发明公开
EP4365330A1 CUTTING TOOL
审中-实审
- 专利标题: CUTTING TOOL
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申请号: EP22833223.5申请日: 2022-06-29
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公开(公告)号: EP4365330A1公开(公告)日: 2024-05-08
- 发明人: MOROGUCHI, Hironari , TSUTSUMIUCHI, Yuki , TSUKIHARA, Nozomi , UEDA, Akihiko , KUKINO, Satoru
- 申请人: Sumitomo Electric Hardmetal Corp.
- 申请人地址: JP Itami-shi, Hyogo 664-0016 1-1, Koyakita 1-chome
- 专利权人: Sumitomo Electric Hardmetal Corp.
- 当前专利权人: Sumitomo Electric Hardmetal Corp.
- 当前专利权人地址: JP Itami-shi, Hyogo 664-0016 1-1, Koyakita 1-chome
- 代理机构: Boult Wade Tennant LLP
- 优先权: WO PCT/JP2021/024828 2021.06.30
- 国际申请: JP2022026003 2022.06.29
- 国际公布: WO2023277077 2023.01.05
- 主分类号: C23C28/00
- IPC分类号: C23C28/00 ; C23C28/04 ; C23C30/00 ; B23B27/14 ; C23C14/06
摘要:
A cutting tool comprises a substrate and a coating film disposed on the substrate, wherein the coating film comprises a first layer and a second layer; the first layer has a hardness Hi of 25 GPa or more and 40 GPa or less; the second layer has a hardness H2 satisfying 0.5×H1≤H2≤0.9×H1; and at least one of a ratio I(200)/(I(200)+I(111)+I(220)) of I(200) of (200) plane to a sum of X-ray diffraction intensity I(200) of (200) plane, X-ray diffraction intensity I(111) of (111) plane, and X-ray diffraction intensity I(220) of (220) plane of the coating film, a ratio I(111)/(I(200)+I(111)+I(220)) of I(111) to the sum, and a ratio I(220)/(I(200)+I(111)+I(220)) of I(220) to the sum is 0.45 or more.
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