Research on Cutting Residual Stresses Based on Thermo-mechanical Coupling

被引：1

作者：

Xu, Y. Q. ^{[1
]}

Li, S. J. ^{[1
]}

Zhang, T. ^{[1
]}

Yang, X. H. ^{[1
]}

机构：

[1] NW Polytech Univ, Sch Mech & Elect Engn, Xian 710072, Shanxi, Peoples R China

来源：

ADVANCES IN MATERIALS MANUFACTURING SCIENCE AND TECHNOLOGY XIII, VOL II: MODERN DESIGN THEORY AND METHODOLOGY, MEMS AND NANOTECHNOLOGY, AND MATERIAL SCIENCE AND TECHNOLOGY IN MANUFACTURING | 2009年 / 628-629卷

关键词：

machining; residual stress; thermo-mechanical coupling; finite element;

D O I：

10.4028/www.scientific.net/MSF.628-629.651

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mathematical models of basic parameters, force and thermal parameters of cutting were obtained by applying the thermo-elastic-plastic theory and the heat-balance theory, according to the principle of residual stress generation in cutting process. Based on the 2D Finite element model of chip molding with separation surface, the direct way was applied in thermo-mechanical coupling, and residual stress of cutting GH4169 were simulated and analyzed by finite element. The results showed that the residual stresses are changed from tensile to compressive with the development of depth away from the workpiece surface. Also its values are changed according to a certain rule as varying the cutting speed. These provide a foundation for the control of cutting quality of workpiece.

引用

页码：651 / 656

页数：6

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