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首页> 外文期刊>Journal of Materials Engineering and Performance >Numerical and Experimental Investigations on the Loads Carried by the Tool During Friction Stir Welding
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Numerical and Experimental Investigations on the Loads Carried by the Tool During Friction Stir Welding

机译：搅拌摩擦焊接中刀具承载的数值与实验研究。

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摘要

A computational fluid dynamics (CFD) model is presented for simulating the material flow and heat transfer in the friction stir welding (FSW) of 6061-T6 aluminum alloy (AA6061). The goal is to utilize the 3-D, numerical model to analyze the viscous and inertia loads applied to the FSW tool by varying the welding parameters. To extend the FSW process modeling, in this study, the temperature-dependant material properties as well as the stick/slip condition are considered where the material at the proximity of the FSW tool slips on the lower pressure regions. A right-handed one-way thread on a tilted FSW tool pin with a smooth, concaved shoulder is, additionally, considered to increase the accuracy of the numerical model. In addition, the viscous and frictional heating are assumed as the only sources of heat input. In the course of model verification, good agreements are found between the numerical results and the experimental investigations.
机译：提出了一种用于模拟6061-T6铝合金（AA6061）搅拌摩擦焊（FSW）中材料流动和传热的计算流体动力学（CFD）模型。目的是利用3-D数值模型通过改变焊接参数来分析施加到FSW工具的粘性和惯性载荷。为了扩展FSW过程建模，在本研究中，考虑了温度相关的材料属性以及粘着/滑移条件，其中FSW工具附近的材料在低压区域滑动。此外，还考虑了倾斜的FSW工具销上的右旋单向螺纹具有光滑的凹肩部，以提高数值模型的精度。另外，粘性和摩擦加热被假定为唯一的热输入源。在模型验证的过程中，数值结果与实验研究之间找到了很好的一致性。

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