松井製作所 List of Products and Services

When performing turning or milling operations, the workpiece may retain traces of the cutting tool, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation from the ideal shape is acceptable. By understanding geometric tolerances, one can grasp the designer's intent behind the drawings. This also clarifies how to proceed with processing and inspection based on specific references. This document explains "perpendicularity," a type of geometric tolerance. It will cover not only the definition but also when it is used and the measurement methods associated with it.

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When performing turning or milling operations, traces of the cutting tool may remain on the workpiece, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation from the ideal shape is acceptable. By understanding geometric tolerances, one can discern the designer's intentions behind the drawings. This also makes it clearer how to proceed with processing and inspection, including what to use as a reference and how to conduct the operations. This document explains "parallelism," a type of geometric tolerance. It will cover not only the definition but also when it is used and the measurement methods associated with it.

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【Lot】 10 to 1000 【Features】 This product consists of brass parts brazed to copper pipes. Our company possesses brazing equipment and performs gas brazing and high-frequency brazing. We use silver brazing and phosphorus copper brazing materials to braze brass parts to copper pipes and between copper pipes. We are a metal processing manufacturer specializing in non-ferrous metal processing, and in addition to brazing, we also handle hot forging of brass parts, machining, and assembly of units. We have factories located in Osaka and Tottori in Japan, as well as in China, and we have numerous transactions with major manufacturers. Our company also has a design department, so for prototypes and subsequent mass production, we engage the design department to carry out custom manufacturing. If you have any issues with copper pipe processing or the production of products using copper pipes, please feel free to consult Matsui Seisakusho.

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【Lot】 10 to 1000 【Features】 This is an example of copper pipe processed products that we handle. At Matsui Manufacturing, we perform end processing, drawing, expansion, and bending of copper pipes, specializing in processing pipe diameters from 4mm to 30mm. Our company is a metal processing manufacturer skilled in non-ferrous metal processing, and in addition to copper pipe processing, we also handle hot forging, machining, brazing of brass parts, and assembly of units. We have factories located in Osaka and Tottori in Japan, as well as in China, and we have numerous transactions with major manufacturers. We also have a design department, so for prototypes and subsequent mass production, we engage the design department to carry out custom manufacturing. If you have any issues with copper pipe processing or the production of products using copper pipes, please feel free to consult with Matsui Manufacturing.

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【Lot】 10 to 1000 【Features】 This is an example of copper pipe processed products that we handle. Matsui Manufacturing Co., Ltd. possesses equipment necessary for copper pipe processing, such as end processing machines, NC benders, and beading machines, and is capable of end processing like swaging, beading, and flaring, as well as 3D bending. Additionally, we also support brazing, so we can perform brazing with brass parts and brazing between copper pipes. At Matsui Manufacturing Co., Ltd., we also create custom copper pipe processed products tailored to customer requests beyond what has been introduced. We welcome inquiries starting with discussions about drawings, so please feel free to contact us through our website.

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When performing turning or milling operations, traces of the cutting tool may remain on the workpiece, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation from the ideal shape is acceptable. By understanding geometric tolerances, one can discern the designer's intentions behind the drawings. This also makes it clearer how to establish reference points and conduct processing or inspection. This document explains "cylindricity," a type of geometric tolerance. It will cover not only the definition but also when it is used and the measurement methods associated with it.

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When performing turning or milling operations, traces of the cutting tool may remain on the workpiece, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation is acceptable between the ideal shape and the actual shape. By understanding geometric tolerances, one can discern the designer's intent behind the drawings. It also clarifies how to proceed with processing and inspection based on specific references. This document explains "roundness," a type of geometric tolerance. It covers not only the definition but also when it is used and the measurement methods associated with it.

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When performing turning or milling operations, traces of the cutting tool may remain on the workpiece, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation from the ideal shape is acceptable. By understanding geometric tolerances, one can discern the designer's intentions behind the drawings. This also clarifies how to establish reference points and conduct processing or inspection. This document explains "flatness," a type of geometric tolerance. It will cover not only the definition but also when it is used and the measurement methods involved.

