基于残余应力的弱刚度结构件加工变形分析

江汉大学学报（自然科学版） ›› 2015, Vol. 43 ›› Issue (3): 234-241.

基于残余应力的弱刚度结构件加工变形分析

胡吉成¹，刘冠成²，王瑞显²

1. 荆州理工职业学院，湖北荆州 434000；2. 北京理工大学机械与车辆学院，北京 100081

出版日期:2015-06-28 发布日期:2015-07-02
作者简介:胡吉成（1964—），男，讲师，研究方向：机械设计与教学。

Analysis of Machining Distortion of Weak-Rigidity Parts Based on Residual Stress

HU Jicheng¹， LIU Guancheng²， WANG Ruixian²

1. Jingzhou Vocational College of Technology， Jingzhou 434000，Hubei，China；2. School of Mechanical Engineering，Beijing Institute of Technology， Beijing 100081，China

Online:2015-06-28 Published:2015-07-02

摘要/Abstract

摘要： 在加工过程中产生的残余应力容易导致弱刚度结构件变形，因此，研究残余应力对加工变形的影响规律具有十分重要的意义。针对外轮毂，建立了弱刚度结构件切削加工过程的有限元模型，通过分析不同切削参数产生的残余应力沿工件深度方向的分布规律，得到了切削参数对残余应力的影响规律，并通过实验验证了仿真结果的准确性。最后，通过分析不同切削参数产生的残余应力导致的加工变形，得到了残余应力对加工变形的影响规律，为加工工艺的优化提供了理论基础。

关键词: 弱刚度结构件, 残余应力, 加工变形

Abstract: The cutting induced residual stress of weak-rigidity parts has great influence on part distortion because of the weak rigidity and large material removal. So，the study of influence of residual stress on machining distortion is of momentous significance. The finite element model（FEM）of hub brake cap cutting process is established. The influence rules of the cutting parameters on the residual stress are obtained with the analysis of the residual stress distribution along with the depth of the workpiece caused by different cutting parameters. The rules are validated by experiments. At last，the influence rules of the residual stress on the machining distortion are obtained by the analysis of the machining distortion due to residual stress induced by different cutting parameter，which provide the basis of machining process optimization.

Key words: weak-rigidity parts, residual stress, machining distortion

中图分类号:

TB302
TH16

胡吉成，刘冠成，王瑞显. 基于残余应力的弱刚度结构件加工变形分析[J]. 江汉大学学报（自然科学版）, 2015, 43(3): 234-241.

HU Jicheng， LIU Guancheng， WANG Ruixian. Analysis of Machining Distortion of Weak-Rigidity Parts Based on Residual Stress[J]. Journal of Jianghan University(Natural Science Edition), 2015, 43(3): 234-241.