Finite Element Simulation of Residual Stresses in Cryogenic Machining of AZ31B Mg Alloy

被引：38

作者：

Pu, Z. ^{[1
]}

Umbrello, D. ^{[2
]}

Dillon, O. W., Jr. ^{[1
]}

Jawahir, I. S. ^{[1
]}

机构：

[1] Univ Kentucky, ISM, Lexington, KY 40506 USA

[2] Univ Calabria, Dept Mech Energy & Management Engn, I-87036 Arcavacata Di Rende, CS, Italy

来源：

2ND CIRP CONFERENCE ON SURFACE INTEGRITY (CSI) | 2014年 / 13卷

关键词：

cryogenic machining; finite element modeling; biodegradable implants; residual stresses; SURFACE; PERFORMANCE;

D O I：

10.1016/j.procir.2014.04.048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium alloys are lightweight materials primarily used in transportation industry, and are also emerging as a potential material for biodegradable fixation implants. However, unsatisfactory corrosion resistance largely limits the application of these materials. Residual stresses were reported to have significant influence on corrosion resistance of Mg alloys. In this study, a finite element model was developed to simulate the residual stresses in cryogenic machining of AZ31B Mg alloy. After calibration using experimental data, numerical simulations were conducted to study the influence of cutting edge radius and cooling method (dry vs. cryogenic) on residual stresses. The model can be used to establish proper cutting conditions to induce compressive residual stresses to enhance the corrosion resistance of Mg alloys. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：282 / 287

页数：6

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