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When performing turning or milling operations, traces of the cutting tool may remain on the workpiece, and due to the effects of distortion or deflection during processing, there may be some deviation from the ideal shape. Geometric tolerances are used to indicate how much deviation from the ideal shape is acceptable. By understanding geometric tolerances, one can discern the designer's intentions behind the drawings. It also clarifies how to establish reference points and conduct processing and inspection. This document explains "straightness," a type of geometric tolerance. It will cover not only the definition but also when it is used and the measurement methods associated with it.

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【Lot】 100 to 10,000 【Processing】 Hot forging, machining 【Features】 This is a hot forged aluminum product. Hot forging has the following characteristics: 1. Material cost reduction During hot forging, the material deforms along the mold due to pressing, allowing for complex shapes to be processed all at once. As a result, the amount of material used is less compared to machining from square or round stock. 2. Processing cost reduction By using "hot forging" for rough shapes and "machining" for areas requiring higher precision, the total processing time can be reduced, which helps to lower processing costs. 3. Comparison with castings It has superior strength compared to castings. Additionally, issues such as internal voids that occur in castings do not arise. Aluminum is often used for lightweight components, and hot forging is a technology that can contribute to further performance improvements such as miniaturization and increased strength while keeping material and processing costs down. Due to its lightweight, high strength, excellent corrosion resistance, thermal conductivity, and machinability, the potential of hot forged aluminum products is vast.

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**Lot** 100 to 10,000 **Processing** Hot forging, machining **Features** This is a hot forged aluminum product. Hot forging has the following characteristics: 1. **Material Cost Reduction** During hot forging, the material deforms along the mold due to pressing, allowing for complex shapes to be processed all at once. As a result, the amount of material used is less compared to machining from square or round stock. 2. **Processing Cost Reduction** By using "hot forging" for rough shapes and "machining" for areas requiring higher precision, the total processing time is reduced, making it possible to lower processing costs. 3. **Comparison with Castings** Hot forged products have superior strength compared to castings. Additionally, issues such as internal defects like shrinkage cavities do not occur. Aluminum is often used for lightweight components, and hot forging is a technology that contributes to further performance improvements such as miniaturization and increased strength while keeping material and processing costs down. With characteristics such as lightweight, high strength, excellent corrosion resistance, thermal conductivity, and machinability, the potential of hot forged aluminum products is vast.

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【Lot】 100 to 10,000 【Processing】 Hot forging, machining 【Features】 This is a hot forged copper product. Hot forging has the following characteristics: 1. Material cost reduction During hot forging, the material deforms along the mold due to pressing, allowing for the processing of complex shapes all at once. As a result, the amount of material used is less compared to machining from square or round bars. 2. Processing cost reduction By using "hot forging" for rough shapes and "machining" for areas requiring higher precision, the total processing time can be reduced, leading to lower processing costs. 3. Comparison with castings Hot forged products have superior strength compared to castings. Additionally, issues such as internal defects like porosity do not occur. Although copper tends to have high material costs, hot forging is a technology that can contribute to quality improvements such as increased strength while keeping material and processing costs down. Copper possesses excellent thermal and electrical conductivity, is highly resistant to corrosion, and has notable antibacterial properties. The potential applications for hot forged copper products are wide-ranging, including terminal fittings, heat sinks, transformer components, and other everyday items.

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【Lot】 100 to 10,000 【Processing】 Hot forging, machining 【Features】 This is a hot forged copper product. Hot forging has the following characteristics: 1. Material cost reduction During hot forging, the material deforms along the mold due to pressing, allowing for complex shapes to be processed all at once. As a result, the amount of material used is less compared to machining from square or round stock. 2. Processing cost reduction By using "hot forging" for rough shapes and "machining" for areas requiring higher precision, the total processing time can be shortened, thereby reducing processing costs. 3. Comparison with castings Hot forged products have superior strength compared to castings. Additionally, issues such as internal defects like porosity do not occur. Although copper tends to have high material costs, hot forging is a technology that can contribute to improved strength and overall quality while keeping material and processing costs down. Copper possesses excellent thermal and electrical conductivity, is highly resistant to corrosion, and has notable antibacterial properties. The potential applications for hot forged copper products are wide-ranging, including terminal fittings, heat sinks, transformer components, and other everyday items.

