycle in this case is calculated as (Automatic time / Takt Time) x 2. The reason for this is that in batch processes, which do not allow for the addition or removal of individual pieces during the Takt, an extra quantity of complete parts is required. This concept can be compared to the idea of a pulley and bucket system used to retrieve water from a well, where one bucket is at the bottom of the well, full of water and another bucket is at the top, full of water, and during Takt, you empty out the bucket one by one and fill it back up one by one.

It's worth noting that in formulas 2, 3 and 4, manual cycle time is not included in the calculation because rule #1 takes care of that. This is because every manual Cycle Time must be within Takt by definition of Standard Work and since the unload/load time will involve one piece, there is no need to add manual time back into the calculation (in most of the cases).

Muri

Muri, a Japanese term meaning "unreasonable, impossible, or overburdened," refers to the excessive demands placed on resources, such as equipment and operators, which can lead to wear and production downtime. This traditional Japanese concept is often associated with overburden, unreasonableness, and absurdity. However, it can be eliminated through the implementation of standard work practices.

INTRODUCTION

Lean management aims to optimize resources and eliminate wasteful activities in the production process. However, many lean practitioners often focus solely on identifying and eliminating the 7 wastes, known as Muda, neglecting the importance of the other two M's: Mura and Muri.

Identifying and addressing Mura (unevenness) is essential for creating a steady work pace, but it is equally important to identify and address Muri, which is the overburden of resources in the organization's work system. By identifying Muri, organizations can analyze and optimize the capacity of their workforce.

Let's dive deeper into understanding what Muri is and its significance.

What does Muri stand for?

As a lean expert, it's important to understand the concept of Muri, which is a Japanese term meaning "overburden or unreasonable." It is one of the three types of waste (Muda, Mura, Muri) and a key element in the Toyota Production System.

Muri occurs when demands placed on a team exceed their capacity, leading to stress and decreased productivity and efficiency. This can also result in extra working hours and occupational burnouts, negatively impacting team morale and the overall health of the work process.

To avoid this, it's important to be mindful of the workload and to strive for balance at the optimal capacity, where all parts of the system are able to deliver results without the need for extra work. It's also essential to understand the root causes of Muri in order to effectively address it.

What can Muri cause?

It's important to be aware that overburdening teams can occur without conscious intent. Setting unrealistic deadlines, for example, can lead team members to rush their work and result in poor quality and decreased customer satisfaction.

For instance, if a designer is asked to create twice the number of images they are capable of producing within a certain timeframe, it's likely that the final output will not be of the highest quality.

This analogy can be applied to an assembly line as well, where rushing the process can increase the likelihood of low-quality products being delivered to customers. There are various reasons that can contribute to creating Muri and it's important to identify and address them to maintain a smooth and efficient workflow.

Over-demanding

One of the most apparent causes of Muri is over-demanding, where higher management places excessive workloads on teams with the belief that more inputs will result in more outputs.

However, this often leads to a rising number of pending tasks and can cause chaos and burnouts among the team members. This over-demanding behavior is commonly seen in the contemporary business world, it is important for management to be aware of the consequences of overburdening the team, and to instead aim for a balance between inputs and outputs.

Lack of training

The lack of proper training can lead to inefficiencies and the prolonging of tasks. For example, if a team member is not properly trained for a specific task, they may take longer to complete it than necessary.

For instance, if an individual is trained as a copywriter but is assigned tasks of a designer, they may require twice as much time to produce high-quality images as compared to a regular designer who is properly trained for that role.

This highlights the importance of providing proper training and ensuring team members are equipped with the necessary skills to perform their roles effectively, which can help prevent Muri and optimize the workflow.

Lack of communication

Effective communication is crucial for the success of any team. To avoid overburdening, it is essential to establish clear communication channels and practices.

For example, if a meeting with team members is held and a decision is made to create 10 new landing pages for a website, it is important that all team members are informed and aware of the project, including the expected deadline.

Failure to do so, such as in the scenario where a designer is not informed until the last day before the deadline, can lead to overburdening and negative consequences of Muri due to miscommunication. Clear communication can prevent such situations and help teams work efficiently and effectively.

Lack of proper tools and equipment

When the necessary tools and resources are absent, the occurrence of Muri becomes evident and unavoidable. For example, if certain developers are given new computers while others are still using outdated equipment, the latter group will experience overburdening as they will require more time to complete their tasks.

Muri can be caused by various factors, it's important to keep in mind that managing and addressing all of them is crucial in order to maintain a stable and efficient workflow.

