method and device for the production of schweißhitze reibschweißen

摘要

1,264,863. Welding by pressure. ALLWOOD, SEARLE & TIMNEY Ltd. 16 March, 1970 [18 March, 1969], No. 14134/69. Heading B3R. In a method of and apparatus for friction welding, the workpieces to be joined are rotated in the same direction and at the same speed about parallel axes, with their end faces urged together so as to generate frictional heat for welding, the workpieces then being brought into axial alignment and further urged together to effect welding. In one embodiment, Figs. 1, 2, workholders 11, 24 are driven from a common motor 1, the holder 24 being mounted for arcuate movement about the axis of drive shaft 2 by means of bearings 19, 20; this movement is effected by hydraulic cylinder 21, while hydraulic cylinder 16 is used to assert the necessary axia pressure on the work holder 11 to effect welding. In alternative arrangements one of the workholders is supported on a slide or spring mounting to permit the necessary movement between the aligned and spaced positions; the movement may be effected by means of a cam, pneumatic cylinder, lead screw or linkage means. In one embodiment, Fig. 10, drive between the workholders 44, 45 is transmitted by a centrally arranged transmission 50, 51, 52. The workholders may -carry more than one pair of workpieces to be welded e.g. a circular array or several concentric circular arrays of components.