Using Soft Material as Die during Hot Forging

Fang Sung Cheng; Yi Sheng Chen

doi:10.4028/www.scientific.net/AMM.479-480.30

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 479-480Using Soft Material as Die during Hot Forging

Using Soft Material as Die during Hot Forging

Abstract:

This study introduces a new forming concept for hot forging by using soft die. The soft die (AISI1050) was employed not only to heating the billet, but also to forming the billet. In this proposed method, the soft die can be used as the electrode to raise the temperature of billet directly by resistance heating. The temperature of the billet is higher; the flow stress of the billet is become lower. Then the billet is easier to press into the cavity of the soft die. In addition, the soft die itself could not be heated by the electrifying and the temperature raise of soft die was occurred by the heat transfer from the heated billet. Therefore, the soft die can be carried out on hot forging process, and to achieve the purpose of forming. The result of experiments shows that the billet could be heated quickly to 1000°C in about 5 seconds, and a spur gear was successfully formed. With the proposed method, it was simple enough to hot forging high-alloy metals with poor workability.

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Periodical:

Applied Mechanics and Materials (Volumes 479-480)

Pages:

30-34

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.479-480.30

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Online since:

December 2013

Authors:

Fang Sung Cheng, Yi Sheng Chen

Keywords:

Direct Heating within Die, Hot Forging, Resistance Heating, Soft Die

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