Metal mirror finishing method

Abstract

Abstract PURPOSE:To form a qualitatively uniform film suitable for obtaining a higher reflection rate onto a mother material, thereafter to cut this film by a diamond cutting tool into a mirror surface. CONSTITUTION:A polyhedron of revolution 1 performs rotary motion at a high speed generally of 4,000-40,000rpm, and for its material, an Al alloy of light weight further with large strength and not deformed during rotation is most suitable. A qualitatively uniform film 8, for instance, Al vacuum evaporation film or the like is formed to 25mum in thickness onto a mother material consisting of Al, and this film 8 is cut by a diamond cutting tool and formed into a mirror surface. In this way, the mirror surface can be obtained in maso production only with low machining cost.

Inventors

• 👤 Kenji Morita
• 👤 健二 森田
• 👤 Shigeo Kato
• 👤 加藤　重雄

Bibliographic Details