公开(公告)号：US09604286B2

公开(公告)日：2017-03-28

申请号：US14759532

申请日：2013-01-29

申请人： Kazuteru Takai

发明人： Kazuteru Takai

IPC分类号： B23B51/06 ,  B23B51/02

CPC分类号： B23B51/06 ,  B23B51/02 ,  B23B2250/12 ,  B23B2251/408 ,  B23B2260/082 ,  Y10T408/455

摘要： A drill with a cutting fluid supply hole includes: a tool main-body with an axial end cutting-edge, a portion having a discharge flute on a main-body distal end side portion, and a cutting fluid supply hole, the hole having a fan-shaped cross section defined by a front inner-wall surface located along a main-body radial direction on the front side in the drill rotation direction, a rear inner-wall surface located along the radial-direction on the rear side in the drill rotation direction and facing the front inner-wall surface in a main-body circumferential direction, an outer circumferential inner-wall surface made up of a partially cylindrical surface around a drill center line, and an inner circumferential inner-wall surface made up of a partially cylindrical surface around the center line with a curvature radius smaller than that of the outer circumferential inner-wall surface and facing the outer circumferential inner-wall surface in the radial direction.

公开(公告)号：US09492877B2

公开(公告)日：2016-11-15

申请号：US14342029

申请日：2011-09-06

申请人： Kazuteru Takai ,  Kazutoyo Itoh ,  Hiroyuki Amano

发明人： Kazuteru Takai ,  Kazutoyo Itoh ,  Hiroyuki Amano

IPC分类号： B23B51/02 ,  B23B51/06

CPC分类号： B23B51/02 ,  B23B51/06 ,  B23B2222/28 ,  B23B2251/04 ,  B23B2251/08 ,  B23B2251/12 ,  B23B2251/125 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2251/241 ,  B23B2251/40 ,  Y10T408/909 ,  Y10T408/9095 ,  Y10T408/9097

摘要： A drill includes: a chip discharge flute opened in a tip surface; and a cutting edge formed at an intersecting portion between an inner wall surface of the chip discharge flute on a side of a drill rotation direction and a tip flank formed on the tip surface, the cutting edge being made up of a concavely-curved cutting edge portion formed on an inner circumferential side and a convexly-curved cutting edge portion formed on an outer circumferential side, a cross section orthogonal to an axial center having a first convex curve corresponding to the convexly-curved cutting edge portion and a first concave curve corresponding to the concavely-curved cutting edge portion intersecting with each other.

摘要翻译： 钻头包括：在尖端表面开口的排屑槽; 以及切削刃，其形成在所述切屑排出槽的内壁面与钻头旋转方向一侧的交叉部分与形成在所述刀片面上的前端面之间，所述切削刃由凹曲面切削刃 形成在内周侧上的部分和形成在外周侧的凸曲面切割边缘部分，与具有对应于凸曲面切割边缘部分的第一凸曲线的轴向中心正交的横截面和对应于第一凹曲线的第一凹曲线 到相互交叉的凹曲面切削刃部。

公开(公告)号：US20140294529A1

公开(公告)日：2014-10-02

申请号：US14353399

申请日：2011-11-04

申请人： Kazuteru Takai

发明人： Kazuteru Takai

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2222/80 ,  B23B2224/24 ,  B23B2228/10 ,  B23B2251/04 ,  B23B2251/082 ,  B23B2251/085 ,  B23B2251/122 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2251/40 ,  B23B2251/406 ,  Y10T408/9095

摘要： A drill including: a chip discharge flute; and a cutting edge, the cutting edge being made up of a concavely-curved cutting edge portion formed on an inner circumferential side and a convexly-curved cutting edge portion formed on an outer circumferential side, the drill further including a cross section orthogonal to an axial center having a first convex curve corresponding to the convexly-curved cutting edge portion and a first concave curve corresponding to the concavely-curved cutting edge portion intersecting with each other, a flank following the cutting edge on the tip surface having an orthogonal clearance angle β formed within an angular range of 9 to 20 degrees, and a ridgeline of the cutting edge having a chamfer formed with a width CW within a range of 0.002D to 0.02D (where D is a drill diameter).

