Method for producing a rotor of a screw compressor or a workpiece with a helical profile

A method for producing a rotor of a screw compressor or a workpiece with a helical profile, wherein the rotor or the workpiece with a helical profile has a number of profiles in the form of groove-shaped recesses running in a spiral manner on its outer circumference, wherein the groove-shaped recesses are fine-machined using a grinding tool for the purpose of generating a precise profile, wherein the groove-shaped recesses are fine-machined with a grinding tool which only touches the surface of the groove-shaped recess at one point during the grinding process, wherein the entire surface to be machined is machined by the grinding tool through line-by-line traversing of the surface to be machined, wherein the groove-shaped recesses of the rotor or of the workpiece with a helical profile have a variable pitch or a variable profile over the axial course of the rotor or of the workpiece with a helical profile, wherein a grinding tool in the form of a grinding wheel is used, wherein the abrasive section of the grinding wheel has a gothic profile in radial section.