| 焊接参数对LY12铝合金FSW焊缝S曲线形成的影响 |
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| 引用本文： | 邢丽,陈爱华,刘鸽平,柯黎明. 焊接参数对LY12铝合金FSW焊缝S曲线形成的影响[J]. 焊接学报, 2010, 31(5): 9-12 |
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| 作者姓名： | 邢丽 陈爱华 刘鸽平 柯黎明 |
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| 作者单位： | 南昌航空大学轻合金加工科学与技术国防重点学科实验室,南昌,330063 |
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| 基金项目： | 国家自然科学基金资助项目，航空科学基金资助项目，航空科学基金资助项目 |
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| 摘 要： | 在铝合金中镶嵌标识材料进行搅拌摩擦焊试验,分析了焊缝中S曲线的形成原因;并用圆锥光面搅拌针的搅拌头,研究了焊接工艺参数对LY12铝合金焊缝中S曲线形貌的影响.结果表明,焊缝中S曲线是原始界面与其周边金属一起位移、变形的结果;S曲线的形状取决于焊缝上部金属的旋转运动、搅拌针与原焊接面之间的相互作用以及焊缝底部金属朝远离焊缝中心线的方向和板材上方移动的综合作用.对于圆锥光面搅拌针,当焊接速度一定时,增大搅拌头的旋转速度;或当搅拌头旋转速度一定时,降低焊接速度,S曲线在焊缝厚度方向的贯穿区域减小并最终消失.
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| 关 键 词： | 搅拌摩擦焊 S曲线 焊接工艺参数 |
| 收稿时间： | 2009-06-01 |
Effects of welding parameters on formation of lazy S weld in friction stir welding of LY12 Al-alloy |
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| XING Li,CHEN Aihu,LIU Geping and KE Liming. Effects of welding parameters on formation of lazy S weld in friction stir welding of LY12 Al-alloy[J]. Transactions of The China Welding Institution, 2010, 31(5): 9-12 |
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| Authors: | XING Li CHEN Aihu LIU Geping KE Liming |
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| Affiliation: | XING Li,CHEN Aihua,LIU Geping,KE Liming(Key Disciplines Laboratory of Light Alloy Processing Science and Technology,Nanchang Hangkong University,Nanchang 330063,China) |
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| Abstract: | The formation of lazy S weld in the friction stir welding of LY12 aluminum alloy was analyzed by the copper foils as a tracer material in the alloy.The influence of the welding pa-rameters on the formation of lazy S weld was investigated with a conical pin tool.The results show that lazy S weld is formed by the distortion of the original weld interface and its surrounding metal.The shape of the lazy S weld depends on the cooperation of the rotation of the upper part metal in the weld,the interaction between... |
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| Keywords: | friction stir weld lazy S welding parameters |
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