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A study on working limit of cold forging of carbon steel
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 Title & Authors
A study on working limit of cold forging of carbon steel
Jae, Jin-Soo; Kang, Jong-Hun; Kang, Seong-Soo;
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 Abstract
The purpose of this work is to investigate the working limit of carbon steel and forging condition of cold forging. The fracture criteria which was proposed by Oyane and Osakada was used. Compression test, hardness study and tension test by Oyane's creteria, microstructure study by Osakada's were carried out. The results were compared with each other. It was found that working limit on compressive hydrostatic stress is increased in comparison with that of tensile stress field and can be forecasted the fracture limit of closed cold forging.
 Keywords
Cold Forging;Closed Forging;Working Limit;Fracture Strain;Ductile Fracture;hydrostatic Stress;
 Language
Korean
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