Diamond Turning of Oxygen-Free Copper for Mirrors

概要

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This paper deals with machining tests, regarding oxygen-free copper (OFC) as one of the materials suitable for diamond turning. The machining tests were carried out to study the optimal cutting conditions for OFC, the selection of a suitable high-purity OFC material for mirrors and the mirror-finishing properties of the suitable OFC material over long cutting distances. The test results show the following. ( 1 ) The optimal cutting conditions are 9-17μm/rev for the feed rate and 15-20μm for the depth of cut. ( 2 ) The raw material produced by the processes of hot rolling, cold rolling and heat treatment is the most suitable with respect to the surface integrity. ( 3 ) The surface roughness is stable in the cutting distance range of 500 km. As for tool wear, crater wear, in particular, is remarkably large, while flank wear is negligible.
一般社団法人日本機械学会の論文
1993-12-15