C/C コンポジットの切削加工面性状(第1報) : 平織り材の加工面性状ならびに残留堆積物

概要

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Machined surface properties of plain-woven C/C composites have been investigated. SEM observation results indicated that surface properties ofthe θ_2 layer predominantly controlled the machined surface finish. The θ_2 layer on the machined surface provided four types of feature; burnished, built-up residue, over-cut and smooth surface. The cutting forces depended on the rake angle and the fiber angle θ_1/θ_2 as same as the unidirectional composite. All cutting conditions presented built-up residue which consists of broken fiber and matrix around the fiber on the machined surface. Measurement results indicated that break down percentage, the weight percentage of built-up residue in the weight of the workmaterial, was significantly affected by the rake angle and the fiber angle θ_1/θ_2. However, break down percentage could not vary the values corresponding to the cutting force.
1999-05-05