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  6. What is straightness for molds? An explanation of the basics!

What is straightness for molds? An explanation of the basics!

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last updated:Dec 18, 2025

松井製作所
松井製作所
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Contributing to the improvement of mold shaping accuracy!

In the mold industry, ensuring the dimensional accuracy of products makes the straightness of the mold crucial. Particularly when manufacturing high-precision products, even slight distortions in the mold can significantly affect product quality. Poor straightness can lead to molding defects or product malfunctions. This video explains the basics of "straightness," a type of geometric tolerance. 【Usage Scenarios】 - During mold design and manufacturing - During quality control of molded products - During troubleshooting related to straightness 【Benefits of Implementation】 - A deeper understanding of straightness in mold design and manufacturing. - Contributes to the improvement of molded product quality. - Enhanced problem-solving abilities related to straightness.

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【幾何公差】真直度とは?

What is straightness for molds? An explanation of the basics!

【幾何公差】真直度とは? サムネイル用.jpg
【幾何公差】真直度とは? サムネイル用.jpg
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【Features】 - Explanation of the definition of straightness - Explanation of how to indicate straightness - Explanation of its usage in drawings - Explanation of points to note when using it 【Our Strengths】 Matsui Manufacturing Co., Ltd. offers a consistent production system from hot forging to machining, pipe bending, brazing, and unit assembly, primarily focusing on non-ferrous metals such as copper, brass, and aluminum. We propose suitable QCD (Quality, Cost, Delivery) to our customers from our production bases located in four locations both domestically and internationally (Osaka, Tottori, Himeji, and China). We also produce educational videos related to manufacturing on YouTube.

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Gas appliances, air conditioning equipment, medical devices, semiconductor-related items, etc.

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Company Overview: Matsui Manufacturing Co., Ltd.

Company Overview: Matsui Manufacturing Co., Ltd.

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松井製作所

松井製作所

Ferrous/Non-ferrous metals

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Matsui Manufacturing Co., Ltd. focuses on non-ferrous metals such as copper, brass, and aluminum, offering a consistent production system from hot forging to machining, pipe bending, brazing, and unit assembly. We propose suitable QCD (Quality, Cost, Delivery) to our customers from our four production bases located in Japan and abroad (Osaka, Tottori, Himeji, and China). Since our establishment in 1948 as a manufacturer of gas appliance parts, we have developed and manufactured various control devices related to gas appliances, petroleum, water, and air conditioning, marking half a century of history with the motto of "Customer First." We will continue to acquire advanced technologies, promote flexible thinking that breaks away from conventional concepts, and not only respond to user needs but also proactively propose solutions that anticipate the needs of end users. We look forward to your continued guidance and support.

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