Abstract
C/C-SiC composite which has recently been developed is C/C composite infiltrated silicon. In this study several endmill cutting experiments for this material were carried out. Cemented carbide, DLC coated and PCD tools were used. The relation between the tool wear and the cutting conditions were investigated. The tool wear progress of the PCD was smaller than that of the DLC coated tool. The cutting tests with cooling air also were carried out in order to clarify the coolant effective. It was found that tool wear was decreased with cooling air.