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We would like to introduce a case study of custom jig creation using a high-hardness resin 3D printer. There are many products with small lot sizes and a variety of types, and producing them through metal processing becomes expensive. Additionally, making them out of metal results in heavier products, leading to the challenge of wanting to reduce weight to improve work efficiency. Therefore, we created jigs using a 3D printer. As a result, the jigs have higher strength compared to general nylon and ABS resins, and they are significantly lighter than metal, which has improved work efficiency and made it possible to produce them at a low cost. [Case Overview] ■Challenges - High costs when produced through metal processing - Need to reduce weight to improve work efficiency due to heaviness of metal ■Results - Improved work efficiency - Possible to produce at a low cost For your reference: A video introducing our jig production by Ricoh https://www.ricoh.co.jp/3dp/case/matsui/ *For more details, please refer to the PDF document or feel free to contact us.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, we will examine how the use of irregular materials affects manufacturing costs, using specific figures, with the metal processing industry as an example. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates" first. *Please note that the figures used in this document are merely examples and may not accurately reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, we will examine how integrating parts affects manufacturing costs, using specific figures, with the metal processing industry as an example. We will also introduce a practical example of part integration through hot forging. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates" first. *Please note that the figures used in this document are merely examples and may not accurately reflect the realities of individual companies.

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Manufacturing costs vary depending on factors such as processing methods, machinery used, setup time, and processing time. In this document, we will examine the impact of adding 100% inspection on manufacturing costs, using the metal processing industry as an example, and we will look at specific numbers. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates" first. *Please note that the numbers used in this document are merely examples and may not reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, using the metal processing industry as an example, I would like to examine how making adjustments in machining center processing affects manufacturing costs, using specific figures. *I believe it would be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates." *Please note that the figures used in this document are merely examples and may not accurately reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, we will examine how manufacturing costs change when external setups are implemented during mass production using machining centers and NC lathes, using specific figures as examples. *It may be easier to understand if you read from "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates." *Please note that the figures used in this document are merely examples and may not accurately reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, we will examine how manufacturing costs change when setup time is reduced during mass production using machining centers and NC lathes, using specific figures as examples. *It may be easier to understand if you read from "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates." *Please note that the figures used in this document are merely examples and may not reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on factors such as processing methods, machinery used, setup time, and processing time. In this document, we will examine how manufacturing costs change when altering the production lot size during mass production using machining centers and NC lathes, using specific figures as examples. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates" first. *Please note that the figures used in this document are merely examples and may not accurately reflect the actual circumstances of individual companies.

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Manufacturing costs vary depending on processing methods, machinery used, setup time, processing time, and other factors. In this document, we will examine how manufacturing costs change when one person operates one machining center versus when one person operates multiple machining centers, using specific numbers as examples, focusing on the metal processing industry. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates" first. *Please note that the numbers used in this document are merely examples and may not accurately reflect the actual situation of individual companies.

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Manufacturing costs vary depending on processing methods, machines used, setup time, processing time, and other factors. In this document, we will examine how much manufacturing costs change when comparing manual processing with general-purpose milling machines and lathes to unmanned processing with machining centers and CNC lathes, using specific figures as examples. *It may be easier to understand if you read "How to Determine Quotation Prices - Series 1: Basic Concepts of Labor Rates." *Please note that the figures used in this document are merely examples and may not accurately reflect the actual circumstances of individual companies.

