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Article: Combining hot and cold forging.
- Article from:
- Tooling & Production
- Article date:
- December 1, 1991
- Author:
CopyrightCOPYRIGHT 1991 Nelson Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The combination of hot and cold forging can significantly improve part quality and tolerances over hot forging alone. Hot forging is ideally suited for high-volume production, but seldom produces parts ready for assembly because of temperature influences on tolerances. Hot-forged parts are routinely coined at ambient temperature to improve their dimensional accuracy in certain areas. However, this coining is usually limited by high forming pressures to hitting relatively small surface areas. By combining hot and cold forging procedures, it is possible to produce parts that are either partially or completely "assembly ready."
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