The predeformation process to decrease welding deformation is simulated by FEM and the method to determine predeformation value is given. The final deformation after welding is predicted.
利用有限元方法对预变形法减小焊接变形进行了模拟，给出了确定预变形大小的方法，并对最终的焊接变形进行预测。
The predeformation process to decrease welding deformation is simulated by FEM and the method to determine predeformation value is given. The final deformation after welding is predicted.
利用有限元方法对预变形法减小焊接变形进行了模拟，给出了确定预变形大小的方法，并对最终的焊接变形进行预测。
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