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When estimating new products in the manufacturing industry, I believe calculations are based on the "rate" (which may be referred to by various names such as "processing rate" or "charge," but in this document, we will call it "rate"). For newcomers who have just joined the company, there may be many who say, "Our company has a set rate of ●● yen/minute, and we calculate estimates based on that, but I don't really understand how that number is determined." This document will look at how the rate is calculated and the basic concepts behind it. *Please note that this document aims to explain things as clearly as possible, so there are parts where detailed explanations have been simplified.*

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In the factory, various products are produced, and the "work instruction sheet," which outlines the work processes in order, is used in situations such as the following: - As educational material when a new person joins and needs to perform tasks - To ensure that there are no omissions when an order comes in after a long time - To clarify changes and prevent incorrect work from being done It is also used when experienced workers confirm familiar work procedures, but I believe its significance is particularly great during what are referred to as the 3 Hs (first time, changes, long time). While the "work instruction sheet" may describe what to do when work proceeds smoothly, there are likely few that include details on how to handle defective products, such as "if a defect occurs in this process, handle it this way." Even if such information exists, does it align with the actual processes? In this document, I would like to introduce cases where "defects occur even though we are supposed to be following the work instruction sheet."

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It is often said that 'business should be considered in terms of numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make the right decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misinterpreted numbers.'

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It is often said that 'business should be considered in terms of numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make the right decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misinterpreted numbers.'

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It is often said that 'business should be considered in terms of numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make correct decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misunderstood numbers.'

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It is often said that 'business should be considered in terms of numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make the right decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misinterpreted numbers.'

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It is often said that 'business should be considered in terms of numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make the right decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misinterpreted numbers.'

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It is often said that 'business should be considered in numbers.' When it comes to management decisions, the first numbers that come to mind are the financial figures used in accounting (such as sales, manufacturing costs, and gross profit). It would be great if we could make the right decisions using these numbers, but if we misuse them, we can end up making unexpected mistakes. In this document, I would like to introduce and explain the 'traps of easily misunderstood numbers.'

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In this document, I would like to outline the calculation method for "flatness," which is a type of geometric tolerance. Rather than following specific formulas, I aimed to emphasize the "meaning of the formulas" and what the calculations aim to achieve. *This document has been created with the intention of being as simple as possible. For detailed explanations, please refer to commercially available books and other resources.

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I will explain the contents and structure of a household toilet tank! *This document has been created with the aim of providing a simple explanation. For more detailed information, please refer to commercially available books and other resources.

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This document explains the flush valve, which plays a crucial role in toilets that are almost always installed in public facilities such as stations, commercial establishments, and schools. Specifically, I would like to explain the characteristics of the flush valve, the evolution of toilets, their structure, and the principles of operation using illustrations. *This document has been created with the aim of providing a simple explanation. For more detailed information, please refer to commercially available books and other resources.*

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Air conditioning units are installed everywhere, including your homes, workplaces, and even inside stations and buildings. When you search online for the mechanisms of air conditioning units and coolers, terms like "refrigeration cycle" and "heat pump" come up. While many articles and books introduce these principles, I believe there are not many that answer questions like "Why use refrigerants?" and "Why is a compressor necessary?" This document aims to address such simple questions. *This document has been created with the intention of providing a simple explanation. For detailed explanations, please refer to commercially available books and other resources.*

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Air conditioning units are installed in various places such as your home, workplace, and inside stations and buildings. When the air conditioning is in cooling mode, cold air flows out, and when it is in heating mode, warm air flows out. But what specific temperatures and humidity levels are present in the air that comes out? Additionally, what is the reasoning behind determining those levels? In this document, I would like to briefly explore how to create comfortable air using a tool called the "psychrometric chart." *This document has been created with the aim of providing a simple explanation. For more detailed information, please refer to commercially available books and other resources.*

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In the manufacturing industry, overseas production has become the norm. Many companies are developing new technologies while conducting daily production at domestic factories as mother plants, and producing high-volume mass-produced goods at overseas factories. There are various perspectives on where to establish production bases, such as "local production for local consumption," "risk diversification," and "reshoring." In this document, we will assume a scenario where the same product is produced at both domestic and overseas factories, and we will examine a numerical decision-making example based on the question: "In order to improve the defect rate, which is more advantageous—increasing production at the domestic factory or reducing the defect rate at the overseas factory?" (It is assumed that the domestic factory has a relatively lower defect rate compared to the overseas factory).

