Paper Title:
Numerical Simulation of the Machining Distortion of Aircraft Aluminum Part Caused by Redistribution of Residual Stress
  Abstract

In order to reduce the weight of airplane and increase its mechanical behaviors, more and larger integrated parts are applied in modern aviation industry. When machining multi-frame aeroplane parts, more than 90% of the materials would be removed, resulting in severe distortion of the parts due to the weakened rigidity and the release of residual stress. This might also lead to stress concentration and damage of the parts. The effect of material removal from residually stressed billet is simulated using FEA software ANSYS, and the causations of distortion is analyzed. To verify the finite element simulation, a high speed milling test on aluminum alloy 7050T7351 is carried out. The results show that the simulation result is consistent with the experimental one. It included that the original residual stress in the blocks of aero-aluminum component is one of key factors to cause machining distortion.

  Info
Periodical
Edited by
Hun Guo, Zuo Dunwen, Tang Guoxing
Pages
122-125
DOI
10.4028/www.scientific.net/AMR.142.122
Citation
Y. W. Liu, "Numerical Simulation of the Machining Distortion of Aircraft Aluminum Part Caused by Redistribution of Residual Stress", Advanced Materials Research, Vol. 142, pp. 122-125, 2011
Online since
October 2010
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: T. Je, J. Lee, Doo Sun Choi, E. Lee, B. Shin, K. Whang
453
Authors: Shu Huang, Jian Zhong Zhou, Yi Bin Chen, C.D. Wang, X.D. Yang, Y.C. Dai
Abstract:An appropriate finite element analytical model for laser compound forming (LCF) was established with ABAQUS code, and then some key technical...
3857
Authors: Jun Zhan, Gui Min Chen, Xiao Fang Liu, Qing Jie Liu, Qian Zhang
Abstract:Gyroscope is the core of an inertia system and made by machining process. Machining process imports large residual stress. The residual...
838
Authors: Jie Chen
Chapter 1: Advanced Material Technology
Abstract:When machining multi-frame complex components, more than 90% of the materials would be removed, resulting in severe distortion of the parts...
143
Authors: Liang Chu, Li Jun Shi, Yan Bi, Da Sen Bi
Abstract:In this paper, the nosing process of metal tube with a conical die is investigated using the finite element method, and a series of...
1444