摘要翻译： 钻头包括：排屑槽; 切削刃由形成在内周侧的凹曲面切削刃部和形成在外周侧的凸曲面切削刃部构成，所述钻头还包括与 轴向中心具有对应于凸曲面切割边缘部分的第一凸曲线和对应于彼此相交的凹曲面切割边缘部分的第一凹曲线，与尖端表面上的切割边缘之后的侧面具有正交间隙角 ＆bgr 形成在9〜20度的角度范围内，并且切削刃的棱线具有形成为宽度CW在0.002D至0.02D（D​​为钻头直径）的范围内的倒角。

公开(公告)号：US20150104265A1

公开(公告)日：2015-04-16

申请号：US14395877

申请日：2012-05-30

申请人： Kazutoyo Itoh ,  Kazuteru Takai

发明人： Kazutoyo Itoh ,  Kazuteru Takai

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2251/082 ,  B23B2251/14 ,  B23B2251/202 ,  Y10T408/9097

摘要： A three-flute drill includes: three chip discharge flutes; and three cutting edges each having concavely-curved and convexly-curved cutting edge portions, an axially perpendicular cross-sectional view orthogonal to an axial center having first convex and concave curves respectively corresponding to the convexly-curved and concavely-curved cutting edge portions intersecting each other, in the axially perpendicular cross-sectional view, a concave amount of the first concave curve being within a range of 0.01 D to 0.05 D in terms of a drill cutting diameter relative to a reference line connecting an outer circumferential point, at which a drill outer circumferential portion intersects with the first convex curve, and the axial center, and in the axially perpendicular cross-sectional view, a rake chamfer width being a distance from an intersection between a straight line through the intersection and orthogonal to the reference line and the reference line, to the outer circumferential point, and being within 0.005 D to 0.06 D.

摘要翻译： 三槽钻头包括：三个排屑槽; 和三个切削刃，每个切削刃具有凹曲曲面和凸曲面的切削刃部分，与轴向正交的轴向垂直横截面视图，该轴向中心具有分别对应于凸曲面和凹曲曲线的切削刃部分的第一凸曲线和凹曲线， 在轴向垂直截面图中，第一凹曲线的凹入量相对于连接外圆周点的参考线以钻头切割直径为0.01D至0.05D的范围内， 钻头外圆周部分与第一凸曲线相交，并且轴向中心，并且在轴向垂直截面图中，前角倒角宽度是与通过交叉点的直线和与基准线正交的交点的距离 和参考线到外圆周点，在0.005 D到0.06之间。

公开(公告)号：US09713846B2

公开(公告)日：2017-07-25

申请号：US14395877

申请日：2012-05-30

申请人： Kazutoyo Itoh ,  Kazuteru Takai

发明人： Kazutoyo Itoh ,  Kazuteru Takai

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2251/082 ,  B23B2251/14 ,  B23B2251/202 ,  Y10T408/9097

摘要： A three-flute drill includes: three chip discharge flutes; and three cutting edges each having concavely-curved and convexly-curved cutting edge portions, an axially perpendicular cross-sectional view orthogonal to an axial center having first convex and concave curves respectively corresponding to the convexly-curved and concavely-curved cutting edge portions intersecting each other, in the axially perpendicular cross-sectional view, a concave amount of the first concave curve being within a range of 0.01D to 0.05D in terms of a drill cutting diameter relative to a reference line connecting an outer circumferential point, at which a drill outer circumferential portion intersects with the first convex curve, and the axial center, and in the axially perpendicular cross-sectional view, a rake chamfer width being a distance from an intersection between a straight line through the intersection and orthogonal to the reference line and the reference line, to the outer circumferential point, and being within 0.005D to 0.06D.

