Patent ID: 9120167
Filing Date: 2015-09-01
Classification: B23F

Abstract:
1. A method of setting a specification of a threaded tool which meshes with a machining-target face gear to be machined by the threaded tool, the threaded tool being formed in such a way as to increase gradually in diameter from axial ends thereof toward an axial center thereof, the method comprising: based on a prescribed pinion which meshes with the machining-target face gear, setting a first gear which meshes with the prescribed pinion and has a greater number of teeth than the number of teeth of the prescribed pinion; based on the first gear, setting a second gear which is internally toothed with the same number of teeth as the number of teeth of the first gear; and based on the second gear, setting the specification of the threaded tool for use in gear machining of the machining-target face gear gear.