Details on rotating friction, welding equipment, and welding methods

Abstract

The invention, in the field of friction stir welding, aims to propose a rotating component for friction stirring capable of high-strength welding and preventing welding defects. The rotating part for friction stirring is installed in the welding equipment to perform friction stirring welding of the workpiece. The workpiece is designed so that when the rotating part is positioned on the actuator shaft of the drive mechanism within the welding equipment, it is rotated by the rotational movement provided by the drive mechanism. A gap is created between the actuator shaft and the pin, which is inserted into the workpiece at the moment of friction stirring. This gap allows the pin to vibrate relative to the actuator shaft. And due to the clearance, at the moment of friction stirring, the oscillation of the pin has a larger amplitude and / or higher frequency than the oscillation of the drive shaft.