Abstract Sound hybrid joint was achieved with a sufficient mixture of 6061-T6 aluminum (Al) alloy and polyether ether ketone (PEEK) via friction stir lap welding (FSLW) by a tapered thread pin with the triple facets. The larger length ratio between the Al anchor and the rotating pin reached approximately 0.8 at low welding speeds due to the dynamic flow induced by the triple facets. The mechanical interlocking and adhesive bonding attributed to the high-quality joining. Increasing welding speed resulted in the reduction of the adhesion area and the decrease in the size of the Al anchor, deteriorating the mechanical interlocking. A high-quality with the maximum shear bond strength of 20 MPa was achieved through the big Al anchor with a high hardness value. The tapered thread pin with the triple facets has feasible and potential to FSLW of metal and polymer in terms of enhancing mechanical interlocking.

中文翻译：

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通过搅拌摩擦搭接焊连接铝合金和聚合物

摘要 6061-T6 铝 (Al) 合金和聚醚醚酮 (PEEK) 的充分混合通过搅拌摩擦搭接焊接 (FSLW) 实现了良好的混合接头，该接头使用具有三棱面的锥形螺纹销。由于三面引起的动态流动，在低焊接速度下，铝锚和旋转销之间的较大长度比达到大约 0.8。机械互锁和粘合剂粘合归因于高质量的连接。增加焊接速度导致粘附面积减少和铝锚栓尺寸减小，使机械互锁恶化。通过具有高硬度值的大铝锚实现了最大剪切结合强度为 20 MPa 的高质量。