Surface scarfing method

Abstract

Abstract PURPOSE:To improve the grinding efficiency and the grinding accuracy with a metal and ceramics by irradiating a laser beam to the scarfing surface from the direction inclined thereto and blowing gas to said surface thereby blowing off the melt. CONSTITUTION:The surface 2a to be scarfed of an object 2 to be scarfed is relatively moved while a laser beam 3 is irradiated thereto, and gas 4 is blown toward the position where the beam is irradiated. The beam is irradiated at 30-80 deg. angle theta of irradiation in this stage. If the angle theta of irradiation is <30 deg., the scarffing efficiency decreses and if it exceeds 80 deg., an evaporating material and spatter intrude in an optical system. Air, oxygen, nitrogen, CO2, Ar, etc. are usable as blowing gas, and a nozzle 8 is used as a gas blowing means. A better effect is obtd. by directing the gas toward the position where the beam is irradiated from behind the relative moving direction of the beam 3. Precision grinding on a rolling roll under rolling is also possible.

Inventors

• 👤 Nobuyuki Yamauchi
• 👤 山内　信幸
• 👤 Isamu Koizumi
• 👤 勇 小泉

Bibliographic Details