公开(公告)号：US20200030887A1

公开(公告)日：2020-01-30

申请号：US16559282

申请日：2019-09-03

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Anongsack Paseuth ,  Takanori Detani

IPC: B23B27/14 ,  C23C16/34 ,  C23C16/52 ,  C23C16/44

Abstract: A hard coating includes two first crystalline phases, and a second crystalline phase disposed between the two first crystalline phases. The two first crystalline phases each include, independently, a laminate structure having a Ti1-x1Alx1N phase having a sodium chloride-type crystal structure, and an Alx2Ti1-x2N phase having a sodium chloride-type crystal structure that are alternately stacked. An Al composition ratio x1 of the Ti1-x1Alx1N phase satisfies a relationship 0.5≤x1≤0.75, and an Al composition ratio x2 of the Alx2Ti1-x2N phase satisfies a relationship 0.75

公开(公告)号：US09834845B2

公开(公告)日：2017-12-05

申请号：US15101858

申请日：2015-08-28

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Shinya Imamura ,  Hideaki Kanaoka ,  Anongsack Paseuth ,  Takanori Detani

IPC: B23B27/14 ,  C23C28/04 ,  C23C16/36 ,  C23C16/30 ,  C23C16/40 ,  C23C16/34

CPC classification number: C23C28/044 ,  B23B27/148 ,  C23C16/0272 ,  C23C16/308 ,  C23C16/34 ,  C23C16/36 ,  C23C16/403 ,  C23C16/56 ,  C23C28/042 ,  C23C30/005

Abstract: A coating included in a surface-coated cutting tool according to the present invention has an α-Al2O3 layer. In a 15-μm square color map of a processed surface in parallel to a surface of the α-Al2O3 layer, an area A1 occupied by coarse crystal grains A is ≦50% and an area A2 in the area A1 occupied by crystal grains having a (001) plane orientation is ≧90%, an area B1 occupied by medium-sized crystal grains B of α-Al2O3 is 20 to 50%, an area B2 in the area B1 occupied by crystal grains having the (001) plane orientation is ≧90%, an area C1 occupied by fine crystal grains C of α-Al2O3 is 10 to 50%, an area C2 in the area C1 occupied by crystal grains having the (001) plane orientation is ≧50%.

公开(公告)号：US20170191168A1

公开(公告)日：2017-07-06

申请号：US15039988

申请日：2015-07-13

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Anongsack Paseuth ,  Hideaki Kanaoka ,  Takanori Detani ,  Shinya Imamura

IPC: C23C28/04 ,  C23C16/36 ,  C23C16/40 ,  B23B27/14

CPC classification number: C23C28/044 ,  B23B27/148 ,  C23C16/36 ,  C23C16/40 ,  C23C16/403 ,  C23C28/042

Abstract: A surface-coated cutting tool according to the present invention includes a coating. The coating includes an α-Al2O3 layer. Each of the α-Al2O3 layers on a side of a rake face and a side of a flank face shows (001) orientation. In the α-Al2O3 layer on the rake face side, a length LR3 of a Σ3 crystal grain boundary exceeds 80% of a length LR3-29 of a Σ3-29 crystal grain boundary and is not lower than 10% and not higher than 50% of a total length LR of all grain boundaries. In the α-Al2O3 layer on the flank face side, a length LF3 of a Σ3 crystal grain boundary exceeds 80% of a length LF3-29 of a Σ3-29 crystal grain boundary and is not lower than 10% and not higher than 50% of a total length LF of all grain boundaries. A ratio LR3/LR3-29 is higher than a ratio LF3/LF3-29.

公开(公告)号：US10058924B2

公开(公告)日：2018-08-28

申请号：US15103381

申请日：2015-08-28

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Takanori Detani

IPC: B23B27/14 ,  B23C5/20 ,  C23C16/02 ,  C23C16/40

CPC classification number: B23B27/148 ,  B23B2224/04 ,  B23B2224/28 ,  B23B2224/36 ,  B23B2228/04 ,  B23B2228/105 ,  B23C5/20 ,  B23C2224/04 ,  B23C2224/28 ,  B23C2224/36 ,  B23C2228/04 ,  B23C2228/10 ,  C23C16/029 ,  C23C16/403 ,  C23C16/45523

Abstract: A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer. The α-Al2O3 layer contains α-Al2O3 crystal grains and sulfur, and has a TC(006) of more than 5 in texture coefficient TC(hkl). The sulfur has a concentration distribution in which a concentration of the sulfur decreases in a direction away from a base-material-side surface of the α-Al2O3 layer, in a thickness direction of the α-Al2O3 layer.

公开(公告)号：US20180029144A1

公开(公告)日：2018-02-01

申请号：US15550513

申请日：2016-11-30

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Satoshi Ono ,  Shinya Imamura ,  Takanori Detani ,  Anongsack Paseuth

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

CPC classification number: B23C5/16 ,  B23B27/14 ,  B23B27/148 ,  B23B2200/242 ,  B23B2200/245 ,  B23B2200/247 ,  B23B2224/24 ,  B23B2228/04 ,  B23B2228/105 ,  C23C16/0272 ,  C23C16/34 ,  C23C16/455 ,  C23C16/45587 ,  C23C16/45591 ,  C23C28/044 ,  C23C30/005

Abstract: A surface coated cutting tool having surfaces including a rake face and a flank face and a cutting edge defined by a boundary portion between the rake face and the flank face includes a substrate and a coating which covers the surfaces of the substrate, the coating having a TiAlN layer having an NaCl type crystal structure, and relation of 0.65

公开(公告)号：US20170268124A1

公开(公告)日：2017-09-21

申请号：US15320914

申请日：2016-06-21

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Hideaki Kanaoka ,  Shinya Imamura ,  Anongsack Paseuth ,  Takanori Detani

