Patent ID: 7198441
Filing Date: 2007-04-03
Classification: B23F,Y10T

Abstract:
1. A method for cutting spiral bevel and hypoid gears using a cutter head which includes the following steps: a) driving the cutter head around its rotational axis, b) guiding the cutter head and a workpiece into their starting positions, c) producing a complete tooth space through a cutting process using the rotating cutter head, d) returning the cutter head and the workpiece to their starting positions, e) rotating the workpiece by one pitch either simultaneously with the preceding method step or subsequently thereto, f) repeating steps c) to e) until all tooth spaces of the workpiece are finished with the additional step of indexing the cutter head at a predetermined instant to an identical angular position around its rotational axis relative to the tooth space to be produced as with the preceding tooth space, this additional step corresponding to an angular compensation.