A27 Cutting of cemented carbide using a diamond coated carbide tool under the minute feed rate

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  • A27 微小送り条件下でのダイヤコート工具による超硬合金の切削加工(OS3 工具・ツーリング(1))

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This paper deals with the cutting mechanism of cemented carbide by using a diamond coated carbide end mill. Geometry of the chips, tool wear behavior, and machined groove integrity were investigated experimentally. R3 ball end mill was applied under supplying air blow. As a results, saw-tooth type chips were generated even in the cemented carbide cutting. The diamond coated tool was fractured when the groove length was 80 to 100 mm in the high feed rate (f=30 μm/tooth). The width of machined groove decreased with the flaking of the coating film on the bottom flank face.

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