6005铝合金激光-MIG复合焊后超声冲击处理及其力学性能

来源 :2013年国际焊接结构疲劳断裂学术会议 | 被引量 : 0次 | 上传用户：jasmineonbridges

【摘要】

：

激光-MIG复合焊接是一种新型高效铝合金焊接方法.与传统熔化焊相似，激光-MIG复合焊接接头也存在残余应力问题，影响了接头力学性能及安全可靠性.本文采用超声冲击的方法对6005铝合金激光-MIG复合焊接接头进行焊后处理，并研究了超声冲击处理后接头的静态拉伸性能和疲劳性能，并采用X射线法测试了残余应力分布变化，结果表明由于超声冲击作用该善了铝合金焊接接头的残余应力分布，降低了应力峰值，焊接接头的疲劳

【作者】

：

朱宗涛李远星王秋影闫少华苟国庆陈辉

【机构】

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西南交通大学材料科学与工程学院,成都610031

【出处】

：

2013年国际焊接结构疲劳断裂学术会议

【发表日期】

：

2013年1期

【关键词】

：

激光-电弧复合焊 6005铝合金 X射线残余应力疲劳强度

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6005铝合金激光-MIG复合焊后超声冲击处理及其力学性能

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