锻压技术

传动片冲裁凸模所受应力与疲劳寿命的研究

英文标题：Research on stress and fatigue life for blanking punch of strap

作者：徐敏姜海林

分类号：TG386

出版年,卷(期):页码：2017,42(10):145-149

摘要：

以汽车离合器中的弹性零件传动片为研究对象，建立传动片冲裁凸模疲劳分析的有限元模型，利用ANSYS Workbench有限元软件模拟了传动片冲裁凸模的应力分布状况及疲劳寿命。数值模拟结果表明，采用结构改善后的凸模，使得过渡圆角区域的最大应力值由1109.2 MPa减小为1058.6 MPa，凸模的疲劳寿命由75715次提高到120400次。借助冲压级进模得知,结构改善后冲裁凸模的疲劳寿命试验值为107493次，与模拟值之间的相对误差为10.72%，从而验证了数值模拟的正确性。此外，基于改善后凸模结构对传动片冲裁凸模进行标准化，其对企业传动片冲压级进模的设计具有重要的指导意义。

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.

基金项目：

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

参考文献：

[1]彭桂枝. 汽车离合器传动带冲压成形工艺参数的优化[J]. 锻压技术, 2016, 41(3): 144-147.

Peng G Z. Optimization of stamping process parameters for clutch strap of automobile[J]. Forging & Stamping Technology, 2016, 41(3): 144-147.

[2]刘奎武, 边巍. 离合器传动带成形回弹的研究[J]. 锻压技术, 2015, 40(7): 38-42.

Liu K W, Bian W. Study on springback of forming for transmission belt of clutch[J]. Forging & Stamping Technology, 2015, 40(7): 38-42.

[3]彭志, 周勇. CAD/CAE技术在模具概念设计中的应用[J]. 模具技术, 2004, (50): 11-15.

Peng Z, Zhou Y. Application of CAD/CAE technology in die conceptual design[J]. Die & Mould Technology, 2004, (50): 11-15.

[4]李兵, 何正嘉, 陈雪峰. ANSYS Workbench设计、仿真与优化[M]. 北京：清华大学出版社, 2008.

Li B, He Z J, Chen X F. Design, Simulation and Optimization of ANSYS Workbench[M]. Beijing: Tsinghua University press, 2008.

[5]吕志鹏, 马秀花, 周思柱. 基于ANSYS的阶梯式斜端面组合凹模CAE分析[J]. 锻压技术, 2012, 37(1): 114-116.

Lyu Z P, Ma X H, Zhou S Z. CAE analysis of staged oblique end combined cavity die based on ANSYS [J]. Forging & Stamping Technology, 2012, 37(1): 114-116.

[6]朱里红, 韦洁. 提高厚钢板小孔冲裁质量的工艺参数优化[J]. 锻压技术, 2015, 40（8）: 140-143.

Zhu L H, Wei J. Optimization on process parameters for improving the quality of small hole punching on thick steel plate[J]. Forging & Stamping Technology, 2015, 40（8）: 140-143.

[7]刘静, 张明, 陈浩. 基于响应面法的台阶式凸模冲裁工艺参数优化[J]. 塑性工程学报, 2016, 23(3): 52-57.

Liu J, Zhang M, Chen H. Parameters optimization of stepshapedpunch blanking based on response surface method[J]. Journal of Plasticity Engineering, 2016, 23(3): 52-57.

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