METHOD AND EQUIPMENT FOR FRICTION WELDING

PURPOSE:To efficiently obtain a product with high quality by pressing and friction-welding plural members while rotating these relatively and subsequently, removing burrs formed on a joint at the joining position by punching to prevent the occurrence of chips, tearing off, etc. CONSTITUTION:In a clamper 2, a work is held and fixed between holding bases 16 on a carriage 13 to move in the direction of the axial center by a hydraulic motor 14. On the other hand, in a chuck and punch unit 3, the other work to be welded is held by a chuck 36 provided to the tip of a hollow spindle 35. While the spindle 35 being rotated by driving a spindle motor 41, it is advanced via a holder 34 by an action of a cylinder 46 to press both works. By this method, both works are subjected to friction welding. Afterward, clamping of the above-mentioned holding bases 16 is released. The joined works are pressed and moved to the right and left by an action of a punch cylinder 51 via a punch rod inserted through the inside of the above-mentioned hollow spindle 35 and the burrs on the work peripheral surfaces are punched and removed by dies fitted to the above-mentioned holding bases 16.