公开(公告)号：US09511424B2

公开(公告)日：2016-12-06

申请号：US14353399

申请日：2011-11-04

申请人： Kazuteru Takai

发明人： Kazuteru Takai

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2222/80 ,  B23B2224/24 ,  B23B2228/10 ,  B23B2251/04 ,  B23B2251/082 ,  B23B2251/085 ,  B23B2251/122 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2251/40 ,  B23B2251/406 ,  Y10T408/9095

摘要： A drill including: a chip discharge flute; and a cutting edge, the cutting edge being made up of a concavely-curved cutting edge portion formed on an inner circumferential side and a convexly-curved cutting edge portion formed on an outer circumferential side, the drill further including a cross section orthogonal to an axial center having a first convex curve corresponding to the convexly-curved cutting edge portion and a first concave curve corresponding to the concavely-curved cutting edge portion intersecting with each other, a flank following the cutting edge on the tip surface having an orthogonal clearance angle β formed within an angular range of 9 to 20 degrees, and a ridgeline of the cutting edge having a chamfer formed with a width CW within a range of 0.002D to 0.02D (where D is a drill diameter).

摘要翻译： 钻头包括：排屑槽; 切削刃由形成在内周侧的凹曲面切削刃部和形成在外周侧的凸曲面切削刃部构成，所述钻头还包括与 轴向中心具有对应于凸曲面切割边缘部分的第一凸曲线和对应于彼此相交的凹曲面切割边缘部分的第一凹曲线，与尖端表面上的切割边缘之后的侧面具有正交间隙角 β形成在9至20度的角度范围内，切削刃的棱线具有形成为宽度CW在0.002D至0.02D（D​​为钻头直径）的范围内的倒角。

公开(公告)号：US20160031016A1

公开(公告)日：2016-02-04

申请号：US14775462

申请日：2013-03-26

申请人： Kazuteru TAKAI

发明人： Kazuteru TAKAI

IPC分类号： B23B51/06 ,  B23B51/02

CPC分类号： B23B51/06 ,  B23B51/02 ,  B23B2250/12 ,  B23B2251/202 ,  Y10T408/455

摘要： A three-flute drill having: a tool main body with cutting edges at an axially distal end thereof, a flute portion having discharge flutes in a distal-end side portion of the body, and a cutting fluid supply hole for supplying fluid toward the edges, a rear inner wall surface on the radial direction on a rear side in the drill rotation direction and opposed to the front inner wall surface in a drill circumferential direction, an outer circumferential inner wall surface made up of a partially cylindrical surface whose center lies on an axis of the drill, and an inner circumferential inner wall surface having a partially cylindrical surface whose center lies on the drill axis and opposed to the outer circumferential inner wall surface in the radial direction, the inner circumferential inner wall having a curvature radius smaller than that of the outer circumferential inner wall surface.

摘要翻译： 一种三槽钻，具有：具有在其轴向前端的切割刃的工具主体，具有位于主体的前端侧部分中的排出槽的槽部，以及用于朝向边缘供给流体的切削液供给孔 ，在钻头旋转方向的后侧的径向方向上的后内壁面，与钻头周向的前内侧壁面相对的外周面，由中心在其上的部分圆筒状的表面构成的外周内壁面 所述钻头的轴线以及具有中心位于所述钻头轴线上且与所述径向外周面的内周面相对的部分圆筒面的内周面的内周面，所述内周内壁的曲率半径小于 外圆周内表面。

公开(公告)号：US20150321267A1

公开(公告)日：2015-11-12

申请号：US14759532

申请日：2013-01-29

申请人： Kazuteru TAKAI

发明人： Kazuteru TAKAI

IPC分类号： B23B51/06 ,  B23B51/02

CPC分类号： B23B51/06 ,  B23B51/02 ,  B23B2250/12 ,  B23B2251/408 ,  B23B2260/082 ,  Y10T408/455

摘要： A drill with a cutting fluid supply hole includes: a tool main-body with an axial end cutting-edge, a portion having a discharge flute on a main-body distal end side portion, and a cutting fluid supply hole, the hole having a fan-shaped cross section defined by a front inner-wall surface located along a main-body radial direction on the front side in the drill rotation direction, a rear inner-wall surface located along the radial-direction on the rear side in the drill rotation direction and facing the front inner-wall surface in a main-body circumferential direction, an outer circumferential inner-wall surface made up of a partially cylindrical surface around a drill center line, and an inner circumferential inner-wall surface made up of a partially cylindrical surface around the center line with a curvature radius smaller than that of the outer circumferential inner-wall surface and facing the outer circumferential inner-wall surface in the radial direction.

