在此基础上，进一步提出了一种用于预测角焊缝角变形的线弹性简化方法，即剪切固有应变法。
Furthermore, a new simplified elastic method called as inherent shear strain method is developed for forecasting fillet weld's angular distortion.
以T形焊接接头为算例，结合热弹塑性有限元法和映射应变分量法，研究了角焊缝角变形的产生机制。
The conception of deformation angle of helix pre-former is introduced and process parameters are analyzed with math regression method.
研究表明，T形接头的角变形沿焊缝长度方向是变化的。
Study showed that angle deformation of T joint is changed along the welded seam length.
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