Transactions of Materials and Heat Treatment

Title：Wear analysis on hot stamping die for automobile panel based on Archard theory

Authors： Zheng Xiaohui

Unit： Xinxiang Vocational and Technical College

KeyWords： Archard wear theory hot stamping orthogonal experimental die wear wear depth

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2021,46(11):150-154

Abstract：

For a certain automobile panel, based on the theories of Archard wear and plastic forming, the thermo-mechanical coupling simulation for hot stamping process of plate was conducted by software DEFORM-3D, and the wear condition of die surface was simulated. Through analysis, it is found that the die wear is much larger than that of the punch, and the service life is shorter. According to the simulation results, the key factors affecting the die wear were discussed. On the premise of ensuring the quality of stamping panel and maintaining the wear of punch, taking the reduction of the surface wear of die as object, the influences of various factors on the wear depth of die working surface were studied by orthogonal test method, and the optimization was carried out. In addition, the optimal combination of parameters was simulated and tested, and compared with the results before optimization. The results show that the optimized die wear results are close to the actual die test results and are significantly improved compared with the results before optimization, and the optimal combination of parameters is as follows: the die preheating temperature is 350 ℃, the billet initial temperature is 500 ℃, the stamping speed is 15 mm·s-1 and the die hardness is 63 HRC. Thus, the finite element simulation technology can effectively guide the design and reduce the cost of die test.

Funds：

河南省高等职业院校创新发展项目（RW-28）

作者简介：郑小慧（1986-），女，学士，讲师，E-mail：xixisheng147@126.com

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