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简述焊接残余应力产生的因素。

问答题
2022-03-11 17:04
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正确答案

焊接残余应力的产生有三个因素:一是钢材本身有热胀冷缩的性质,而且随温度的升高钢材屈服强度降低;二是钢材在焊接过程中受到了不均匀的热过程;三是钢材的伸缩受到外界或内部的约束。


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