METHOD OF CHAMFER-PROCESSING TOOTH FORM OF GEAR

PROBLEM TO BE SOLVED: To shorten a chamfer-processing time of a tooth form.SOLUTION: After simultaneously executing chamfer-processing of both side surfaces (A1 and A2) and a bottom part (B1) of the tooth form of an upper surface of a work object gear, by allowing the work object gear (w) and a screw-like grinding wheel (g) to abut at a torsion angle ( ) of 50 degrees of the outer peripheral edge of the screw-like grinding wheel (g) abutting on an outer peripheral edge upper part of the work object gear, on the work object grear (w), then, after separating both (w and g), the work object gear (w) is vertically inversely fixed to a rotary shaft, and the work object gear (w) and the screw-like grinding wheel (g) are also allowed to abut at the torsion angle ( ) of 50 degrees, to simultaneously execute the chamfer-processing of both side surfaces (A1 and A2) and the bottom part (B1) of the tooth form of the upper surface of the work object gear (w).