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1. 发明申请

US20180272433A1 TOOL 审中-公开
公开(公告)号：US20180272433A1
公开(公告)日：2018-09-27
申请号：US15890663
申请日：2018-02-07
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI , Syunsuke MIYAZAWA , Yuichiro FUKUSHIMA
IPC分类号： B23B27/14 , B23B27/20 , C04B35/5831 , C04B35/63
CPC分类号： B23B27/148 , B23B27/145 , B23B27/20 , B23B2200/0428 , B23B2200/0433 , B23B2200/0452 , B23B2200/3618 , B23B2222/28 , B23B2224/04 , B23B2224/08 , B23B2224/12 , B23B2224/24 , B23B2224/28 , B23B2224/32 , B23B2224/36 , B23B2226/125 , C04B35/5831 , C04B35/6303 , C04B2235/3217 , C04B2235/3244 , C04B2235/3813 , C04B2235/3821 , C04B2235/3843 , C04B2235/3847 , C04B2235/3856 , C04B2235/3873 , C04B2235/3886 , C04B2235/762
摘要： A cutting edge tip of a cubic boron nitride sintered body has improved joint strength to a substrate of a cemented carbide. A cutting edge tip of a cubic boron nitride sintered body has improved crater wear resistance. A tool 10 of the present invention includes a substrate 12 of a cemented carbide and a cutting edge tip 14 of a cubic boron nitride sintered body joined to the substrate 12. The cutting edge tip 14 has a thickness covering an upper surface 12a to a lower surface 12b of the substrate 12. The cubic boron nitride sintered body contains 50 volume % or more and 95 volume % or less of cubic boron nitride and 5 volume % or more and 50 volume % or less of a binder phase. The cubic boron nitride has an average grain size of 1.0 μm or more and 6.0 μm or less.

2. 发明公开

US20230166334A1 CUTTING TOOL 审中-公开
公开(公告)号：US20230166334A1
公开(公告)日：2023-06-01
申请号：US17821339
申请日：2022-08-22
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23B27/16
CPC分类号： B23B27/16
摘要： The present invention provides a cutting tool which has a flat top face but still has excellent chip control. The cutting tool includes: a peripheral side face; a top face which is a flat top face constituting a part of an upper surface that is depressed except for the portion of the top face; a cutting edge that is formed at least on a ridge line of a corner R connecting two linear ridge lines, out of ridge lines where the peripheral side face and top face cross; and a fan-shaped rake portion including ridge portions and groove portions, which are disposed alternately and are both depressed so as to be inclined from the corner R, where the crossing line with the top face appears in a wave form, toward a pivot portion which is a center of radial portions.

3. 发明申请

US20220274185A1 CUTTING INSERT 有权
公开(公告)号：US20220274185A1
公开(公告)日：2022-09-01
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
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.

4. 发明公开

US20240100607A1 CUTTING INSERT 审中-公开
公开(公告)号：US20240100607A1
公开(公告)日：2024-03-28
申请号：US18452791
申请日：2023-08-21
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23B27/16
CPC分类号： B23B27/1611 , B23B2200/24
摘要： A cutting insert capable of performing groove machining while efficiently fragmenting chip is provided. A cutting insert 10 includes a front cutting edge 111, a pair of side cutting edges 113, a pair of corner cutting edges 112 each connecting the front cutting edge and a corresponding one of the side cutting edges, corner rake surfaces 122 extending from the corner cutting edges 112, and a protrusion part 150 protruding from the corner rake surfaces 122 and provided with a flat boss surface 160 at a leading end. Corner wall surfaces 180 extending from the boss surface 160 toward the corner rake surfaces 122 are formed at the protrusion part 150. At least a part of the corner wall surfaces 180 has a tilt angle of 40° or larger relative to the boss surface 160.

5. 发明公开

US20240100605A1 CUTTING INSERT 审中-公开
公开(公告)号：US20240100605A1
公开(公告)日：2024-03-28
申请号：US18452128
申请日：2023-08-18
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23B27/14
CPC分类号： B23B27/14 , B23B2200/321 , B23B2226/315 , B23B2265/08
摘要： To provide a cutting insert that readily fragmentizes chips, and that has excellent durability.
At least a cutting part of a cutting insert is formed of a sintered compact. The sintered compact includes a chip breaker that is a recessed portion in which a partial region of a cutting part upper surface is depressed downward. The chip breaker includes a downward inclined surface, an upward inclined surface, a jutting portion that juts out along a first axial line that passes through a distant end of a cutting edge, and a stepped surface that adjoins the jutting portion in a Y axis direction orthogonal to the first axial line. An upper end of the jutting portion is formed at a height of an upper stage. The stepped surface is formed at a height of an intermediate stage at a part closest to the first axial line.

6. 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.

