| 摘要 |
The invention relates to a method of manufacturing a belt pulley consisting of a metal disc, such as a poly-V-belt pulley, a toothed belt pulley, a flat belt pulley etc., having a hub and a region whose basic shape is a hollow cylinder, which is externally smooth or cambered, or is provided with a profile running in the circumferential or lateral direction, and whose material thickness can be greater than that of the hub, the metal disc being profiled in a corrugated shape in its circumferential region in a first step of the method and the respective finished profile being produced in further steps of the method. …<??>Known methods require a large number of process steps and a large amount of force for forming. The new method is intended to allow high- quality belt pulleys to be produced from metal discs with a comparatively low outlay for carrying out the method. …<??>The new method is characterised in that, in a second step of the method, the circumferential region (11), profiled in a corrugated shape, of the metal disc (1) is rolled into a shape, which is corrugated when seen in cross-section, with a corrugation maximum (12, 12') in each case on the edge side, pointing outwards in the radial direction, and laterally adjacent wave minima (13, 13'), pointing inwards, so that a contour is produced having a corrugated shape with optimum material distribution for further processing. …<IMAGE>… |
