摘要
在焊接时 ,由于焊接热源的加热和焊接热过程的特点 ,焊件受到不均匀的加热 ,使得被焊金属受热膨胀及冷却收缩的程度不同 ,在焊件内部就产生了应力和变形。论述焊接应力。
Because effects of welding heat source and the character of welding heat during weld, to cause nonuniform heat, to expand and contract, to produce stress and denaturation. This paper points producing reasons of welding stress and denaturation and preventive measures.
出处
《煤矿机械》
北大核心
2003年第7期59-60,共2页
Coal Mine Machinery
关键词
焊接
焊接应力
焊接变形
welding
welding stress
welding denaturation
