异种铝合金搅拌摩擦点焊工艺研究

宇航材料工艺 , 2015, 45(1): 66-68. doi: 10.3969/j.issn.1007-2330.2014.01.017

异种铝合金搅拌摩擦点焊工艺研究

尹玉环 ^1, , 郭立杰 ^2, , 胡绳荪 ^3, , T.H.North ^4,

1.上海航天设备制造总厂,上海,200245

2.上海航天设备制造总厂,上海,200245

3.天津大学材料科学与工程学院,天津,300072

4.多伦多大学材料科学与工程学院 M5S 3E4

关键词：搅拌摩擦点焊 , 铝合金 , 搅拌针长度 , 力学性能 , HOOK

Research on Friction Stir Spot Welding of Dissimilar Aluminum Alloys

Keywords： Friction stir spot welds , Al-alloys , Pin length , Mechanical properties , HOOK

研究了搅拌针长度对Al5754/Al6111搅拌摩擦点焊接头力学性能的影响.结果表明,在保持轴肩压入深度为500 μm条件下,搅拌针长度从1.6 mm增加到2.0 mm的过程中,点焊接头的力学性能无明显变化;当搅拌针长度继续增加到2.2 mm时,点焊接头的力学性能迅速提高.通过分析提出高度锯齿状的HOOK形貌是点焊接头力学性能提高的主要原因.

参考文献

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材料期刊网

异种铝合金搅拌摩擦点焊工艺研究

Research on Friction Stir Spot Welding of Dissimilar Aluminum Alloys

参考文献