Three-dimensional modeling of the friction stir-welding process
Three-dimensional modeling of the friction stir-welding process
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DOI：
10.1016/s0890-6955(02)00114-1
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发表时间：
2002-11-01
影响因子：
14
通讯作者：
Ulysse, P
中科院分区：
文献类型：
--
作者：
Ulysse, P
本文尝试用三维粘塑性模型来模拟搅拌焊接过程。该项目的范围集中在铝厚板的对接接头。参数研究已进行，以确定工具速度对板温度的影响，并验证模型预测与可用的测量。此外，已经计算了各种焊接和旋转速度下作用在工具上的力。据发现，销力增加，增加焊接速度，但观察到相反的效果，增加旋转速度。数值模型，如这里提出的一个将是有用的设计焊接工具，将产生所需的热梯度，避免工具断裂。(C)2002爱思唯尔科技有限公司版权所有。
This paper presents an attempt to model the stir-welding process using three-dimensional visco-plastic modeling. The scope of the project is focused on butt joints for aluminum thick plates. Parametric studies have been conducted to determine the effect of tool speeds on plate temperatures and to validate the model predictions with available measurements. In addition, forces acting on the tool have been computed for various welding and rotational speeds. It is found that pin forces increase with increasing welding speeds, but the opposite effect is observed for increasing rotational speeds. Numerical models such as the one presented here will be useful in designing welding tools which will yield desired thermal gradients and avoid tool breakage. (C) 2002 Elsevier Science Ltd. All rights reserved.