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1. (WO2018039118) POWER SKIVING PRESSURE ANGLE CORRECTION WITHOUT TOOL GEOMETRY CHANGE

Pub. No.:    WO/2018/039118    International Application No.:    PCT/US2017/047789
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Aug 22 01:59:59 CEST 2017
IPC: B23F 5/16
B23F 21/06
Applicants: THE GLEASON WORKS
Inventors: STADTFELD, Hermann, J.
GAISER, Uwe
Title: POWER SKIVING PRESSURE ANGLE CORRECTION WITHOUT TOOL GEOMETRY CHANGE
Abstract:
Cutting blade pressure angle changes or corrections in power skiving cutters (20) can be realized without the need for a tool geometry change. An axial shift (26) of the blade reference point (24) will shift the existing involute on the blade profiles (22, 23) into a different radial location. An accompanying shift (AR) of the reference involute profile (30) by approximately the same amount and in the same direction will re-establish the relationship between work gear and cutter. The resulting work gear geometry has the same radial location of the slots, with the same slot width and the same tooth thickness but with a changed pressure angle.