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11. 发明授权

US11833594B2 Cutting tool 有权
公开(公告)号：US11833594B2
公开(公告)日：2023-12-05
申请号：US17850486
申请日：2022-06-27
申请人： TUNGALOY CORPORATION
发明人： Takahiro Aso
IPC分类号： B23C5/28 , B23C5/10
CPC分类号： B23C5/10 , B23C5/28
摘要： A cutting tool includes a grip part and a cutting part. The grip part and the cutting part have a channel for guiding fluid supplied from outside to an outflow port. The channel includes a plurality of first channels that extend at least partially parallel to a rotational center axis, and second channels that extend from the first channels toward cutting edges of cutting inserts. In the cutting tool, the number of first channels is smaller than the number of cutting edges arranged in a circumferential direction.

12. 发明公开

US20230347423A1 BODY FOR GUN DRILL 审中-公开
公开(公告)号：US20230347423A1
公开(公告)日：2023-11-02
申请号：US18300338
申请日：2023-04-13
申请人： TUNGALOY CORPORATION
发明人： Hiroya SHIKAMA
IPC分类号： B23B51/04 , B23B51/06
CPC分类号： B23B51/04 , B23B51/066
摘要： Provided is a body capable of suppressing the bending of the body during machining. A body includes: a first mounting part serving as a portion that is provided on a leading end side and has a cutting edge mounted thereon; and a second attachment part serving as a portion that is provided at a position different from a position of the first mounting part along a circumferential direction and has a guide pad attached thereto on the leading end side. One discharging groove that extends from the leading end side to a base end side and is used to guide and discharge a fluid to the base end side is formed on an outer peripheral surface of the body, and at least a part of the discharging groove is bent.

13. 发明授权

US11772166B2 Cutting insert 有权
公开(公告)号：US11772166B2
公开(公告)日：2023-10-03
申请号：US17643209
申请日：2021-12-08
申请人： TUNGALOY CORPORATION
发明人： Yusuke Suzuki , Yasutake Sasaki
IPC分类号： B23B27/16 , B23B27/22
CPC分类号： B23B27/16 , B23B27/22 , B23B2200/081 , B23B2240/08
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 allow so-called freedom of feed during cutting to be improved. A cutting edge body of a cutting insert includes a front cutting edge formed on one end side in a longitudinal direction, the front cutting edge being a cutting edge formed on an intersecting edge between a peripheral side surface and an upper surface of the cutting edge body having a prismatic shape, a side cutting edge formed on one end side in a lateral direction, a recessed part provided in the upper surface of the cutting edge body to be subsequent to the side cutting edge in the lateral direction, and a wall part having a wavy wall surface formed in a portion of the recessed part and a discrete wall surface formed at a position between the wavy wall surface and the side cutting edge and including a plurality of surfaces which are discrete along the longitudinal direction.

14. 发明授权

US11698118B2 Friction material and brake pad 有权
公开(公告)号：US11698118B2
公开(公告)日：2023-07-11
申请号：US17118099
申请日：2020-12-10
申请人： TUNGALOY CORPORATION
发明人： Mitsuo Kamei
IPC分类号： F16D69/02 , F16D69/00
CPC分类号： F16D69/027 , F16D2069/002 , F16D2200/0043 , F16D2200/0065 , F16D2200/0069
摘要： The present invention provides a friction material and a brake pad having excellent wear resistance while exhibiting a high friction coefficient under high-temperature and high-speed conditions. A friction material containing: 40 mass % or more and 80 mass % or less of a matrix containing at least one kind selected from the group consisting of Ni and Fe; 10 mass % or more and 30 mass % or less of inorganic particles containing zircon particles, titania particles, and mullite particles; and 10 mass % or more and 30 mass % or less of a lubricant containing at least one kind selected from the group consisting of graphite, molybdenum disulfide, boron nitride and calcium fluoride, wherein a content of the zircon particles is 30 vol % or more and 36 vol % or less, a content of the titania particles is 30 vol % or more and 36 vol % or less, and a content of the mullite particles is 30 vol % or more and 36 vol % or less with respect to a total content of 100 vol % of the zircon particles, the titania particles, and the mullite particles.

15. 发明申请

US20230026334A1 COATED CUTTING TOOL 有权
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.

16. 发明申请

US20230001488A1 HOLDER AND CUTTING TOOL 有权
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.

17. 发明申请

US20220274184A1 CUTTING INSERT 有权
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.

18. 发明申请

US20220266349A1 CUTTING TOOL, CUTTING INSERT AND HOLDING TOOL 有权
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.

19. 发明授权

US11421307B2 Cemented carbide and coated cemented carbide, and tool including same 有权
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.

20. 发明申请

US20220212269A1 HOLDER 有权
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.

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