| 一种搅拌头轴肩临界值的计算方法 |
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| 引用本文： | 祝宗煌,左立生,李泽阳,左敦稳.一种搅拌头轴肩临界值的计算方法[J].机械制造与自动化,2021,50(1):66-69. |
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| 作者姓名： | 祝宗煌 左立生 李泽阳 左敦稳 |
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| 作者单位： | 南京航空航天大学 机电学院,江苏 南京210016;南京航空航天大学 机电学院,江苏 南京210016;南京航空航天大学 机电学院,江苏 南京210016;南京航空航天大学 机电学院,江苏 南京210016 |
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| 摘 要： | 为提高搅拌摩擦焊焊接成功率,基于相关工程经验和热传导理论,提出了一种在确定被焊工件厚度情况下保证焊接成功所需要的搅拌头最小轴肩直径的方法。讨论搅拌针直径和长度等参数的选取方法,以稳态焊接时搅拌头摩擦产热量等于工件内固塑分界面的散热量为基础,推导被焊工件厚度与所需搅拌头最小轴肩直径的关系方程,并探讨该方程相关参数的取值范围。以6061铝合金为例,通过该方程绘制工件厚度与搅拌头轴肩直径的关系图,其结果符合实际情况。
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| 关 键 词： | 搅拌摩擦焊 搅拌头参数 搅拌头直径 |
A Method for Determining the Critical Value of the Shoulder of Friction Stir Welding Tool |
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| ZHU Zonghuang,ZUO Lisheng,LI Zeyang,ZUO Dunwen.A Method for Determining the Critical Value of the Shoulder of Friction Stir Welding Tool[J].Machine Building & Automation,2021,50(1):66-69. |
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| Authors: | ZHU Zonghuang ZUO Lisheng LI Zeyang ZUO Dunwen |
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| Affiliation: | (College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautic,Nanjing 210016,China) |
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| Abstract: | To improve the success rate of friction stir welding,this paper proposes a method for determining the minimum shoulder diameter of a FSW tool for successful welding as the thickness of workpiece is assured.And the value of other parameters of the tool concerning the diameter and length of pin is also discussed.The relationship between the thickness of the workpiece to the minimum diameter of the shoulder is derived based on the frictional heat generated by the tool equal to the heat dissipation of the solid-plastic interface in the workpiece.Moreover,the paper probes into the value of the relevant parameters of the equation.With the 6061 aluminum alloy as an example and based on equation,the relationship between the thickness of the workpiece and the diameter of the shoulder is plotted,and its results prove to be in line with the actual situation. |
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| Keywords: | friction stir welding parameters diameter |
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