An Analytical Approach of Modelling Friction Stir Welding
An Analytical Approach of Modelling Friction Stir Welding
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搅拌摩擦焊建模的分析方法
DOI：
10.1016/j.procir.2014.06.131
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Zaeh
中科院分区：
文献类型：
--
作者：
A. Roth;T. Hake;M. Zaeh
建立了一个简单的搅拌摩擦焊接扭矩模型，该模型基于接触界面的滑动/粘接条件，将基本响应变量温度和轴向力与扭矩联系起来。通过实验验证了该模型的有效性，该模型能够精确测量响应变量。根据测得的扭矩和轴向力，计算并分析了摩擦系数。μ fine随转速的减小而增大，随深度的突然增大而减小。μfi的变化范围主要在0.3 ~ 0.4之间。
A simple model for torque in friction stir welding is developed, based on a sliding/sticking condition in the contact interface, correlating the fundamental response variables temperature and axial force to torque. The model is validated by experiments using a special test rig enabling the precise measurement of the response variables. From the measured torque and axial force the friction coefficientμfis calculated and analyzed. It is observed thatμfincreases with decreasing rotation speed and drops with abrupt step-ups of the plunge depth.μfis found to mainly vary in the range of 0.3-0.4.