| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coated tool exhibiting excellent wear resistance and chipping resistance, even when cutting a titanium alloy, a heat resistant alloy and stainless steel or the like under a high sped cutting condition involving generation of high heat.SOLUTION: A hard coating layer is composed of: (a) a base layer having a predetermined layer thickness and satisfying (AlTi)N(0.25≤X≤0.55) (b) a thin layer A having a predetermined layer thickness and composed of an AlTi composite nitrogen oxide layer satisfying (AlTi)(ON)(0.25≤Y≤0.55, 0.50≤a≤0.95); and (b) a thin layer B having a predetermined layer thickness and composed of an AlMn composite nitrogen oxide layer satisfying (AlMn)(ON)(0.10≤Y≤0.50, 0.01<b≤0.50). In the hard coating layer, the thin layer A and the thin layer B are alternately laminated on the base layer, a layer thickness of the base layer is thicker than the total layer thickness of the alternately laminated layer, the layer thickness of the thin layer A is thicker than the layer thickness of the thin layer B, and the total layer thickness of the whole hard coating layer is 1.0-10.0μm.</p> |
