Patent ID: 8186032

Claim:
Tool arrangement for the production of helical gearing in gear wheels, characterized in that a roughing hob ( 20 ), at least one deburring cutter ( 16 , 18 ) and a finishing hob ( 12 ) can be fastened on a common mandrel ( 14 ) in a predetermined rotational position relative to one another, and the teeth of the finishing hob ( 12 ), which are situated along a helical line, each have a different cross section such that the engagement angle of the right or left side flanks of the teeth decreases continuously starting from a maximum value of the first tooth up to the last tooth, and the maximum engagement angle of the right flanks of the first or last tooth coincides with the minimum engagement angle of the left flanks, and vice versa, and the finishing hob ( 12 ) and mandrel ( 14 ) are formed in one piece, and the roughing hob ( 20 ) and the at least one deburring cutter ( 16 , 18 ) are fixated on the mandrel ( 14 ) by a clamping nut ( 24 ) and a spacer ring ( 26 ).