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research-article

Efficient multiscale modeling and validation of residual stress field in cutting

[+] Author and Article Information
F. Wang

Dept. of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USASchool of Mechanical Engineering, Shandong University, Jinan 250061, China
wangfuzeng1987@163.com

Z.Y. Liu

Dept. of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
sddxzsb@gmail.com

Y.B. Guo

Dept. of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
yguo@eng.ua.edu

Jun Zhao

School of Mechanical Engineering, Shandong University, Jinan 250061, China
zhaojun@sdu.edu.cn

Zhanqiang Liu

School of Mechanical Engineering, Shandong University, Jinan 250061, China
melius@sdu.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4036714 History: Received December 01, 2016; Revised April 28, 2017

Abstract

Residual stress has significant impact on product performance, it is imperative to predict residual stress for cutting process optimization. However, conventional process modeling approaches are limited to only single cutting pass on very short length and time scales due to the exceedingly high computational cost. This work provides a new concept of equivalent loading which enables an efficient modeling approach to predict residual stress in a practical machined surface by incorporating multiple cutting passes and crossing different length and time scales. The predicted residual stress profiles are validated in turning Inconel 718 superalloy under different edge geometries and process conditions.

Copyright (c) 2017 by ASME
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