Aluminum matrix composites have received considerable attention due to their high specific strength and specific stiffness, high hardness, and wear resistance along with being light in weight. These composites are preferably joined using friction stir welding process. The major concern in friction stir welding is the wear of the welding tool pin which is the backbone of the process. The wear is due to the prolonged contact between the tool and the harder reinforcements in the composite materials. The present work deals with the study of tool wear and its surface roughness with respect to different selected friction stir welding parameters such as rotational speed, transverse speed, length of weld, and different composition of Aluminum composite. It was found that the total amount of material removed from the tool and the surface roughness of the tool is in direct proportion to the rotational speed of the tool and the length of the weld but inversely proportional to the transverse rate. The increase in wt.% of SiC reinforcement leads to the higher tool wear but reduces the surface roughness of the tool.

铝基复合材料由于其高比强度和比刚度，高硬度和耐磨性以及重量轻而备受关注。这些复合材料优选地使用摩擦搅拌焊接工艺进行连接。搅拌摩擦焊接中的主要问题是焊接工具销钉的磨损，这是该过程的基础。磨损归因于工具与复合材料中较硬的增强件之间的长时间接触。本工作针对不同的选择的搅拌摩擦焊接参数，例如转速，横向速度，焊接长度和铝复合材料的不同成分，研究了工具磨损及其表面粗糙度的研究。发现从工具中去除的材料总量和工具的表面粗糙度与工具的旋转速度和焊缝的长度成正比，而与横向速率成反比。SiC增强材料的重量百分比的增加导致工具磨损增加，但降低了工具的表面粗糙度。