Abstract A high-speed friction lap welding (FLW) technique for directly joining of aluminum to polymer is presented in this paper. Experimental results show that a consistent bond quality at the joint interface has been achieved at welding speeds as high as 5 m/min, which can be attributed to the formation of new C-O-Al bonds observed by X-ray photoelectron spectroscopy (XPS), in addition to mechanical interlocking. Lap-shear tests were performed for evaluating joint shear strengths of the welded samples corresponding to different welding conditions. It was found that as long as an interfacial threshold temperature was attained, the actual interface bond strengths are essentially the same regardless of welding temperature and welding speed.

中文翻译：

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一种高速金属与聚合物直接连接技术和底层结合机制

摘要 本文介绍了一种用于将铝与聚合物直接接合的高速摩擦搭接焊 (FLW) 技术。实验结果表明，在焊接速度高达 5 m/min 时，接头界面处的结合质量一致，这可归因于 X 射线光电子能谱 (XPS) 观察到的新 CO-Al 键的形成，除了机械联锁。进行搭接剪切试验以评估对应于不同焊接条件的焊接样品的接头剪切强度。发现只要达到界面阈值温度，无论焊接温度和焊接速度如何，实际界面结合强度基本相同。