An OX horn type interlocking joint of MC Nylon-6 (top sheet) and AMXS6020 Mg alloy (bottom sheet) with satisfactory mechanical properties had been obtained by friction stir lap welding (FSLW) using an adjustable tool. The adjustable tool produced the good surface appearances and mechanical interlocking interfaces with low shoulder rotation speeds and high probe rotation speeds. The Mg alloy around the probe was stirred into the melted MC Nylon-6 zone during the FSLW process to form OX horn shape which bended toward the joint centre. The influences of welding parameters on Mg alloy horns formation, tensile shear strength and fracture morphology were investigated. Mechanical interlocking induced by the Mg alloy horns contributed to the main joining mechanism.

中文翻译：

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使用可调工具将塑料与金属进行摩擦搅拌搭接焊接

使用可调工具通过搅拌摩擦搭接焊 (FSLW) 获得了具有令人满意的机械性能的 MC Nylon-6（顶板）和 AMXS6020 镁合金（底板）的 OX 喇叭型互锁接头。可调刀具产生了良好的表面外观和机械互锁界面，肩部旋转速度低，探头旋转速度高。在 FSLW 过程中，探针周围的镁合金被搅拌到熔化的 MC Nylon-6 区，形成向接头中心弯曲的 OX 喇叭形状。研究了焊接参数对镁合金角形成、拉伸剪切强度和断口形貌的影响。由镁合金角引起的机械互锁促成了主要的连接机制。