METHOD OF PROCESSING RIDGE OF CUTTING EDGE AND INSTRUMENT WITH PROCESSED RIDGE OF CUTTING EDGE

摘要

Two surfaces forming a cutting edge and a ridge of a cutting edge existing along the boundary between the two surfaces intersecting with each other are irradiated with a gas cluster ion beam at the same time, the maximum height of the profile of the two surfaces being equal to or smaller than 1 μm. A facet is newly formed on the ridge of the cutting edge by performing the irradiation with the gas cluster ion beam in such a manner that the two surfaces are not perpendicularly but obliquely irradiated with the gas cluster ion beam, and at least a part of the ridge of the cutting edge is perpendicularly irradiated with the gas cluster ion beam.

主权项

1. A method of processing a ridge of a cutting edge of, a maximum height of a profile of two surfaces forming the cutting edge being equal to or smaller than 1 μm, and the ridge of the cutting edge existing along a boundary between the two surfaces intersecting with each other, the method comprising:
a step of newly forming a facet on said ridge of the cutting edge by irradiating said two surfaces and said ridge of the cutting edge with a gas cluster ion beam in such a manner that said two surfaces are not perpendicularly but obliquely irradiated with the gas cluster ion beam, and at least a part of said cutting edge is perpendicularly irradiated with the gas cluster ion beam.