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首页> 外文会议>ASME international manufacturing science and engineering conference >OPTIMIZING PROCESS CONDITIONS IN FRICTION STIR-DIFFUSION LAP WELDING OF ALUMINUM ALLOY WITH COLD ROLLED STEEL
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OPTIMIZING PROCESS CONDITIONS IN FRICTION STIR-DIFFUSION LAP WELDING OF ALUMINUM ALLOY WITH COLD ROLLED STEEL

机译：冷轧铝合金摩擦搅拌扩散搭焊的工艺条件优化

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摘要

This paper deals with the development of friction stir diffusion bonding between 2 mm thick 5052 Aluminum alloy and Cold rolled Steel for cladding application. The investigation focuses on the effect of process conditions on tensile-shear strength of produced lap joint by considering four independent welding parameters: tool rotational speed, welding speed, tool axial force and tool offset in the consecutive pass. A short tool-pin was utilized to avoid tool penetration into the steel substrate and mechanical mixing between clad material and the substrate. In order to optimize the process parameters for maximum joint strength and minimize the number of tests, Taguchi orthogonal array L9 with four factors and three levels was used. Results revealed that tool rotational speed had the greatest influence on produced weld strength. On the other hand, the tool pin length or penetration depth was found to have more effect on weld strength than the axial force. Moreover, clamps' rigidity had a great impact on joint strength. For the selected material and tool, the optimum welding conditions were found to be 1000 rpm rotational speed, 12 kN plunging force, 100 mm/min welding speed and 12 mm tool offset.
机译：本文研究了在2 mm厚的5052铝合金和冷轧钢之间进行摩擦搅拌扩散粘结的应用。通过考虑四个独立的焊接参数：工具转速，焊接速度，工具轴向力和连续走刀中的工具偏移量，研究着重于工艺条件对所生产搭接接头的拉伸剪切强度的影响。利用短的工具销来避免工具渗入钢基材中以及避免包覆材料与基材之间的机械混合。为了优化工艺参数以获得最大的接合强度并最大程度地减少测试次数，使用了具有四个因子和三个级别的田口正交阵列L9。结果表明，工具转速对产生的焊接强度影响最大。另一方面，发现工具销的长度或穿透深度对焊接强度的影响大于轴向力。而且，夹具的刚度对接头强度有很大的影响。对于选定的材料和工具，发现最佳焊接条件为：1000 rpm旋转速度，12 kN的推力，100 mm / min的焊接速度和12 mm的工具偏移。

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