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Surface-coated high speed tool steel gear cutting tool which exhibits wear resistance of hard coating layer has excellent high-speed gear cutting
Surface-coated high speed tool steel gear cutting tool which exhibits wear resistance of hard coating layer has excellent high-speed gear cutting
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机译：表现出硬涂层耐磨性的表面涂层高速工具钢齿轮切削刀具具有出色的高速齿轮切削性能
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摘要
PROBLEM TO BE SOLVED: To provide a gear cutting tool made of surface coated high speed tool steel having a hard coated layer exhibiting excellent wear resistance in high speed gear cutting processing.;SOLUTION: The tool is constituted by physical vapor-depositing the hard coating layer comprising composite nitride of Al and Ti on a surface of a base body comprising a gear cutting tool body made of high speed tool steel at the total average layer thickness of 1-10 μm. In the hard covering layer, the Al highest containing point and the Al lowest containing point alternately and repeatedly exist at a predetermined interval and the hard coating layer has a component concentration distribution structure that the Al content is continuously varied from the Al highest containing point to the Al lowest containing point, and from the Al lowest containing point to the Al highest containing point. In the hard coated layer, the Al highest containing point satisfies the composition formula: (Al1-XTiX)N (provided that X represents 0.05-0.30 at an atomic ratio) and the Al lowest containing point satisfies the composition formula: (Al1-YTiY)N (provided that Y represents 0.35-0.60 at an atomic ratio) respectively. The interval of the adjacent Al highest containing point and Al lowest containing point is made to 0.01-0.1 μm.;COPYRIGHT: (C)2004,JPO&NCIPI
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机译：要解决的问题：提供一种由表面涂层的高速工具钢制成的齿轮切削工具，该工具钢的硬质涂层在高速齿轮切削加工中表现出优异的耐磨性。;解决方案：该工具由物理气相沉积的硬质涂层构成在包括由高速工具钢制成的齿轮切削工具主体的基体表面上包括Al和Ti的复合氮化物的层，其总平均层厚为1-10μm。在硬质被覆层中，Al最高含有点和Al最低含有点以预定间隔交替且重复地存在，并且硬质被覆层具有Al含量从Al最高含有点到Al连续地变化的成分浓度分布结构。 Al最低含点，以及从Al最低含点到Al最高含点。在该硬涂层中，Al的最高含点满足组成式：（Al 1-X Ti X ）N（假设X在原子上表示0.05-0.30 Al最低含点分别满足组成公式：（Al 1-Y Ti Y ）N（假设Y表示原子比为0.35-0.60） 。使相邻的Al最高含有点和Al最低含有点的间隔为0.01〜0.1μm。COPYRIGHT：（C）2004，JPO＆NCIPI
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