机械科学与技术2024，Vol.43Issue(4)：619-627,9.DOI:10.13433/j.cnki.1003-8728.20220253
钛合金切削中切屑形态与残余应力的仿真与实验研究
Simulation and Experimental Study on Chip Morphology and Residual Stress in Cutting of Titanium Alloy
摘要
Abstract
As a common material in the aviation industry,the residual stresses of titanium alloy after machining can seriously affect the service life of the components.In this study,a finite element model based on the Coupled Eulerian-Lagrangian(CEL)method in the machining of titanium alloy was established,and the orthogonal experimental platform was used to obtain the chip morphology and residual stresses to verify the validity of the model.The present model was compared with the traditional Lagrangian and Arbitrary Lagrange-Eulerian(ALE)methods,the results show that although the CEL method takes a long time,the prediction results are more accurate without mesh distortion and have the best comprehensive performance.Finally,the present method was used to investigate the chip morphology and residual stresses on the machined surface under the different feeds and edge radius.The results show that the degree of chip serration and equivalent chip thickness increase with the increasing of feed and edge radius,and the residual stresses of surface become more compressive.关键词
钛合金/CEL仿真/切屑形态/残余应力Key words
titanium alloy/CEL model/chip morphology/residual stress分类
信息技术与安全科学引用本文复制引用
庄可佳,高金强,翁剑,张伟伟,周胜强..钛合金切削中切屑形态与残余应力的仿真与实验研究[J].机械科学与技术,2024,43(4):619-627,9.基金项目
国家自然科学基金项目(5217051047) （5217051047）
