公开(公告)号：US20230026334A1

公开(公告)日：2023-01-26

申请号：US17835109

申请日：2022-06-08

申请人： TUNGALOY CORPORATION

发明人： Takao KATAGIRI

IPC分类号： B23B27/14 ,  C22C29/08 ,  C23C14/06 ,  C23C14/32

摘要： A coated cutting tool includes a substrate and a coating layer formed on the substrate, wherein the coating layer comprises a compound layer containing a compound having a composition represented by (AlxCryTi1−x−y)N (in the formula (1), x represents an atomic ratio of an Al element to a total of the Al element, a Cr element and a Ti element and satisfies 0.70≤x≤0.95, and y represents an atomic ratio of a Cr element to a total of an Al element, the Cr element and a Ti element and satisfies 0.04≤y≤0.21, and 1−x−y>0); a ratio (Cr/Ti) of the Cr element and the Ti element in the compound layer is 1.0 or more and 2.5 or less; and an average thickness of the compound layer is 2.0 μm or more and 10.0 μm or less.

公开(公告)号：US20230001488A1

公开(公告)日：2023-01-05

申请号：US17732787

申请日：2022-04-29

申请人： TUNGALOY CORPORATION

发明人： Hiroki SHIMANUKI ,  Yusuke SUZUKI

IPC分类号： B23B27/16

摘要： Provided is a holder of a cutting insert that performs turning on a work by feeding a cutting edge in a Y axis direction which is different from a longitudinal direction (X axis) of a tool holder installed in a tool rest, and that can easily adjust the projection amount without contacting a part of the holder to the tool rest. A Y axis holder holds the cutting insert including a cutting edge to perform turning on a work that moves along the Z axis, and is installed in a state where relative movement in the X axis direction with respect to the tool rest is possible, such that a projection amount of the cutting insert along the X axis is changeable. The Y axis holder performs turning on the work using the cutting insert when the holder moves in the Y axis direction which is different from the X axis direction. The Y axis holder has a shape in which an end portion thereof in the X axis direction is projected from the cutting edge of the cutting insert, and a positioning portion to determine the projection amount of the cutting insert from the tool rest is disposed on the end portion.

公开(公告)号：US20220274184A1

公开(公告)日：2022-09-01

申请号：US17550136

申请日：2021-12-14

申请人： TUNGALOY CORPORATION

发明人： Yusuke SUZUKI ,  Yasutake SASAKI

IPC分类号： B23B27/16

摘要： Chip discharge during high-feed machining and low-feed machining particularly in a high-depth-of-cut state or the like is improved so as to provide adaptability to a wide range of cutting conditions during low depth and high depth cutting and during low-feed and high-feed machining and allow so-called freedom of feed during cutting to be improved. A cutting insert includes a cutting edge body and a substrate to which the cutting edge body is joined. The cutting edge body has a prismatic shape having a longitudinal direction and a lateral direction perpendicular to the longitudinal direction and includes a cutting edge formed on an intersecting edge between a peripheral side surface and an upper surface of the cutting edge body having the prismatic shape and a recessed part formed at a position on the upper surface of the cutting edge body which is more distant from the intersecting edge than from the cutting edge. The substrate has a projected part upwardly projecting from the upper surface of the cutting edge body.

公开(公告)号：US20220266349A1

公开(公告)日：2022-08-25

申请号：US17454150

申请日：2021-11-09

申请人： TUNGALOY CORPORATION

发明人： Takehiro IDA

IPC分类号： B23B27/16 ,  B23B27/00

摘要： The present invention provides a cutting tool that can firmly hold four types of cutting inserts by one tool main unit. A cutting insert of a cutting tool 1 has an approximately triangular stereoscopic shape including three corner portions. A tool main unit has a fixing portion that can selectively fix a plurality of types of cutting inserts, including: a negative type cutting insert of which angle of the corner portion exceeds 60°, a positive type cutting insert of which angle of the corner portion exceeds 60°; a negative type cutting insert of which angle of the corner portion is less than 60°; and a positive type cutting insert of which angle of the corner portion is less than 60°. The fixing portion has a bottom face that contacts with a bottom face of the cutting insert, and a side wall face that contacts with a side face of the cutting insert. A portion, which contacts with the cutting insert, of the side wall face of the fixing portion differs depending on the type of the cutting insert.

公开(公告)号：US11421307B2

公开(公告)日：2022-08-23

申请号：US17098654

申请日：2020-11-16

申请人： TUNGALOY CORPORATION

发明人： Harufumi Suzuki

IPC分类号： C22C29/08 ,  B23B27/14 ,  C23C14/06 ,  C23C14/32

摘要： Provided is a cemented carbide having superior wear resistance and fracture resistance. A cemented carbide containing 50.0 mass % or more and 94.5 mass % or less of tungsten carbide, 5.0 mass % or more and 12.0 mass % or less of Co, and 0.5 mass % or more and 4.0 mass % or less of Ru, the cemented carbide comprising a WC phase that includes tungsten carbide as a main component, and a binder phase that binds the WC phase, wherein the binder phase contains Co, the lattice constant of Co in the binder phase is 3.580 Å or more and 3.610 Å or less, and the saturation magnetization of the cemented carbide is 40% or more and 58% or less.

