公开(公告)号：US20230173594A1

公开(公告)日：2023-06-08

申请号：US17998041

申请日：2021-05-10

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA

IPC分类号： B23B51/02 ,  B23B35/00

CPC分类号： B23B51/02 ,  B23B35/00 ,  B23B2251/202 ,  B23B2251/14

摘要： A drill has a body extended along a rotation axis from a first end toward a second end. The body has an outer peripheral surface, a cutting edge, a flank surface, and a flute. The cutting edge has a first cutting edge, a second cutting edge extended from the first cutting edge, and a third cutting edge extended from the second cutting edge. The flank surface has a first flank surface which is located along the first cutting edge and has a first clearance angle, a second flank surface which is located along the second cutting edge and has a second clearance angle, and a third flank surface which is located along the third cutting edge and has a third clearance angle. The second clearance angle is smaller than each of the first clearance angle and the third clearance angle.

公开(公告)号：US20220314344A1

公开(公告)日：2022-10-06

申请号：US17629780

申请日：2020-07-22

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA

IPC分类号： B23B51/08 ,  B23B51/02

摘要： A drill may include a base. The base may be extended from a first end to a second end. The base may include a first part, a second part, a step, a first cutting edge, a first flute, a second cutting edge and a second flute. The step may be located between the first part and the second part, and may have a larger outer diameter as coming closer to the second part. The first flute may be extended from the first cutting edge. The second flute may be extended from the second cutting edge. The step may include a first step and a second step. The first step may connect to the first flute. The second step may connect to the second flute. A first end part in the first step may be located further away from the first end than a second end part in the second step.

公开(公告)号：US20240109137A1

公开(公告)日：2024-04-04

申请号：US18262373

申请日：2022-01-20

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA

IPC分类号： B23C5/10

CPC分类号： B23C5/10 ,  B23C2210/0485 ,  B23C2210/40

摘要： A rotary tool in a non-limiting embodiment of the present disclosure has a columnar shape. A first flute has a first helix angle having a positive value. A second flute has a second helix angle having a negative value. An outer peripheral surface includes a first outer peripheral surface and a second outer peripheral surface. A second outer peripheral surface is located on a rear side in a rotation direction of a rotation axis with respect to the first outer peripheral surface. The first outer peripheral surface includes a first flank surface extending along a first cutting edge, and a second flank surface extending along a second cutting edge. The first flank surface includes a first enlarged part whose width increases as coming closer to the second flank surface.

公开(公告)号：US20170341159A1

公开(公告)日：2017-11-30

申请号：US15520951

申请日：2015-10-21

申请人： KYOCERA Corporation

发明人： Hiroshi OGAWA

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B51/00 ,  B23B2228/10 ,  B23B2251/085 ,  B23B2251/14

摘要： A drill is provided with a body having a rod shape configured to rotate about a rotational axis, a cutting edge that is located at a tip portion of the body and extends from an outer periphery of the body toward the rotational axis when viewed from the tip portion, a flank located at the tip portion and disposed along the cutting edge, a covering layer that covers at least the tip portion of the body, and one or more recessed portions disposed on the flank at positions close to the cutting edge.

公开(公告)号：US20220080516A1

公开(公告)日：2022-03-17

申请号：US17416516

申请日：2019-12-24

申请人： KYOCERA Corporation

发明人： Hiroshi OGAWA

IPC分类号： B23B51/06 ,  B23C5/10

摘要： A rotary tool may include a base extended along a rotation axis from a first end toward a second end. The base may include a cutting part and a flow path located inside the base. The cutting part may include a first flute and a first ridgeline. The first flute may be spirally extended from the first cutting edge. The first ridgeline may be a ridgeline formed by the first flute and an outer peripheral surface adjacent to the first flute on a rear side in a rotation direction. The flow path may include a first sub flow path extended from a main flow path toward a side of the second end. A first angle formed by the rotation axis and the first sub flow path may be smaller than a helix angle formed by the rotation axis and the first ridgeline.

公开(公告)号：US20210205899A1

公开(公告)日：2021-07-08

申请号：US17042560

申请日：2019-03-27

申请人： KYOCERA Corporation

发明人： Hiroshi OGAWA ,  Satoshi TETSUKAWA

IPC分类号： B23B51/02

摘要： A drill may include a body extending from a first end toward a second end, and the body may include an outer peripheral surface and a cutting edge. The cutting edge may include a first cutting edge and a second cutting edge. The second cutting edge may be positioned closer to the second end and the outer peripheral surface than the first cutting edge. The second cutting edge may include a first part, a second part and a third part. The second part may be positioned closer to the outer peripheral surface than the first part and may be positioned closer to the second end as close to the first part. The third part may be positioned closer to the first cutting edge than the first part and may be positioned closer to the second end as close to the first part.

