焊接工艺参数对焊接残余应力的影响
Effect of Welding Process Parameters on Welding Residual Stress
杨 坪1， 苏 威2
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作者单位：1.辽宁石油化工大学 机械工程学院，辽宁 抚顺 113001；2.辽河油田 油田建设工程二公司，辽宁 盘锦 124010
中文关键字：焊接残余应力；焊接电流；焊接速度
英文关键字： welding residual stress； welding current； welding speed
中文摘要：选取20G作为实验材料，采用埋弧自动焊焊接成试板，分别考察了焊接电流和焊接速度这两个焊接工艺参数对其焊接残余应力数值大小的影响。结果表明，焊接电流一定时，焊接残余拉应力随焊接速度增大而增大；焊接速度一定时，焊接电流越大，焊接残余拉应力越大。
英文摘要：Selecting 20G as experimental material, the effect of welding current and welding speed on welding residual stress were studied by using submerged arc welding. The results show that when the welding current is definite, the welding residual stress increases with the increase of welding speed, when the welding speed is definite, the welding residual stress increases with the increase of welding current.