公开(公告)号：US20190177839A1

公开(公告)日：2019-06-13

申请号：US16310586

申请日：2017-06-30

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： Yuuzoh Fukunaga ,  Masayuki Imai

IPC分类号： C23C16/34 ,  B23B27/14 ,  C23C16/455

摘要： A hard coating comprising a lower layer formed by an fcc-based titanium aluminum nitride coating, and an upper layer formed by an aluminum nitride coating having an hcp crystal system, the upper layer having a columnar crystal structure, the columnar crystals having an average transverse cross section diameter of 0.05-0.6 μm, and a ratio of an X-ray diffraction peak value Ia(002) of (002) planes to an X-ray diffraction peak value Ia(100) of (100) planes in the upper layer meeting the relation of Ia(002)/Ia(100)≥6.

公开(公告)号：US10767258B2

公开(公告)日：2020-09-08

申请号：US15770946

申请日：2016-11-18

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： Yuuzoh Fukunaga ,  Masayuki Imai

IPC分类号： B23B27/14 ,  C23C16/34 ,  C23C16/455 ,  C23C28/04

摘要： A titanium aluminum nitride coating having a columnar crystal structure, which is formed on a substrate, comprises high-Al TiAlN having an fcc structure, which has a composition represented by (Tix1, Aly1)N, wherein x1 and y1 are numbers meeting x1=0.005-0.1, and y1=0.995-0.9 by atomic ratio, and network-like, high-Ti TiAlN having an fcc structure, which has a composition represented by (Tix2, Aly2)N, wherein x2 and y2 are numbers meeting x2=0.5-0.9, and y2=0.5-0.1 by atomic ratio; the high-Al TiAlN being surrounded by the network-like, high-Ti TiAlN.

公开(公告)号：US20210354204A1

公开(公告)日：2021-11-18

申请号：US16639901

申请日：2018-11-09

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： Yuuzoh Fukunaga ,  Masayuki Imai

IPC分类号： B23B27/14 ,  C23C16/34 ,  C23C16/02 ,  C23C16/455 ,  C23C16/56

摘要： A coated cutting tool includes a substrate and a hard film on coated on the substrate. The hard film contains a complex nitride of Al and Cr. The hard film includes aggregates of columnar grains grown on the substrate along the thickness of the film. The nitride has an Al content of 60 atom % or more, a Cr content of 10 atom % or more, and a total content of Al and Cr of 90 atom % or more relative to the total amount of metal and metalloid elements. The complex nitride has the highest peak intensity assigned to crystal plane (311) of an fcc structure in X-ray diffractometry. In the hard film, the ratio of an X-ray diffraction intensity of plane (311) to the intensities of the other planes is 1.30 or more. A method and a system are also provided for manufacturing the coated cutting tool by chemical vapor deposition.

公开(公告)号：US11015242B2

公开(公告)日：2021-05-25

申请号：US16310586

申请日：2017-06-30

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： Yuuzoh Fukunaga ,  Masayuki Imai

IPC分类号： B23B27/14 ,  C23C16/34 ,  B23C5/16 ,  C23C16/455

摘要： A hard coating comprising a lower layer formed by an fcc-based titanium aluminum nitride coating, and an upper layer formed by an aluminum nitride coating having an hcp crystal system, the upper layer having a columnar crystal structure, the columnar crystals having an average transverse cross section diameter of 0.05-0.6 μm, and a ratio of an X-ray diffraction peak value Ia(002) of (002) planes to an X-ray diffraction peak value Ia(100) of (100) planes in the upper layer meeting the relation of Ia(002)/Ia(100)≥6.

公开(公告)号：US20180305811A1

公开(公告)日：2018-10-25

申请号：US15770946

申请日：2016-11-18

申请人： Mitsubishi Hitachi Tool Engineering, Ltd.

发明人： Yuuzoh Fukunaga ,  Masayuki Imai

IPC分类号： C23C16/34 ,  C23C16/455 ,  B23B27/14

CPC分类号： C23C16/34 ,  B23B27/148 ,  B23B2228/10 ,  C23C16/45502 ,  C23C16/45514 ,  C23C16/45578 ,  C23C28/042 ,  C23C28/044

摘要： A titanium aluminum nitride coating having a columnar crystal structure, which is formed on a substrate, comprises high-Al TiAlN having an fcc structure, which has a composition represented by (Tix1, Aly1)N, wherein x1 and y1 are numbers meeting x1=0.005-0.1, and y1=0.995-0.9 by atomic ratio, and network-like, high-Ti TiAlN having an fcc structure, which has a composition represented by (Tix2, Aly2)N, wherein x2 and y2 are numbers meeting x2=0.5-0.9, and y2=0.5-0.1 by atomic ratio; the high-Al TiAlN being surrounded by the network-like, high-Ti TiAlN.