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《China Mechanical Engineering》 2004-13
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Sources and Control of Machining Distortions in Large Integral Structures

Kang Xiaoming 1 Sun Jie 2 Su Caimao 2 Ke Yinglin 2 1.Shanghai Jiaotong University,Shanghai,200030 2.Zhejiang University,Hangzhou,310027  
The mechanism of large integral structure machining distortions was analyzed. Two examples were given to show the sources of workpiece distortions: the release of residual stresses from the removed portion of the blank and the effect of machining-induced stresses. The solutions to this problem,including the relief of residual stresses in the blank, the application of high speed machining and the optimization of machining process, were presented. The relationship of several kinds of curvatures during the straightening process of a large integral structure was proposed.
【Fund】: 国家自然科学基金资助项目 ( 5 0 175 10 2 )
【CateGory Index】: V262
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