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首页> 外文期刊>Journal of Materials Engineering and Performance >Optimization and Prediction of Angular Distortion and Weldment Characteristics of TIG Square Butt Joints
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Optimization and Prediction of Angular Distortion and Weldment Characteristics of TIG Square Butt Joints

机译：TIG方形对接接头角变形和焊接特性的优化与预测

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摘要

Autogenous arc welds with minimum upper weld bead depression and lower weld bead bulging are desired as such welds do not require a second welding pass for filling up the upper bead depressions (UBDs) and characterized with minimum angular distortion. The present paper describes optimization and prediction of angular distortion and weldment characteristics such as upper weld bead depression and lower weld bead bulging of TIG-welded structural steel square butt joints. Full factorial design of experiment was utilized for selecting the combinations of welding process parameter to produce the square butts. A mathematical model was developed to establish the relationship between TIG welding process parameters and responses such as upper bead width, lower bead width, UBD, lower bead height (bulging), weld cross-sectional area, and angular distortions. The optimal welding condition to minimize UBD and lower bead bulging of the TIG butt joints was identified.
机译：需要具有最小的上部焊缝凹陷和下部的焊缝隆起的自生弧焊，因为这样的焊缝不需要第二焊接道次来填充上部焊缝凹陷（UBD），并且其特征在于最小的角度变形。本文介绍了TIG焊接结构钢对接接头的角度变形和焊接特性（例如上焊缝凹陷和下焊缝凸出）的优化和预测。利用实验的全因子设计来选择焊接工艺参数的组合以产生方形对接。开发了数学模型以建立TIG焊接工艺参数与响应之间的关系，例如上焊道宽度，下焊道宽度，UBD，下焊道高度（凸起），焊缝横截面积和角度变形。确定了最佳焊接条件，以最大程度地减小UBD和降低TIG对接接头的焊缝凸起。

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