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公开(公告)号：USD960214S1
公开(公告)日：2022-08-09
申请号：US29716419
申请日：2019-12-10
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公开(公告)号：USD977540S1
公开(公告)日：2023-02-07
申请号：US29796251
申请日：2021-06-23
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公开(公告)号：US20190054544A1
公开(公告)日：2019-02-21
申请号：US15763911
申请日：2017-08-24
发明人： Gaku Harada , Yoshinori Tanigawa , Satoru Kukino
摘要： A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a rake face, a flank face, and a cutting edge. The flank face is contiguous to the rake face. The cutting edge is provided as a ridge line between the rake face and the flank face. The radius of curvature of the cutting edge is 2 μm or more and 8 μm or less.
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公开(公告)号：US11541464B2
公开(公告)日：2023-01-03
申请号：US16499049
申请日：2018-01-10
发明人： Gaku Harada
IPC分类号： B23B27/20 , B23K26/361 , B23K26/38 , B23K26/0622 , B23K26/40 , B23K26/53 , B23K101/20 , B23P15/28 , B23K103/00
摘要： A method for manufacturing a cutting tool according to one embodiment is a method for manufacturing a cutting tool, the cutting tool including a base material and a diamond single crystal material fixed to the base material, the diamond single crystal material having a rake face, a flank face continuous with the rake face, and a cutting edge formed by a ridgeline serving as a boundary between the rake face and the flank face. The method for manufacturing a cutting tool according to one form of the present disclosure includes a flank face irradiation step of applying a laser to the diamond single crystal material along the cutting edge from a side of the flank face. The laser has a pulse width of 1×10−12 seconds or less and a peak output of less than 1 W in the flank face irradiation step.
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公开(公告)号：US11052466B2
公开(公告)日：2021-07-06
申请号：US15763911
申请日：2017-08-24
发明人： Gaku Harada , Yoshinori Tanigawa , Satoru Kukino
摘要： A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a rake face, a flank face, and a cutting edge. The flank face is contiguous to the rake face. The cutting edge is provided as a ridge line between the rake face and the flank face. The radius of curvature of the cutting edge is 2 μm or more and 8 μm or less.
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公开(公告)号：US11033970B2
公开(公告)日：2021-06-15
申请号：US16767797
申请日：2019-10-16
发明人： Gaku Harada , Satoru Kukino , Takashi Harada
摘要： A cutting insert includes a bottom surface, a top surface opposite to the bottom surface, and a cutting edge portion. The cutting edge portion is located on the same side as the top surface. The cutting edge portion is formed of a sintered material including cubic boron nitride particles. A volume ratio of the cubic boron nitride particles to the sintered material is more than or equal to 50 percent. The cutting edge portion includes a rake face, a flank face contiguous to the rake face, and a cutting edge located along a ridgeline between the rake face and the flank face. The rake face is inclined toward the bottom surface so that a distance from the rake face to the bottom surface decreases gradually toward the cutting edge.
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公开(公告)号：US10717136B2
公开(公告)日：2020-07-21
申请号：US16096525
申请日：2017-03-08
发明人： Kouji Shimanuki , Gaku Harada , Yasuyuki Kanada
摘要： The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
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公开(公告)号：US20190143419A1
公开(公告)日：2019-05-16
申请号：US16096525
申请日：2017-03-08
发明人： Kouji Shimanuki , Gaku Harada , Yasuyuki Kanada
摘要： The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
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公开(公告)号：US20190054545A1
公开(公告)日：2019-02-21
申请号：US15764125
申请日：2017-08-25
发明人： Gaku Harada , Yoshinori Tanigawa , Satoru Kukino
IPC分类号： B23B27/20 , B23C5/16 , B23D77/00 , B23K26/352 , B23P15/46
摘要： A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and the flank face is provided with a plurality of recesses and a projection. The projection is formed by arranging the edges of adjacent recesses in contact with each other.
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