发明名称 |
COATED CERMET THROWAWAY CUTTING TIP HAVING HARD COATING LAYER EXERTING EXCELLENT ANTI-CHIPPING PERFORMANCE IN HIGH-SPEED CUTTING |
摘要 |
PROBLEM TO BE SOLVED: To provide a coated cutting tip whose hard coating layer exerts excellent anti-chipping performance in high-speed cutting. SOLUTION: The coated cutting tip is structured so that the hard coating layer consisting of a Ti compound layer as lower layer and anα-type Al<SB>2</SB>O<SB>3</SB>layer as upper layer is formed by means of evaporation on the surface of the base of the tip, wherein the surface of theα-type Al<SB>2</SB>O<SB>3</SB>layer as the upper layer is polished by jetting a polishing liquid containing Al<SB>2</SB>O<SB>3</SB>particulates as a jet polishing material by means of wet blasting in the condition that the polishing material layer structured so that two or more TiN layers and TiCN layers having a mean thickness of 0.1-2.5μm are laminated alternately and having an overall mean thickness of 0.4-5μm is formed by evaporation on the whole surface of the Al<SB>2</SB>O<SB>3</SB>layer as the upper layer, wherein the surface roughness Ra should be no more than 0.2μm, and a pattern where the hard coating layer residual stress is reduced is formed on the surface to be polished by means of irradiation with laser beam. COPYRIGHT: (C)2007,JPO&INPIT
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申请公布号 |
JP2007245269(A) |
申请公布日期 |
2007.09.27 |
申请号 |
JP20060070235 |
申请日期 |
2006.03.15 |
申请人 |
MITSUBISHI MATERIALS CORP |
发明人 |
HONMA TETSUHIKO;HARA HIROSHI;NISHIDA MAKOTO;KUNUGI HITOSHI |
分类号 |
B23B27/14;B23P15/28;B24C1/02;C23C16/30 |
主分类号 |
B23B27/14 |
代理机构 |
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