公开(公告)号：US20220212269A1

公开(公告)日：2022-07-07

申请号：US17518196

申请日：2021-11-03

申请人： TUNGALOY CORPORATION

发明人： Syunsuke MIYAZAWA

IPC分类号： B23B27/16

摘要： The present disclosure improves the machining conditions and enhances the quality of machined surfaces, particularly in cutting off and grooving machining when the projection amount of a plate-like member is large. A blade, which is a plate-like member having a polygonal shape and used for cutting machining, includes: a plurality of insert pockets; and recess portions formed by partial cutting corresponding to insert pockets respectively. A holder includes: a holder main portion; and a support portion with which a part of the recess portion formed in the blade contacts. The holder is configured in which the blade can be installed in a state where the part of the recess portion can contact with the support portion.

公开(公告)号：US11365777B2

公开(公告)日：2022-06-21

申请号：US16725468

申请日：2019-12-23

申请人： TUNGALOY CORPORATION

发明人： Mitsuo Kamei

IPC分类号： F16C33/12 ,  F16D69/02 ,  C25D5/14 ,  C25D7/00 ,  F16D69/00

摘要： A friction material comprising a Fe part; a coating layer formed over a surface of the Fe part; and a friction part formed on a surface of at least a part of the coating layer wherein: the coating layer comprises a first coating layer and a second coating layer in order from Fe part side, the first coating layer is constituted of an alloy containing Cu, Ni and Fe such that Fe content be not less than 10 atom %, the second coating layer is constituted of an alloy containing Cu and Ni, or an alloy containing Cu, Ni and Fe such that Fe content be less than 10 atom %, an average thickness of the first coating layer is not less than 1.0 μm and not more than 6.0 μm; and an average thickness of the second coating layer is not less than 9.5 μm and not more than 24.0 μm.

公开(公告)号：US11305357B2

公开(公告)日：2022-04-19

申请号：US17076038

申请日：2020-10-21

申请人： TUNGALOY CORPORATION

发明人： Katsuya Ishii

IPC分类号： C23C16/36 ,  B23B27/14 ,  C23C28/04 ,  C23C16/30 ,  C23C16/32 ,  C23C16/40

摘要： A coated cutting tool of the present invention comprises a substrate and a coating layer formed on a surface of the substrate, wherein the coating layer comprises a lower layer and an upper layer formed on a surface of the lower layer, the lower layer comprises a specified Ti compound layer having a specified average thickness, the upper layer comprises an α-aluminum oxide layer having a specified average thickness, the Ti compound layer comprises at least one Ti carbonitride layer, the Ti carbonitride is composed of Ti(CxN1-x) (0.65

公开(公告)号：US11298750B2

公开(公告)日：2022-04-12

申请号：US16748619

申请日：2020-01-21

申请人： TUNGALOY CORPORATION

发明人： Tsukasa Shirochi ,  Kinya Takahashi ,  Naoyuki Fukushima

IPC分类号： B23B27/14 ,  C23C16/34 ,  C23C16/32 ,  C23C16/30 ,  C23C16/40 ,  C23C16/36

摘要： Provided is a coated cutting tool of long tool life and that affords superior machined surface quality. A coated cutting tool includes a substrate, and a coating layer formed on the substrate. The coated cutting tool includes at least one flank face, at least one rake face, and a honing section rounded and connecting the flank face and the rake face. The coating layer includes a lower layer, an intermediate layer and an upper layer, in this order from the side of the substrate. The lower layer is composed of one, or two or more Ti compound layers made up of a Ti compound of Ti and at least one element selected from the group consisting of C, N, O and B. The intermediate layer contains α-type Al2O3. The upper layer contains a compound represented by following formula (1): Ti(C1-x-yNxOy) (1). An average thickness of the coating layer on the flank face side is 5.0 μm more and 30.0 μm or less. A first cross section positioned at a distance of up to 1 μm towards the substrate, from an interface of the intermediate layer and the upper layer side, the cross section being parallel to an interface of the substrate and the lower layer, satisfies the condition represented by following expression (i): RSA≥40 (i). A second cross section, positioned at a distance of up to 1 μm from the interface of the upper layer and the intermediate layer side towards an interface on the opposite side, the cross section being parallel to the interface of the substrate and the lower layer, satisfies the condition represented by following expression (ii): RSB≥40 (ii). The intermediate layer is exposed at least at the honing section.

公开(公告)号：US20220072633A1

公开(公告)日：2022-03-10

申请号：US17406038

申请日：2021-08-18

申请人： TUNGALOY CORPORATION

发明人： Takahiro ASO

IPC分类号： B23C5/20

摘要： Provided is a milling tool that allows a life of a tool main body to be elongated. The milling tool includes a replaceable cutting insert and a tool main body in which at least one insert seat that fixes the cutting insert is provided on a distal end side. The tool main body has a reinforcing wall covering at least a portion of the cutting insert when the cutting insert that is in a state of being fixed to the tool main body is viewed from the distal end side.