22mm 6061-T6铝合金板的搅拌摩擦焊接  

Friction Stir Welding of 22 mm Plate of 6061-T6 Aluminum Alloy

作　　者：罗维[1] 贺地求[1] 邬红光[1] 许翔[1] 

机构地区：[1]中南大学现代复杂装备设计与极端制造教育部重点实验室,湖南长沙410083

出　　处：《热加工工艺》2010年第15期130-132,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(50675228)

摘　　要：采用搅拌摩擦焊(FSW)方法对厚度为22mm的6061-T6铝合金板进行单道对接焊实验,并对焊缝的力学性能和微观组织进行了分析。结果表明,用FSW方法焊接22mm厚的6061-T6铝合金板可得到成形美观、内部无缺陷的平板对接接头。在旋转速度为1000r/min、焊接速度为120mm/min时,其焊接接头的σb=205MPa,为母材强度的66%。6061-T6 aluminum alloy plate with 22 mm thickness was connected by FSW,the micro-structure,mechanical property of the welded joint were analyzed.The results demonstrate that the welded joint with good appearance and detect-free in the inner can be obtained under optimum joining conditions.When the rotating speed is 1000 r/min and the welding speed is 120 mm/min,the tensile strength of the welded joint reaches 205 MPa,approaches to 66% that of the matrix material.

关 键 词：搅拌摩擦焊 6061-T6铝合金 厚板 力学性能 

分 类 号：TG453.9[金属学及工艺—焊接]