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Surface-coated cutting tool which exhibits chipping resistance and wear resistance of hard coating layer has excellent high-speed heavy cutting work
Surface-coated cutting tool which exhibits chipping resistance and wear resistance of hard coating layer has excellent high-speed heavy cutting work
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机译:具有硬涂层抗崩裂性和耐磨性的表面涂层刀具具有出色的高速重切削性能
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摘要
PROBLEM TO BE SOLVED: To provide a surface-coated cutting tool having a hard coating layer exhibiting excellent chipping resistance and wear resistance in high-speed heavy cutting.;SOLUTION: In this surface-coated cutting tool, a lower layer comprising an adhesive Ti compound layer and a reformed TiCN layer and an upper layer comprising a reformed (Al, Zr)2O3 layer are vapor-deposited on the surface of a tool base. When the quantity and positions of Σ3-adaptive grain boundaries which face the boundary surface between the upper layer and the lower layer are measured, 30-70% of the Σ3 adaptive grain boundaries facing the boundary surface form a crystal grain boundary in continuous with the Σ3-adaptive grain boundaries of the upper layer. Desirably, the ratio of Σ3 of the lower layer in the depth area of up to 1 μm from the boundary surface to at least the base surface side is 60% or more of the total of ΣN+1. The ratio of Σ3 of the upper layer is 60% or more of the total of ΣN+1.;COPYRIGHT: (C)2010,JPO&INPIT
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机译:要解决的问题:提供一种具有硬涂层的表面涂层切削工具,该涂层在高速重切削中具有出色的抗崩刃性和耐磨性。解决方案:在这种表面涂层切削工具中,下层包括一层Ti将化合物层和重整的TiCN层以及包括重整的(Al,Zr) 2 Sub> O 3 Sub>的上层气相沉积在工具基座的表面上。当测量面对上层和下层之间的界面的σ3自适应晶界的数量和位置时,面对界面的σ3自适应晶界的30-70%形成晶粒边界与上层的Σ 3自适应晶界连续。期望地,在从边界表面到至少底表面侧的最大1μm的深度区域中的下层的σ3的比率为总σN + 1的60%以上。上层的Σ 3的比例为Σ N + 1的总数的60%或更高。;版权:(C)2010,JPO&INPIT
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