Method for dressing of a grinding worm by means of a dressing roll and dressing roll

A method for producing a dressing roll that has an abrasive profile that is tooth-shaped in a radial cross section and extends radially from a root region to a tip region and dressing a grinding worm with the dressing roll, comprising the steps of:

• producing the dressing roll by:
• a) producing a counterpart which has an inner surface which is tooth-shaped in the radial cross section;
• b) positioning a layer of abrasive particles on the tooth-shaped inner surface and fixing the abrasive particles by way of a carrier material, wherein the carrier material forms a carrier layer for the abrasive particles;
• c) producing a disk-shaped base body of the dressing roll and connecting the base body with the carrier layer including the abrasive particles;
• d) demolding the base body of the dressing roll including the carrier layer and the abrasive particles from the counterpart;
• and
• e) profiling the base body which is provided with the abrasive particles by removing outer sections of the abrasive particles with a profiling tool so that the abrasive profile of the dressing roll is created, wherein
• at the production of the counterpart according to step a) the counterpart is provided with the surface in such a manner that the distance between the profiled surface and the abrasive profile is changing by either increasing or decreasing during advancing from the root region to the tip region at least at one flank of the surface, measured in the radial cross section perpendicular to the profiled surface;
• and
• bringing the dressing roll into engagement with the grinding worm to profile a helical grinding profile in the grinding worm.