To effectively deal with Muri, it's important to identify and understand the root causes, and develop strategies to address them. This may include providing proper tools and resources, implementing clear communication channels, and providing adequate training to ensure that teams have the necessary skills to perform their roles effectively.

Different ways to deal with Muri

Lean management offers various techniques and strategies that can assist in minimizing the negative impact of overburdening or eliminating it altogether.

Map your team’s workflow

A useful starting point in identifying and addressing Muri is to map out your team's workflow. One tool that can aid in this process is a Kanban board, which visually displays the various stages of the workflow and allows for an understanding of your team's capacity and where value is added.

Next, implementing work-in-progress limits for each stage of the workflow can ensure that team members are not juggling multiple tasks at once, but are focusing on completing one task before moving on to the next. This helps to create an efficient pull system, which leads to better organization and prevents overburdening.

When dealing with multiple teams whose work is interdependent, it is important to also implement WIP limits on a global level. For example, if team A is responsible for developing new features for a software service and team B is responsible for deploying those features, but team A is delivering new features faster than team B can deploy them, team B will be constantly overburdened. To avoid this, team A must ensure that team B has the capacity to handle new features before starting work on them. This may mean that team A may have to wait, but it is better to have one team blocked than have the entire company impacted.

Standardize your process

Another approach to addressing Muri is through the implementation of standardization. By documenting all processes and providing thorough training to team members, you can ensure that everyone is equipped to complete their tasks in an efficient and effective manner. This promotes clear communication and helps to eliminate misunderstandings, which can contribute to overburden.

Practice Jidoka

Another Lean management technique that can be used to address Muri is Jidoka. This practice empowers team members to halt the work process if an issue arises, and requires the problem to be resolved before the process can continue. This helps to establish built-in quality standards and prevent the need for rework.

Furthermore, regularly conducting Gemba walks, which involve physically going to the work area to observe and understand what is happening, can also provide insight into where Muri is occurring and how it can be addressed.

In a nutshell

Many businesses unknowingly put excessive demands on their staff, known as Muri in Japanese. This can lead to decreased efficiency and wasted resources, impacting profitability. To address Muri, it is important to:

• Provide proper training and necessary tools and equipment to teams

• Establish clear communication channels and protocols

• Implement standard procedures within the organization

Standard Work Combination Sheet

In lean management, a standard work combination sheet is a document that displays the process steps for one or several employees. It is used to show the optimal combination of human and machine work. The sheet includes information on the timing values between different steps of the process, including manual work time, walk time, and machine processing time. The data recorded on the sheet is analyzed to identify any significant waste or delays in the process, and can be used to help determine the direction the company needs to take to address these issues. The sheet can also be used to evaluate the performance of individual employees, such as identifying if someone is overburdened with tasks or underutilized. Let’s go in a little bit detail in the following.

Standardized Work Combination Sheet

A Standardized Work Combination Sheet is a document that provides an overview of the interactions and timing between different parts of the work process. It displays how the various timing values such as manual work time, walk time, and machine processing time, combine and interact with each other. The sheet is designed to capture key data that is relevant to the understanding of the workflow and timing of the process.

What you should record

The data for each individual operator working on the floor is recorded in the Combination Sheet, and then analyzed using various forms of analysis. This sheet is useful for identifying any significant waste in delays between separate process steps, and can provide a clear indication of the direction the company needs to take to address these issues.

The most important points recorded in the sheet are the time required for human and machine movement, all based on the Takt Time. The sheet can help the company quantitatively evaluate an individual worker's performance and identify if they are overburdened by their current tasks.

Additionally, it can also reveal if a particular employee could be utilized more effectively. Often, companies may not realize that one of their workers is underutilized, spending less time performing actual work than expected. By properly recording and analyzing data using relevant tools to standardize the working environment, all the information will be easily accessible.

Eliminate waste

The Combination Sheet can help identify and eliminate waste in the production process by observing data recorded on the sheet, such as the time operators spend waiting for machines to complete tasks, waiting for input from other machines, or waiting for other operators to perform their tasks.

While some waiting may be necessary and an inherent part of the work process, it can be challenging to distinguish between necessary and unnecessary downtime. The Combination Sheet provides a comprehensive understanding of the current state of the production process and an objective view of each individual's involvement.

The data collected from the sheet is well-suited for graphical representation and can be easily analyzed using visualization tools. It may be incorporated into the sheet itself or handled by another department. The most crucial aspect is that the data is collected and organized correctly, as it can always be processed later.

