Vorrichtung und Verfahren zur Herstellung eines Stirnrads mit einer Schrägverzahnung

The device (100) has a cutting plate (101) provided with an aperture (102) that comprises an inner helical gearing (103). An outer helical gearing (106) is formed at a periphery of an ejector (105) corresponding to the inner helical gearing. A stamper (113) is linearly movable in a direction vertical to a surface (104) of the cutting plate such that a material (108) e.g. metal plate and strip material, is partially pressed into the aperture on the plate surface. The ejector performs a screw movement in the aperture with a linear portion that is rectified for the stamper movement. An independent claim is also included for a method for manufacturing a spur gear.