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首页> 外文期刊>Journal of Materials Engineering and Performance >Friction Stir Welding of 5052-H18 Aluminum Alloy: Modeling and Process Parameter Optimization
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Friction Stir Welding of 5052-H18 Aluminum Alloy: Modeling and Process Parameter Optimization

机译：摩擦搅拌焊接5052-H18铝合金：建模与工艺参数优化

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In this paper, rolled sheets of aluminum alloy 5052-H18 were joined by friction stir welding. Several samples were welded by varying the principal parameters including tool rotational speed, linear speed, tool shoulder diameter, and pin diameter. Response surface methodology (RSM) was used as the statistical design of experiment technique for parameter optimization. A predictive model was developed to determine optimum parameters that maximize tensile strength. Results showed that the tool rotational speed was the most important parameters affecting the tensile strength of aluminum alloy 5052 joints. Maximum tensile strength was achieved using the rotational speed of 1233 rpm, the linear speed of 107 mm/min, the shoulder diameter of 12.8 mm, and the pin diameter of 1.8 mm. The difference in tensile strength between the predicted value and the measured value was 2.1%. The effect of tool rotational speed and linear speed on the size of the heat-affected zone was investigated. Consequently, a three-dimensional model was developed to predict the size of heat-affected zone and the temperature history of the material during the FSW process and the results were compared with experimental data.
机译：本文采用搅拌摩擦焊方法对5052-H18铝合金轧制薄板进行了连接。通过改变主要参数，包括刀具转速、线速度、刀具台肩直径和销直径，焊接了几个样品。采用响应面法（RSM）作为参数优化实验技术的统计设计。开发了一个预测模型，以确定使抗拉强度最大化的最佳参数。结果表明，刀具转速是影响5052铝合金接头抗拉强度的最重要参数。使用1233 rpm的转速、107 mm/min的线性速度、12.8 mm的肩部直径和1.8 mm的销直径获得最大拉伸强度。预测值和测量值之间的抗拉强度差异为2.1%。研究了刀具转速和线速度对热影响区大小的影响。因此，开发了一个三维模型来预测FSW过程中热影响区的大小和材料的温度历史，并将结果与实验数据进行了比较。

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