公开(公告)号：US20160207120A1

公开(公告)日：2016-07-21

申请号：US14913184

申请日：2014-08-26

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA ,  Satoshi TETSUKAWA

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2251/046 ,  B23B2251/404 ,  B23B2251/406 ,  Y10T408/9097

摘要： A drill (1) based on an embodiment of the present invention is equipped with: a first chip discharge flute that is provided on an outer periphery of a drill body and spirally extends around a rotational axis from a first cutting edge toward a rear end of the drill body; a second chip discharge flute that is provided on the outer periphery of the drill body and spirally extends around the rotational axis from a second cutting edge toward the rear end of the drill body; and an auxiliary flute that is provided on the outer periphery of the drill body and extends along the second chip discharge flute on a front side in a rotating direction of the rotational axis, wherein a rear end of the second chip discharge flute extends further toward the rear end of the drill body than the first chip discharge flute.

摘要翻译： 基于本发明的实施例的钻（1）装备有：第一屑排出槽，其设置在钻体的外周上并且从旋转轴线从第一切削刃向后端延伸 钻体; 第二排屑槽，其设置在所述钻体的外周上并且从所述钻体的第二切削刃向所述后端向所述旋转轴线螺旋状地延伸; 以及辅助槽，其设置在所述钻体的外周上，并且沿着所述旋转轴的旋转方向在前侧沿所述第二排屑槽延伸，其中所述第二排屑槽的后端进一步朝向所述第二排屑槽延伸， 钻头的后端比第一个排屑槽长。

公开(公告)号：US20180243840A1

公开(公告)日：2018-08-30

申请号：US15747776

申请日：2016-07-28

申请人： Kyocera Corporation

发明人： Hiroshi OGAWA

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2226/31 ,  B23B2251/08 ,  B23B2251/122 ,  B23B2251/40 ,  Y10T408/9097

摘要： In an embodiment, a drill includes a bar-shaped body rotatable around a central axis. The body includes a first surface located at a first end, a second surface intersecting with the first surface on a front side in a rotation direction, and a cutting edge located at an intersection of the first surface and the second surface. The second surface includes a first region located along the cutting edge, and a second region located on a front side in the rotation direction with respect to the first region. The second surface has a concave shape in a cross section orthogonal to the central axis.

公开(公告)号：US20170225241A1

公开(公告)日：2017-08-10

申请号：US15329604

申请日：2015-07-22

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2226/275 ,  B23B2251/04 ,  B23B2251/08 ,  B23B2251/14 ,  B23B2251/40 ,  B23B2251/48

摘要： A drill includes a bar-shaped drill body, a major cutting edge which is located at a front end of the drill body and has a straight-line region in a front view, a rake surface located along the major cutting edge, and a chip discharge flute being extended spirally around a rotation axis of the drill body in a direction from the rake surface toward a rear end of the drill body. The rake surface has a flat region located along the straight-line region.

公开(公告)号：US20160167139A1

公开(公告)日：2016-06-16

申请号：US14906807

申请日：2014-07-16

申请人： KYOCERA CORPORATION

发明人： Hiroshi OGAWA

IPC分类号： B23B51/02 ,  C23F1/30 ,  C23C14/22 ,  B23C5/10 ,  C23C16/44

CPC分类号： B23B51/02 ,  B23B2222/28 ,  B23B2226/31 ,  B23B2226/315 ,  B23B2228/105 ,  B23C5/10 ,  B23C2222/28 ,  B23C2226/31 ,  B23C2226/315 ,  B23C2228/10 ,  C23C14/024 ,  C23C14/0641 ,  C23C14/22 ,  C23C16/44 ,  C23C30/005 ,  C23F1/00 ,  C23F1/30 ,  C23G1/20 ,  Y10T408/78 ,  Y10T408/81

摘要： A cutting tool based on an embodiment of the present invention is provided with a cylindrical main body section which is made of a cobalt-containing cemented carbide alloy and is rotatable about the central axis thereof, a cutting edge which is provided at at least one of the tip and the periphery of the main body section, a chip discharge groove which extends from the cutting edge toward the rear end of the main body section, and a coating layer which is made of diamond and covers the cutting edge, wherein the cobalt content of the surface of the main body section at the part coated with the coating layer is less than the cobalt content of the surface of the main body section at parts other than the part coated with the coating layer.

摘要翻译： 基于本发明的实施例的切削工具设置有由含钴硬质合金合金制成并且可围绕其中心轴线旋转的圆柱形主体部分，切削刃设置在至少一个 主体部分的尖端和周边，从切割边缘向主体部分的后端延伸的切屑排出槽以及由金刚石制成并覆盖切割边缘的涂层，其中钴含量 在涂覆有涂层的部分处的主体部分的表面的厚度小于在涂覆有涂层的部分以外的部分处的主体部分的表面的钴含量。