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  6. [Development Case] Cold Forging of Difficult-to-Process Material SUS440C

[Development Case] Cold Forging of Difficult-to-Process Material SUS440C

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last updated:Dec 26, 2025

ミヤマ精工
ミヤマ精工
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A new method for cold forging of axisymmetric complex shapes! Cold forging of martensitic stainless steel.

We would like to introduce a case study on the development of cold forging for difficult-to-process material SUS440C. In the past, even if there were ideas for performance improvement in customer products, it was impossible to realize them due to the complex shapes that made machining difficult. (It was a different shaped product.) The developed product underwent cold forging and machining, resulting in improved product performance. Please feel free to contact us when you need assistance. 【Development Objectives】 ■ New Method: Cold forging of non-axisymmetric complex shapes ■ Product Performance Improvement: World-class performance of fuel injection systems ■ Novelty: Cold forging of martensitic stainless steel *For more details, please download the PDF or feel free to contact us.

    Processing Contract
難加工材SUS440C.png

[Development Case] Cold Forging of Difficult-to-Process Material SUS440C

難加工材SUS440C.png
難加工材SUS440C.png
  • Related Link - https://www.miyama-grp.co.jp/
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[Development Case] Cold Forging of Difficult-to-Process Material SUS440C

[Development Case] Cold Forging of Difficult-to-Process Material SUS440C

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ミヤマ精工

ミヤマ精工

Manufacturing and processing contract

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Our company, as a specialized manufacturer of precision parts for automobiles, has made diligent efforts in the production of functional components for fuel systems and electrical components, serving as a cooperative factory for top domestic manufacturers such as Toyota Motor Corporation, Aisin Seiki Co., Ltd., and Denso Corporation.

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