Patent ID: 9156099
Filing Date: 2015-10-13
Classification: B23F,C21D,Y02P,Y10T

Abstract:
1. A method for manufacturing a gearwheel, comprising: clamping a gearwheel blank in a workholder of a multi-axis machine tool; clamping a milling head in a tool holder of the multi-axis machine tool; rotating the tool holder by a spindle drive to enable the milling head to mill out tooth spaces of the gearwheel blank to thereby create a gearwheel having teeth; replacing the milling head in the tool holder by an inductor; inserting the inductor successively between two adjacent teeth of the gearwheel; supplying the inductor with an alternating current from a current supply device of the spindle drive to inductively heat at least one of the two adjacent teeth; actively cooling the at least one inductively heated tooth by a cooling medium after termination of inductive heating, and transferring the inductor during active cooling of the at least one inductively heated tooth for insertion between two other adjacent teeth of the gearwheel for inductively heating at least one of the two other adjacent teeth; replacing the inductor in the tool holder by a machining tool; and remachining the inductively heated and cooled teeth of the gearwheel by the machining tool; wherein the gearwheel blank is held by the workholder in a single clamping operation during the milling step through the remachininq step and wherein the active cooling of the at least one inductively heated tooth and the inductive heating of the at least one of the two other adjacent teeth are effected simultaneously.