PROCESS FOR FORMING A RING, FORMING TOOL AND FORMING MACHINE FOR USE IN SUCH PROCESS AS WELL AS PUSH BELT PROVIDED WITH SUCH A RING

摘要

Process for forming a ring (10), which in final form, is to be used in a push belt provided with an endless tensile means, which is composed of a number of such rings (10), and a plurality of transverse elements carried by the endless tensile means, in which process the ring (10) is separated from a sheet metal tube (1) that is clamped and rotated within a turning machine (40), and in which process a lateral side face (11) of such ring (10) is subsequently shaped. In which process in a first step (step I) a forming tool (20) of the turning machine (40) is urged in radial direction relative to the tube (1), whereby locally tube material (5) is cut up and the ring (10) is separated, whereto the forming tool (20) is provided with a first cutting edge (30), and in which process in a second process step (step II) the forming tool (20) is urged in axial direction relative to the ring (10), whereby a lateral side face (11) of the ring (10) is shaped, whereto the forming tool (20) is provided with a further cutting edge (31).