How accurate should it be

The level of precision required for timing measurements can vary depending on the nature of your organizations processes. In some cases, it may not be necessary to record times down to the last second, such as when processes typically take over ten minutes. On the other hand, if the organization relies on many small and fast-paced processes, it may be necessary to use external devices to measure time as it would be difficult for a human operator to keep up.

It is essential to ensure that all data is measured consistently, as this is what establishes the validity of the data for later analysis. It is not advisable to round off one part of the data set while keeping another precise as it can lead to statistical deviations that are challenging to explain.

So what does it mean?

Employees may initially be uncertain about their new responsibilities related to completing the Combination Sheet, but taking the time to provide guidance and training can lead to significant improvements in the overall efficiency of the organization. Standard work can bring about significant changes in a company, but it is important to be patient and provide clear instructions during the initial implementation process. It can be a challenging transition, which is why it is essential to be well-versed in all the tools and techniques involved.

Kanban

In this article we want to talk about another classic from Lean Management Kanban or the so called Pull System.

The word Kanban itself has its roots in the Chinese Japanese language and means card, label or sticker. In industrial manufacturing planning systems or general in logistics control Kanban describes a replenishment system for consumed parts according to the amount used steered by cards that give the signal following the Pull Principle.

The material in the Kanban System is exclusively oriented to the consumption of your production process. The cards are a key element of this kind of control system and provide proper information transfer. Kanban control loops from the work station of flexible production control and serves to smooth material flow through your inbound or even outbound logistics. In addition Kanban serves you to implement a sustainable reduction of material stocks, increases the ability to deliver and saves you pure cash.

In an ideal world Kanban would control your entire value chain from the supplier to the end customer. In this way you would have installed an complete smooth supply chain with almost no chance of interruption and massive stocks. And now comes the but – to steer production with Kanban – a continuous monitoring is required for a smooth material supply. To make it short: it requires discipline from all involved parties along the supply chain.

Lets have a look to the development of Kanban.

The first Kanban System was developed by none other than Taiici Ohno (of course) at Toyota Motor in the 1940s. One of the main reasons for the implementation of Kanban was the low productivity and efficiency of Toyota compared to western competitors. With the Kanban System, Toyota achieved a significant change towards flexible and efficient production control that had a massive impact on productions output while at the same time reducing the costs for inventory in raw material, work in progress (WIP) and finished goods.

To give the complete picture it wasn’t implementing the Kanban system itself to drive the success of Toyota, there are other key factors that together where making the difference. Just to name Just in time as an example of key elements of the Toyota Production System. It is and always will be a combination of different methods and philosophy that brings you forward.

In the 1970s the Kanban Concept was adapted in the industry in the USA and Germany. As they haven’t known better, they pretty much copied the complete Toyota Production System (TPS) in order to get the principles running.

Pull or Kanban System

Either way you call it, the material flow is controlled by boxes or cards. Kanban Cards serving in a simple way all information needed to identify what parts are needed in what quantity at what place. The amount typically is defined by the replenishment time at the work station. With the so called two box principle you make sure that the operator never runs short on components. Nowadays there are also digital version of it called eKanban, but the principle behind is the same. The trigger of supply is the Kanban Card starting of the pull chain of material.

To use Kanban efficient, it is not suitable for all parts. Kanban is perfect for small parts with a small amount of variants and a consistent demand. For this reason, you’ll see Kanban Systems in the industry mostly used for C-Parts management. The rest of the components are steered with the support of MRP. Only in rare cases you find that even the supply of big components are controlled with the Kanban methodology.

One nice side effect with Kanban, you can set up the way you can steer your bottleneck. That means, when you have done a proper value stream analysis you know the capacity for your bottleneck and will only order what this process step can handle.

Poka Yoke

Poka-Yoke is any mechanism that helps to avoid unplanned mistakes. Poka-Yoke is that the application of straightforward, error-proof mechanisms to systematically avoid incorrect assembly, mix-ups or the downstream movement of defective parts. As a result of stable and high-quality methods begin long before the assembly section, simple Poka-Yoke measures will be enforced preventively within the construction and coming up with phase to make sure quality. Poka-Yoke is implemented to avoid: going away out or forgetting process steps, process or operational-related mistakes, incorrect or missing parts, setup or installation errors.