7. 发明申请

US20220388071A1 CUTTING INSERT 有权
公开(公告)号：US20220388071A1
公开(公告)日：2022-12-08
申请号：US17716013
申请日：2022-04-08
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI , Ryuichi SAJI
IPC分类号： B23B27/14
摘要： A cutting insert that suppresses softening of joint material in a joint surface between a sintered body and a base body to improve the joint strength, and that enables size reduction of the sintered body, is provided. The cutting insert includes a sintered body having a cutting edge, and a base body having a leading end where the sintered body is joined via a braze material. The sintered body includes a front surface on a leading side, an upper surface connected to the front surface and forming the cutting edge with the front surface along a connecting edge with the front surface, a bottom surface opposite the upper surface, a back surface opposite the front surface, and two side surfaces. The sintered body and base body are joined together in a joint surface including the bottom surface and back surface of the sintered body. The joint surface in side view has a step-like shape with a leading side thereof being lower than a trailing side thereof.

8. 发明申请

US20220347768A1 CUTTING TOOL 有权
公开(公告)号：US20220347768A1
公开(公告)日：2022-11-03
申请号：US17670013
申请日：2022-02-11
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23C5/10
摘要： There is provided a cutting tool in which chip control is improved. A cutting edge member includes a first wall surface which includes a concave surface which is formed to be depressed in a direction away from an intersection point of an imaginary plane and a corner portion and toward the center of a cutting insert in an end view when viewed from a direction facing an end surface, a second wall surface which includes a convex surface which is provided to be connected to the first wall surface at a position spaced apart from the imaginary plane and is protruded in a direction away from the center of the cutting insert in the end view, a third wall surface which includes a convex surface which is provided to be connected to the first wall surface at a position spaced apart from the imaginary plane on an opposite side to the second wall surface across the imaginary plane and is protruded in a direction away from the center of the cutting insert in the end view, and a fourth wall surface which is provided in an area between the first wall surface and the intersection point in the end view, includes a convex surface which is protruded in a direction away from the center of the cutting insert in the end view, and has a height smaller than heights of the second wall surface and the third wall surface in a side view when viewed from a direction facing a side surface.

9. 发明申请

US20160214180A1 CUTTING TOOL HAVING BREAKER WALL SURFACES SEPARATED BY A CONVEX PORTION 审中-公开
标题翻译：切割工具具有断路器壁表面，由凸块分隔
公开(公告)号：US20160214180A1
公开(公告)日：2016-07-28
申请号：US14916064
申请日：2014-12-02
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23B27/14
CPC分类号： B23B27/141 , B23B27/18 , B23B2200/0423 , B23B2200/0447 , B23B2200/081 , B23B2200/087 , B23B2226/125 , B23B2226/31 , B23B2226/315
摘要： A cutting tool includes a cutting edge member. The cutting edge member forms a corner portion. The cutting edge member includes a cutting edge formed at the intersection of a rake surface and a flank, at least two breaker wall surfaces and at least one convex portion. The cutting edge includes a first cutting edge and a second cutting edge connected thereto. The second cutting edge is situated at the corner portion. Each breaker wall surface is formed to extend along the cutting edge. The convex portion is formed between the two breaker wall surfaces spaced from each other to protrude relatively toward the cutting edge side. A part of the convex portion is situated around a connecting portion of the first and second cutting edges.
摘要翻译：切削工具包括切削刃部件。切削刃部件形成角部。切削刃部件包括形成在前刀面和侧面的交叉处的切削刃，至少两个破碎机壁面和至少一个凸部。切削刃包括与其连接的第一切削刃和第二切削刃。第二个切割刃位于拐角处。每个断路器壁表面形成为沿着切割边缘延伸。凸起部分形成在彼此间隔开的两个断路器壁面之间，相对于切削刃侧突出。凸部的一部分位于第一和第二切削刃的连接部分周围。

10. 发明申请

US20180085831A1 CUTTING TOOL 审中-公开
公开(公告)号：US20180085831A1
公开(公告)日：2018-03-29
申请号：US15557645
申请日：2016-11-22
申请人： TUNGALOY CORPORATION
发明人： Yasutake SASAKI
IPC分类号： B23B27/10 , B23B27/04 , B23B29/04
CPC分类号： B23B27/10 , B23B27/04 , B23B27/08 , B23B29/043 , B23B2220/126
摘要： A cutting tool comprises: a plate member which is provided, at a leading end thereof, edge parts; a support member which supports the plate member so as to cause the edge parts to be projected; and a coolant supply part which has an ejection port and which ejects, from the ejection port, fluid that cools the edge parts. The support member has a non-contact surface which forms a gap with respect to an outer side surface of the plate member. The gap is opened toward a side where the edge parts are provided. The ejection port is arranged in the gap, and the ejection port ejects the fluid toward the plate member.

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