公开(公告)号：US20180093331A1

公开(公告)日：2018-04-05

申请号：US15324798

申请日：2016-06-22

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Anongsack Paseuth ,  Hideaki Kanaoka ,  Satoshi Ono ,  Shinya Imamura

IPC: B23B27/14 ,  B23B51/04 ,  B23C5/22 ,  B23F21/00

CPC classification number: B23B27/148 ,  B23B51/0466 ,  B23C5/2217 ,  B23F21/005 ,  C23C16/34 ,  C23C16/36 ,  C23C16/45523 ,  C23C28/042 ,  C23C28/044 ,  C23C30/005

Abstract: A surface-coated cutting tool includes a base material and a coating. A hard layer in the coating includes a plurality of crystal grains having a sodium chloride-type crystal structure. When the angle of intersection between the normal direction to (111) plane that is a crystal plane of the crystal grain and the normal direction to the surface of the base material is measured, a proportion A of the crystal grains having the angle of intersection of 0 degree or more to less than 20 degrees is 50% or more. The length of Σ3 grain boundaries is less than 50% of the length of Σ3-29 grain boundaries. The crystal grain has a layered structure in which a first layer and a second layer are alternately stacked. The total thickness of the first layer and the second layer adjacent to each other is 3 to 40 nm.

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：US12220747B2

公开(公告)日：2025-02-11

申请号：US17600612

申请日：2020-05-18

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Fumiyoshi Kobayashi ,  Susumu Okuno ,  Anongsack Paseuth ,  Shinya Imamura

IPC: B23B27/14 ,  B23C5/16 ,  C23C16/36 ,  C23C16/40 ,  C23C28/04

Abstract: A cutting tool including a rake face and a flank face includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an Al2O3 layer, residual stress of the Al2O3 layer has a minimum value Rmin at at least a portion of a region d1 of the rake face, the minimum value Rmin is more than −0.27 GPa and less than or equal to −0.1 GPa.

公开(公告)号：US11938548B2

公开(公告)日：2024-03-26

申请号：US18018886

申请日：2022-06-15

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Yuta Suzuki ,  Shinya Imamura

IPC: C23C30/00 ,  B23B27/14 ,  C23C14/02 ,  C23C14/06 ,  C23C14/32 ,  C23C14/50 ,  C04B41/50

CPC classification number: B23B27/148 ,  C23C14/022 ,  C23C14/0641 ,  C23C14/0647 ,  C23C14/325 ,  C23C14/505 ,  C23C30/005 ,  B23B2224/24 ,  B23B2228/105 ,  C04B41/5063 ,  C04B41/5068

Abstract: A cutting tool comprising a base material and a coating, wherein the coating includes a first layer having a multilayer structure in which a first unit layer and a second unit layer are alternately stacked; a thickness of the first unit layer is 2 to 50 nm; a thickness of the second unit layer is 2 to 50 nm; a thickness of the first layer is 1.0 μm or more and 20 μm or less, the first unit layer is composed of TiaAlbBcN, and the second unit layer is composed of TidAleBfN, wherein 0.49≤a≤0.70, 0.19≤b≤0.40, 0.10≤c≤0.20, a+b+c=1.00, 0.39≤d≤0.60, 0.29≤e≤0.50, 0.10

公开(公告)号：US11530467B2

公开(公告)日：2022-12-20

申请号：US17425341

申请日：2020-12-23

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Takato Yamanishi ,  Shinya Imamura

IPC: C22C29/08 ,  B23B27/14

Abstract: Cemented carbide contains a first hard phase and a binder phase. The first hard phase is composed of tungsten carbide particles. The binder phase is composed of cobalt, nickel, iron, and copper as constituent elements. An average content of each of the constituent elements is not lower than 10 atomic % and not higher than 30 atomic %. Cemented carbide contains no second hard phase, or a content of the second hard phase is equal to or lower than 2 mass % of a total amount of cemented carbide. The second hard phase is composed of a compound containing at least one type of a metal element selected from the group consisting of a group-IV element, a group-V element, and a group-VI element in a periodic table except for tungsten and at least one type of an element selected from the group consisting of carbon, nitrogen, and oxygen.

公开(公告)号：US11311945B2

公开(公告)日：2022-04-26

申请号：US16482068

申请日：2018-12-27

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Anongsack Paseuth ,  Yasuki Kido ,  Susumu Okuno ,  Shinya Imamura

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

Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound and the third AlTi compound have a hexagonal crystal structure, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure.

公开(公告)号：US11220744B2

公开(公告)日：2022-01-11

申请号：US16482118

申请日：2018-12-27

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Anongsack Paseuth ,  Yasuki Kido ,  Susumu Okuno ,  Shinya Imamura

IPC: C23C16/34 ,  B23B27/14 ,  B23B51/00 ,  B23C5/16 ,  B23D77/00

Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure, the third AlTi compound has a hexagonal crystal structure.

公开(公告)号：US11219952B2

公开(公告)日：2022-01-11

申请号：US16466227

申请日：2018-12-14

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Satoshi Ono ,  Shinya Imamura ,  Susumu Okuno ,  Anongsack Paseuth

IPC: B23B27/14 ,  B24C1/10 ,  C23C16/04 ,  C23C16/36

Abstract: A surface-coated cutting tool includes a base material and a coating covering the base material. The base material includes a rake face and a flank face. The coating includes a TiCN layer. The TiCN layer has a (422) orientation in a region d1 in the rake face. The TiCN layer has a (311) orientation in a region d2 in the flank face.