The methods of welding distortion prediction are largely based on finite element analysis.

焊接变形预测方法大都基于有限元分析。

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The prediction and controlling of welding distortion and residual stress is still a very important project in the industry.

焊接变形和残余应力的预测和控制至今仍然是工业生产中需要解决的重要课题。

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So, it has great academic and engineering value for the prediction and improvement of Aeronautical thin-wall components machining distortion.

因此，实现航空薄壁件加工变形的预测和控制具有重大的理论意义和工程应用价值。

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