Distortion caused by residual stresses in machining aeronautical aluminum alloy parts: recent advances
Distortion caused by residual stresses in machining aeronautical aluminum alloy parts: recent advances
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DOI：
10.1007/s00170-016-9066-6
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发表时间：
2017-03-01
影响因子：
3.4
通讯作者：
Wang, Shu-qi
中科院分区：
文献类型：
--
作者：
Li, Jian-guang;Wang, Shu-qi
航空铝合金零件在加工过程中的变形是航空工业面临的严峻挑战之一，多工序产生的残余应力是造成航空铝合金零件变形的主要原因。为了全面了解铝合金复合材料加工中存在的残余应力和变形问题，本文综述了铝合金复合材料加工中残余应力的产生原因、加工过程中影响变形的因素、残余应力的测量方法、变形的预测和控制方法等方面的研究进展。阐述了材料内部本体残余应力和加工残余应力的产生机理，以及影响两种残余应力的因素。分析了残余应力和加工工艺条件对变形的影响。总结了常用的残余应力测量方法及其适用范围。重要的是，分析了各种预测方法的差异和优缺点。总结了加工前后控制变形的方法。最后，对航空制造中aap加工中的畸变问题进行了进一步的研究。
The distortion in machining aeronautical aluminum alloy parts (AAAPs) is one of the serious challenges in the aviation industry, and the residual stresses produced in multimanufacturing steps are the main cause. In order to get a comprehensive understanding of the problems about residual stresses and distortion in machining AAAPs, the state-of-the-art in several aspects including the generation reasons of residual stresses, the factors influencing distortion during machining, the measurement methods of residual stresses, the prediction and controlling methods of distortion are summarized in this paper. The generation mechanism of the bulk residual stress inner materials and the machining-induced residual stresses, as well as the factors affecting two kinds of residual stresses are stated. Also, the influences of residual stresses and machining process conditions on distortion are analyzed. Furthermore, the common residual stress measurement methods and its application scope are summarized. Significantly, the differences, advantages, and disadvantages of various prediction methods are analyzed. The methods of controlling distortion before and after machining are summarized. Finally, the paper gives out further research on the distortion in machining AAAPs in aeronautical manufacturing.