【摘要】 搅拌焊工具技术是搅拌摩擦焊工艺最重要的因素。搅拌焊工具主要由肩部和焊针组成,焊接薄板时,旋转的肩部和工件之间摩擦产生的热量是主要热源,而随着板厚的增加,更多的热量必须靠旋转的焊针和工件摩擦产生。焊接工具的主要作用是保证连接区材料产生足够的塑性变形,并控制焊针周围塑性体的流动,形成优质的焊接接头。更多还原

【Abstract】 Tool technology is the most important factor in the friction stir welding process. The tool comprises a shoulder and a probe. Heat is generated on the surface by friction between the rotating shoulder and the workpiece surface and , when welding thin sheets, this is the main source of heat. As the workpiece thickness increases, more heat must be supplied by friction between the rotating probe and the workpiece. Also, the main function of the probe is to ensure sufficient working of the material at the weld line and to control the flow of the material around the tool to form a satisfactory weld.更多还原