Simulation Study on the Mechanism of Particle Failure and Surface Defect Formation in Machining of SiCp / Al Composites

被引：0

作者：

Fang Y. ^{[1
,2
]}

Wang Y. ^{[1
,2
]}

Zhang P. ^{[3
]}

Luo H. ^{[1
,2
]}

机构：

[1] School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong, Qingdao

[2] Key Lab of Industrial Fluid Energy Conservation and Pollution Control, Ministry of Education, Shandong, Qingdao

[3] School of Mechanical and Power of Engineering, East China University of Science and Technology, Shanghai

来源：

Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 13期

基金：

中国国家自然科学基金;

关键词：

finite element simulation; particle failure mechanism; SiC[!sub]p[!/sub] / Al composites; tool-particle relative position;

D O I：

10.11896/cldb.21010146

中图分类号：

学科分类号：

摘要：

In order to reveal the mechanism of SiC particle failure and the effect of particle failure on the microscopic morphological defects of SiCp / Al composites during cutting, a finite element model of single-particle SiCp / Al composites was established, and the process of particle failure and surface defect formation under different tool-particle relative positions and cutting speeds were investigated. With the stress field analyzed, particle failure process and tool-particle contact force, it is found that the relative tool-particle position has a significant effect on SiC particle failure, stress field and tool-particle contact force, that there are various forms of particle failure which affects the formation of surface defects on machined surfaces, and that the cutting speed has little influence on the evolution of particle failure and tool-particle contact force. The simulation results show good agreement with the surface morphology obtained from experiments. The various types of particle failure are explained by differences in stress fields and tool-particle contact forces at different tool-particle relative positions. © 2022 Cailiao Daobaoshe/ Materials Review. All rights reserved.

引用

共 35 条

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