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  6. [Development Case] Cold Forging Inner Diameter Net Shaping

[Development Case] Cold Forging Inner Diameter Net Shaping

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last updated:Dec 26, 2025

ミヤマ精工
ミヤマ精工
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Achieving improved material yield through the elimination of cutting in inner diameter by increasing forging precision!

We would like to introduce a case study on the development of cold forging for inner diameter net shape. In conventional products, we relied on cutting processes, but the developed product implements cold forging plus cutting (for the outer diameter). The material yield improved from 26% for conventional products to 80% for the developed product. Please feel free to contact us when you need our services. 【Development Objectives】 ■ New Method: Cold forging for the cutting process ■ Improved Material Yield: Elimination of cutting for inner diameters due to enhanced forging precision ■ Novelty: Ultra-precise cold forging (industry-leading level) *For more details, please download the PDF or feel free to contact us.

    Processing Contract
内径ネットシェイプ.png

[Development Case] Cold Forging Inner Diameter Net Shaping

内径ネットシェイプ.png
内径ネットシェイプ.png
  • Related Link - https://www.miyama-grp.co.jp/
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[Development Case] Cold Forging Inner Diameter Net Shaping

[Development Case] Cold Forging Inner Diameter Net Shaping

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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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