抄録
Availability of CBN tools for dry and wet cutting of hypereutectic Al-Si alloys was examined. In low speed dry cutting at a cutting speed 2m/s, the tool deposit adheres to the tool flank and the plateau is formed. Particularly in cutting of the Al-16%Si alloy, the grooving wear occurs on the cutting edge portion which corresponds to the depth of cut owing to scratching of Si particles in the chip. If the Si content increases, the grooving wear is lightened and the width of flank wear reduces. The CBN tool may be applicable to a certain extent to low speed dry cutting. But the CBN tool causes heavy tool wear in low speed wet cutting and wet dry high speed cutting at a cutting speed 10m/s, and is unapplicable.
