22 mm 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
罗 维， 贺地求， 邬红光， 许 翔
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作者单位：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
中文关键字：搅拌摩擦焊； 6061-T6铝合金； 厚板； 力学性能
英文关键字： friction stir welding; 6061-T6 aluminum alloy; thick plate; mechanical properties
中文摘要： 采用搅拌摩擦焊（FSW）方法对厚度为22 mm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22 mm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1000 r/min、焊接速度为120 mm/min时，其焊接接头的σb＝205 MPa，为母材强度的66%。
英文摘要：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.