Explanation

A solid state pressure welding method that utilizes the heat generated by mutual friction between the contact surfaces of the welded parts under pressure to achieve a thermoplastic state at the ends and form a connection. According to the relative motion form of the workpiece, when the workpiece rotates at high speed around the axis, it can be divided into drive friction welding, inertia friction welding and phase control friction welding; When the workpiece does not move, there are radial friction welding, cable mixing friction welding, etc; When the workpiece moves in a straight line, there is linear friction welding; When the workpiece moves in other ways, there are rail friction welding, friction overlaying, etc. friction welding can be used to weld dissimilar metals and parts with large size differences. weld has high productivity, low energy consumption and high dimensional accuracy of weldments. friction welding is mainly used in automobile, hydraulic equipment and tool industries.

Classification