电焊机2012，Vol.42Issue(4)：54-57,4.
铝合金搅拌摩擦焊接头残余应力测试分析
Test of residual stresses for the joint of aluminum alloy friction stir welding
摘要
Abstract
In this paper,the residual stresses for friction stir welded 2 mm thick 6061-T5 aluminum alloy sheets had been investigated by using mathar method.The residual stresses perpendicular and parallel to the weld-path were measure respectively .The results showed that the residual stresses both perpendicular and parallel to the weld-path are all compressive stress,and the value of compressive stress become bigger as the depth of little hole increases.Additionally,both the compressive stresses are shown periodic distribution, and the periods of advancing side are smaller than the retreating side's.The residual stresses of weld joint two sides is not symmetrical,and retreating side residual stresses is higher,which the maximum are 93 MPa and 100 MPa respectively which present to the edge of shoulder.关键词
搅拌摩擦焊接/小孔释放法/残余应力Key words
friction stir welding/mathar method/residual stress分类
矿业与冶金引用本文复制引用
魏艳妮,李京龙,黄甫,李雪飞..铝合金搅拌摩擦焊接头残余应力测试分析[J].电焊机,2012,42(4):54-57,4.基金项目
西北工业大学科技创新基金资助项目(2007KJ01006) （2007KJ01006）
