5083铝合金搅拌摩擦焊搭接接头的力学性能
Mechanical Properties of Friction Stir Lap-Welding Joint of 5083 Aluminum Alloy
摘 要
对5083-H321铝合金板进行了搭接形式的搅拌摩擦焊, 研究了焊接速度对接头拉剪强度和硬度的影响。结果表明: 搅拌头转速为180 r·min-1,焊接速度为60 mm·min-1时, 可使焊接接头拉剪强度达到200 MPa以上, 第二道焊缝的热输入使第一道焊缝焊核区晶粒长大, 从而使其拉剪强度和硬度降低。
搭接焊
拉剪强度
friction stir welding
lap-welding
tensile shear strength
Abstract
5083-H321 aluminum alloy was welded by friction stir welding in the way of lap, and then the influence of the welding speed of on the tensile-shear strength and hardness of welded joint was studied. The results show that the tensile-shear strength of the welded joint could achieve above 200 MPa when the rotating speed of stirrer was 1 800 r·min and welding speed was 60 mm·min-1, the grains in weld seam of frist welding grew up due to the heat input of the second welding, which decreased tensile-shear strength and hardness.
中图分类号 TG453
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收稿日期 2010/10/26
修改稿日期 2011/7/27
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备注刘守法(1980-), 男, 河北沧州人, 讲师, 硕士。
引用该论文: LIU Shou-fa,SHI Zhang-jie. Mechanical Properties of Friction Stir Lap-Welding Joint of 5083 Aluminum Alloy[J]. Materials for mechancial engineering, 2011, 35(11): 82～84
刘守法,时张杰. 5083铝合金搅拌摩擦焊搭接接头的力学性能[J]. 机械工程材料, 2011, 35(11): 82～84
被引情况:
【1】刘守法,蔡云,吴松林, "不同形状搅拌头异种铝合金搅拌摩擦焊接头的性能",机械工程材料 38, 80-84(2014)
【2】刘守法,夏祥春,王晋鹏, "搅拌摩擦加工工艺制备ZrO2颗粒增强镁基复合材料的组织与力学性能",机械工程材料 40, 35-38(2016)
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参考文献
【1】DAWES C J.An introduction to friction stir welding and its development[J]. Welding ＆ Metal Fabrication,1995(1):12-16.
【2】RAJAMANIKAM N, BALUSAMY V, MADHUSUDHANNA G,et al. Effect of process parameters on thermal history and mechanical properties of friction stir welds [J]. Materials & Design,2009,30(7):2726-2731.
【3】刘萝威.轻合金焊接工艺在航空航天上的应用[J].航天技术,2002,4(2):49-52.
【2】RAJAMANIKAM N, BALUSAMY V, MADHUSUDHANNA G,et al. Effect of process parameters on thermal history and mechanical properties of friction stir welds [J]. Materials & Design,2009,30(7):2726-2731.
【3】刘萝威.轻合金焊接工艺在航空航天上的应用[J].航天技术,2002,4(2):49-52.
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