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In the manufacturing industry, improving the workplace is very important. However, it is not realistic to tackle every improvement idea that comes to mind amidst the busy daily routine. So, how should we prioritize these improvements? A common approach is to consider factors such as "cost-effectiveness," "ease of implementation," and "the magnitude of the effects when implemented." While we might say, "Let's think in terms of cost-effectiveness!" the first stumbling block is often, "How do we concretely think about this in numerical terms?" In this document, I would like to examine an example of decision-making based on numbers, using the question, "Should we focus on equipment updates or personnel training to improve defect rates?" as a basis.

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When you start studying quality management, you will come across something called the "7 QC Tools." These are (1) check sheets, (2) Pareto charts, (3) cause-and-effect diagrams, (4) graphs, (5) scatter diagrams, (6) histograms, and (7) stratification. In this document, I will explain what a cause-and-effect diagram, one of the 7 QC tools, is, along with specific methods for creating it and how to interpret it.

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When you start studying quality management, you will come across something called the "7 QC Tools." These are (1) check sheets, (2) Pareto charts, (3) cause-and-effect diagrams, (4) graphs, (5) scatter diagrams, (6) histograms, and (7) stratification. In this document, we will explain what a scatter diagram, one of the 7 QC tools, is, along with specific methods for creating it and how to interpret it.

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When you start studying quality management, you will come across something called the "7 QC Tools." These are (1) check sheets, (2) Pareto charts, (3) cause-and-effect diagrams, (4) graphs, (5) scatter diagrams, (6) histograms, and (7) stratification. In this document, we will explain what control charts, which are one of the 7 QC tools, are, along with specific methods for creating and interpreting them.

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When you start studying quality control, you will come across something called the "Seven QC Tools." These are (1) check sheets, (2) Pareto charts, (3) cause-and-effect diagrams, (4) graphs, (5) scatter diagrams, (6) histograms, and (7) stratification. In this document, we will explain what a histogram, one of the Seven QC Tools, is, along with specific methods for creating it and how to interpret it.

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When you start studying quality management, you will come across something called the "7 QC Tools." These are (1) check sheets, (2) Pareto charts, (3) cause-and-effect diagrams, (4) graphs, (5) scatter plots, (6) histograms, and (7) stratification. In this document, I will explain what a Pareto chart, one of the 7 QC tools, is, along with specific methods for creating it and how to interpret it.

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Cutting processing using CAD CAM (Solid Works, Master CAM) is possible. Complex-shaped parts require considerable effort in programming machine tools. Additionally, manual input work can inevitably lead to mistakes. Our company automates the program creation process through CAD CAM, enabling high-quality and quick cutting processing. With over 70 years of experience since our founding, we have developed production technology through transactions with major companies in mass production. This allows us to establish a system where "early setup with CAD CAM ⇒ improvements by skilled employees (reducing cycle time through tools and program enhancements) ⇒ achieving manufacturing that balances quality and cost" is possible. **Our Features** 1. **Track Record with Major Manufacturers** We have numerous direct transactions with major manufacturers in gas equipment, kitchens, air conditioning, semiconductors, and medical-related fields. 2. **In-House Integrated Production System** Our extensive in-house processing technology enables a wide range of integrated production (hot forging, cutting processing, brazing, pipe processing, assembly, leak testing). 3. **Proposals Based on Product Shape and Processing Method** By reviewing from the design stage, there is potential for quality improvement and cost reduction.

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CNC machining using CAD CAM (Solid Works, Master CAM) is possible. Complex-shaped parts require considerable effort in programming machine tools. Additionally, manual input work can inevitably lead to mistakes. Our company has automated the programming process through CAD CAM, enabling high-quality and quick machining. With over 70 years of experience since our founding, we have developed production technology through our dealings with major companies in mass production, allowing us to establish a system that realizes "early setup with CAD CAM → improvements by skilled employees (reducing cycle time through tools and program enhancements) → achieving manufacturing that balances quality and cost." **Our Features** 1. Track record with major manufacturers We have numerous direct transactions with major manufacturers in gas equipment, kitchens, air conditioning, semiconductors, and medical-related fields. 2. In-house integrated production system We possess a wide range of processing technologies that allow for integrated production (hot forging, machining, brazing, pipe processing, assembly, leak testing). 3. Proposals based on product shape and processing methods By reviewing from the design stage, there is potential for quality improvement and cost reduction.

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