Transactions of Materials and Heat Treatment

Title：Life analysis on pre-forging die for shifting fork based on Archard theory

Authors： Lu Yuansan Li Yingying Wang Peian

Unit： Hunan Financial & Industrial Vocational-technical College Shangqiu Institute of Technology

KeyWords： shifting fork die life hot forging wear amout Archard theory orthogonal test

ClassificationCode：TG376.2

year,vol(issue):pagenumber：2020,45(8):164-169

Abstract：

In order to predict the service life of pre-forging die for shifting fork, based on numerical simulation and Archard theory, the main areas of die wear during the hot forging process of shifting fork and the causes of wear were analyzed, and the region with severe wear of pre-forging die was optimized by the orthogonal test. Then, according to the relationship between the single optimal wear amount and the total wear amount in the region with severe wear of pre-forging die, the mathematical fitting formula was established to solve. The simulation results show that during the hot forging process, the most severe position of die wear is in P4 area, and the optimal process parameters combination for the die wear amount in the P4 area is A1B2C3D3. Furthermore, it is not just a simple linear relationship between the total wear amount of shift forking and the single wear amount which is proved by establishing the functional relationship between the die wear amount in P4 area and the forging times, and the summation formula of the forging times and the total die wear amount for shifting fork die are proposed to obtain that the life of pre-forging die for shifting fork is 92130 times. Thus, the simulation results effectively improve the success rate of research and development in the actual production of shifting fork and reduce the cost of trial production.

Funds：

湖南省教育科学研究项目（15C0152）；衡阳市科技局项目（016KG48）

陆元三(1971-)，男，学士，副教授，E-mail：3450423480@qq.com；通讯作者：王培安(1990-)，男，硕士，助教，E-mail：1694661207@qq.com

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