摘要翻译： 具有切削液供给孔的钻头包括：具有轴向端部切削刃的工具主体，在主体前端侧部分具有排出槽的部分和切削液供给孔，该孔具有 由沿着钻头旋转方向的前侧的主体径向的前内壁面形成的扇形截面，位于钻头的后侧的径向的后内壁面 旋转方向并且面向主体周向的前内壁表面，由围绕钻中心线的部分圆柱形表面构成的外周内壁表面和由内圆周表面构成的内周内壁表面 围绕中心线的部分圆柱形表面，其曲率半径小于外周内壁表面的曲率半径，并且在径向方向上面向外周内壁表面。

公开(公告)号：US20140219737A1

公开(公告)日：2014-08-07

申请号：US14342029

申请日：2011-09-06

申请人： Kazuteru Takai ,  Kazutoyo Itoh ,  Hiroyuki Amano

发明人： Kazuteru Takai ,  Kazutoyo Itoh ,  Hiroyuki Amano

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B51/06 ,  B23B2222/28 ,  B23B2251/04 ,  B23B2251/08 ,  B23B2251/12 ,  B23B2251/125 ,  B23B2251/14 ,  B23B2251/18 ,  B23B2251/241 ,  B23B2251/40 ,  Y10T408/909 ,  Y10T408/9095 ,  Y10T408/9097

摘要： A drill includes: a chip discharge flute opened in a tip surface; and a cutting edge formed at an intersecting portion between an inner wall surface of the chip discharge flute on a side of a drill rotation direction and a tip flank formed on the tip surface, the cutting edge being made up of a concavely-curved cutting edge portion formed on an inner circumferential side and a convexly-curved cutting edge portion formed on an outer circumferential side, a cross section orthogonal to an axial center having a first convex curve corresponding to the convexly-curved cutting edge portion and a first concave curve corresponding to the concavely-curved cutting edge portion intersecting with each other.

摘要翻译： 钻头包括：在尖端表面开口的排屑槽; 以及切削刃，其形成在所述切屑排出槽的内壁面与钻头旋转方向一侧的交叉部分与形成在所述刀片面上的前端面之间，所述切削刃由凹曲面切削刃 形成在内周侧上的部分和形成在外周侧的凸曲面切割边缘部分，与具有对应于凸曲面切割边缘部分的第一凸曲线的轴向中心正交的横截面和对应于第一凹曲线的第一凹曲线 到相互交叉的凹曲面切削刃部。

公开(公告)号：US09623490B2

公开(公告)日：2017-04-18

申请号：US14775462

申请日：2013-03-26

申请人： Kazuteru Takai

发明人： Kazuteru Takai

IPC分类号： B23B51/06 ,  B23B51/02

CPC分类号： B23B51/06 ,  B23B51/02 ,  B23B2250/12 ,  B23B2251/202 ,  Y10T408/455

摘要： A three-flute drill having: a tool main body with cutting edges at an axially distal end thereof, a flute portion having discharge flutes in a distal-end side portion of the body, and a cutting fluid supply hole for supplying fluid toward the edges, a rear inner wall surface on the radial direction on a rear side in the drill rotation direction and opposed to the front inner wall surface in a drill circumferential direction, an outer circumferential inner wall surface made up of a partially cylindrical surface whose center lies on an axis of the drill, and an inner circumferential inner wall surface having a partially cylindrical surface whose center lies on the drill axis and opposed to the outer circumferential inner wall surface in the radial direction, the inner circumferential inner wall having a curvature radius smaller than that of the outer circumferential inner wall surface.