IPC: C30B29/20 ,  C23C16/36 ,  C30B28/14 ,  B23B27/14

CPC classification number: C30B29/20 ,  B23B27/148 ,  B23B2224/04 ,  B23B2224/28 ,  B23B2224/36 ,  B23B2228/04 ,  B23B2228/105 ,  C23C16/0272 ,  C23C16/36 ,  C23C16/403 ,  C23C16/45523 ,  C23C28/042 ,  C23C28/044 ,  C23C30/005 ,  C30B28/14

Abstract: A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer. The α-Al2O3 layer contains a plurality of α-Al2O3 crystal grains and a plurality of κ-Al2O3 crystal grains, and has a TC(006) of more than 5 in a texture coefficient TC(hkl). A ratio of Cκ to a sum of Cα and Cκ: [Cκ/(Cα+Cκ)×100](%) is 0.05 to 7%, where Cα is a total number of peak counts of the α-Al2O3 crystal grains obtained from measurement data of x-ray diffraction for the coating, and Cκ is a total number of peak counts of the κ-Al2O3 crystal grains obtained from the measurement data of the x-ray diffraction for the coating.

公开(公告)号：US20170259345A1

公开(公告)日：2017-09-14

申请号：US15102992

申请日：2015-10-09

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Takanori Detani ,  Shinya Imamura ,  Hideaki Kanaoka ,  Anongsack Paseuth

IPC: B23B27/14 ,  C23C16/30 ,  C23C16/40 ,  B23P15/30

CPC classification number: B23B27/148 ,  B23B51/00 ,  B23B2224/04 ,  B23B2224/32 ,  B23B2228/04 ,  B23B2228/105 ,  B23P15/30 ,  B24C1/02 ,  C23C16/303 ,  C23C16/34 ,  C23C16/403 ,  C23C28/042 ,  C23C28/044

Abstract: A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer containing a plurality of α-Al2O3 crystal grains. The α-Al2O3 layer includes: a first region made up of an edge ridgeline, a region A of a rake face, and a region B of a flank face; a second region which is a region of the rake face except for the region A and covered with the coating; and a third region which is a region of the flank face except for the region B. The α-Al2O3 layer satisfies a relation b−a>0.5, where a is an average value of a TC(006) in the first region in texture coefficient TC(hkl) and b is an average value of the TC(006) in the second region or the third region in texture coefficient TC(hkl).

公开(公告)号：US10603726B2

公开(公告)日：2020-03-31

申请号：US15550513

申请日：2016-11-30

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Satoshi Ono ,  Shinya Imamura ,  Takanori Detani ,  Anongsack Paseuth

IPC: B23B27/14 ,  B23C5/16 ,  C23C16/34 ,  C23C16/455 ,  C23C30/00 ,  C23C16/02 ,  C23C28/04

Abstract: A surface coated cutting tool having surfaces including a rake face and a flank face and a cutting edge defined by a boundary portion between the rake face and the flank face includes a substrate and a coating which covers the surfaces of the substrate, the coating having a TiAlN layer having an NaCl type crystal structure, and relation of 0.65

公开(公告)号：US09878374B2

公开(公告)日：2018-01-30

申请号：US15039999

申请日：2015-07-13

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Anongsack Paseuth ,  Hideaki Kanaoka ,  Takanori Detani ,  Shinya Imamura

IPC: B23B27/14 ,  C30B25/14 ,  C30B25/10 ,  C30B29/20 ,  C30B33/02 ,  C23C16/36 ,  C23C16/40 ,  C23C16/56

CPC classification number: B23B27/148 ,  B23B2224/04 ,  B23B2224/32 ,  B23B2228/04 ,  B23B2228/105 ,  C23C16/36 ,  C23C16/403 ,  C23C16/56 ,  C23C28/042 ,  C30B25/10 ,  C30B25/14 ,  C30B29/20 ,  C30B33/02

Abstract: A surface-coated cutting tool according to the present invention is provided with a base material and a coating formed on the base material, the coating includes an α-Al2O3 layer, the α-Al2O3 layer includes a plurality of crystal grains of α-Al2O3 and shows (001) orientation, a grain boundary of the crystal grains contains a CSL grain boundary and a general grain boundary, and a length of a Σ3 crystal grain boundary out of the CSL grain boundary exceeds 80% of a length of a Σ3-29 crystal grain boundary and is equal to or more than 10% and equal to or less than 50% of the total length of all grain boundaries which is the sum of the length of the Σ3-29 crystal grain boundary and a length of the general grain boundary.

公开(公告)号：US09844816B2

公开(公告)日：2017-12-19

申请号：US15102584

申请日：2015-10-09

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Takanori Detani ,  Shinya Imamura ,  Hideaki Kanaoka ,  Anongsack Paseuth

IPC: B23B27/14 ,  C23C16/40 ,  C23C16/56

CPC classification number: B23B27/148 ,  B23B2224/04 ,  B23B2224/32 ,  B23B2228/04 ,  B23B2228/105 ,  C23C16/0272 ,  C23C16/403 ,  C23C16/56 ,  C23C28/044

Abstract: A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer containing a plurality of α-Al2O3 crystal grains. The α-Al2O3 layer includes a lower layer portion disposed at a side of the base material, an intermediate portion disposed on the lower layer portion, and an upper layer portion disposed on the intermediate portion. In a crystal orientation mapping performed on a polished cross-sectional surface of the α-Al2O3 layer using an EBSD, an area ratio of α-Al2O3 crystal grains with (001) orientation in the lower layer portion is less than 35%, an area ratio of α-Al2O3 crystal grains with (001) orientation in the intermediate portion is 35% or more, and an area ratio of α-Al2O3 crystal grains with (001) orientation in the upper layer portion is less than 35%.