Transactions of Materials and Heat Treatment

Title：Research on stress and fatigue life for blanking punch of strap

Authors： Xu Min Jiang Hailin

Unit： Xuzhou College of Industrial Technology Huaiyin Institute of Technology

KeyWords： strap blanking punch fatigue life numerical simulation clutch

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(10):145-149

Abstract：

For elastic parts of strap in automobile clutch, the finite element model of fatigue analysis for blanking punch was established, and the stress distribution and fatigue life of blanking punch for strap were simulated by software ANSYS Workbench. The simulation results show that the maximum stress at the transition fillet reduces from 1109.2 MPa to about 1058.6 MPa by using punch with improved structure, and the fatigue life of punch increases from 75715 times to 120400 times. However, when the punch with improved structure is used to the progressive die to produce strap, its fatigue life is 107493 times, and the relative error between simulated value and experimental value is 10.72%. Therefore, the correctness of numerical simulation is verified. In addition, the blanking punch of strap with improved structure is standardized, and it has an important guiding significance on the progressive die design for strip.

Funds：

连云港市中小企业技术创新项目(CK1411)

作者简介：徐敏（1982-），男，硕士，讲师，E-mail：375926248@qq.com

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