POKA YOKE ポカヨケ ("stupid mistakes - avoidance") is associate ideology that takes a spread of approaches to optimize production processes, particularly assembly. The main target of Poka-Yoke is strive for zero-defect production and to attain it approximately. If defects are detected, the cause is determined. If the cause can be avoided, it's eliminated pretty much as good as doable within the sense of Poka-Yoke and at the best doesn't occur again at all. Poka-Yoke was originally an initiative of Dr. Shingo, Shigeo (新郷 重夫), who is additionally a co-founder of the Toyota production system, of that Poka-Yoke is a core component. Poka-Yoke is beneath the umbrella of Kaizen 改善 ("continuous improvement for the better").

Poka-Yoke may be about recognizing the root causes in time and so eliminating them. Mistakes shouldn't solely be corrected, however prevented the in the longterm by eliminating their root causes. Within the ideal case, in the sense of Poka-Yoke, there are measures that utterly rule out a discovered error by eliminating the cause in the future, e.g. as a result of incorrect mounting is not any longer doable because of fixed given mounting ways (e.g. fitting shapes). Poka-Yoke demands product style ability to make a product design that forestalls errors (avoid incorrect operation) and is powerful against errors (despite incorrect operation no faulty processes). Thus the philosophy of Poka-Yoke doesn't solely begin within the production, however already in the product design.

A widely known everyday example is that the plug of the electric devices and the power outlets, that can't be inserted into the socket the incorrect way round. Measuring instruments may also be designed or programmed in such a way that they will not be misused. Poka-Yoke principles can also be found in other cases, e.g. ATMs dispense your credit card before the payout takes place. Fuel dispenser faucets solely work into the right tank for diesel or petrol, creating it tougher to refuel incorrectly. And so on.

Looking at Poka-Yoke in production "Nobody makes any mistakes" is the target of the Poka-Yoke methodology. Here a list of some mistakes that can typically be found in production:

• Incorrect positioning of assembly components

• Incorrect change of a die

• Incorrect mounting

• Wrong interpretation of directions

• Incorrect polarity in electrical connections

• Incorrect reading of measured values

• Incorrect connection of hoses

• Incorrect entries in devices

• Assembly of wrong components

• Skipped operations

• Operation/programming errors on machines

POKA YOKE follows three simple steps
Measurement:

If you can’t measure you can’t control. Simple fixtures or sensors up to high performance camera systems can support the right execution of processes and provides feedback about the correct or incorrect task completion. Measures can be taken by cameras, mechanical, sensor for light and colors, position, vibration, voltage or temperature.

Detection of deviation:

E.g. deviations are determined by checking the amount of tasks done during one operation - has had the operator enough movement to do the job? Are enough components used? (actual-target comparison). Or simple exploitation geometric mismatches when pins or special marking at the workstation are still visible or not used.

Regulation

When deviations occur make sure that measures are taken such as pulling the ANDON CORD by the so called stop the line authority. Only when error-causing steps are cancelled out a permanent production of OK parts can be achieved.

Only when living according to the Poka-Yoke philosophy on a daily basis and following the principles of Poka-Yoke you will be able to achieve with smart automation and trained operators long term success. Root Cause Analysis and sustainable counter measurements are key. In addition each operator should be trained to detect their own faults during operation.

It might seam to be waste to train operators to detect failures, but no matter how much you planing and effort you put in design, failures occur during assembly or manufacturing. Just think about wiring that is now crossing moving components, parts where the collision was not seen during design and so on, trust me the list can be endless. Some failures will be detected with smart automation checking devices. But these are typically very costly and need special trained people to maintain and most of the time these little pieces of technology can only do one job. Here joins Poka-Yoke the game. Cost efficient, failures or incorrect assemblies can’t be passed on and each operator develops an eye for deviation.

Just keep in mind that if you have mass production or small to middle series can determine if you should install a 100% check or if simple Poka-Yokes can get you where you want.

The most important part of Poka-Yoke at all is that failures are detected when they occur and the exponentially rising costs of defective parts passed on are prevented.

EPEI

EVERY PART EVERY INTERVAL

The abbreviation EPEI stands for the frequency at which cycle production makes the same component again. Parts are produced once on one resource.

Value Creation

The exact opposite of waste is value creation. That is what you aim for with all lean activities. Value creation are all activities that create or add value to your service or product and the customers are willing to pay for. When a service or product has been perceived or appraised to fulfill a customer need or desire as defined, the product or service may be said to have value or worth. Components of value may include quality, utility, functionality, capacity, aesthetics, timeliness or availability, price, etc.