CEMENTED CARBIDE END MILL EXCELLENT IN RESISTANCES TO WEAR AND CHIPPING

摘要

PROBLEM TO BE SOLVED: To provide a cemented carbide end mill excellent in resistances to wear and chipping. SOLUTION: This cemented carbide end mill, consisting of a cutting edge and shank, is formed with the average film thickness of 1-10μm of the spatter vapor deposition film of a cemented carbide containing Co: 1-4 wt.% as a bond phase forming component on the surface of at least cutting edge of the end mill main body constituted by the sintered body of the cemented carbide containing Co: 5-16 wt.% as the bond phase forming component.