Reinforcement of glass fibers at the weld joint interface of polyamide 66 (PA66) was investigated aiming to improve the weld strength but rather found to improve the tribological properties. The weld strength of glass fiber reinforced polyamide 66 was found to be in the range of 46 %–52 % of that of the parent material. The dry sliding wear behavior of the friction stir welded polyamide 66 with and without glass fiber strengthening was investigated in this experimental study, using a pin-on-disk wear tester. The worn surface topography and morphology were analyzed via white light interferometry and scanning electron microscope, respectively. The wear study confirmed that PA66 reinforced with high fiber content of 20 % by weight of polymer (GF/PA66) yielded a minimum specific wear rate and coefficient of friction.

研究了在聚酰胺66（PA66）的焊接接头界面处增强玻璃纤维的目的，是为了提高焊接强度，但发现其是为了改善摩擦学性能。玻璃纤维增​​强聚酰胺66的焊接强度为母材的46％–52％。在这项实验研究中，使用销盘式磨损测试仪研究了摩擦搅拌焊接的聚酰胺66在有无玻璃纤维增​​强的情况下的干滑动磨损行为。分别通过白光干涉法和扫描电子显微镜分析了磨损的表面形貌和形态。磨损研究证实，PA66用高纤维含量为20％的聚合物（GF / PA66）增强后，具有最低的比磨损率和摩擦系数。