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公开(公告)号：US20180243841A1
公开(公告)日：2018-08-30
申请号：US15757517
申请日：2016-05-27
发明人： Yoshitaka Nakanohara
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2251/04 , B23B2251/043 , B23B2251/082 , B23B2251/122 , B23B2251/408 , B23B2251/44
摘要： The drill of the present invention includes: a drill main body; a chip discharge flute extending from a tip flank face of the drill main body toward a rear end side of the drill main body and formed on an outer circumference of a tip part of the drill main body; a margin formed at an opposite side of the chip discharge flute in the drill rotation direction; and a body clearance formed at an opposite side of the margin in the drill rotation direction and having an outer diameter smaller than that of the margin. A surface roughness of the body clearance at least along a circumferential direction is equal to or less than a surface roughness of the margin.
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公开(公告)号：US09284787B2
公开(公告)日：2016-03-15
申请号：US13901917
申请日：2013-05-24
申请人： Black & Decker Inc.
CPC分类号： E21B10/44 , B23B51/02 , B23B2226/75 , B23B2251/18 , B23B2251/44 , B28D1/146 , E21B10/58
摘要： A cutting head for a drill bit comprises four substantially identically shaped cutting arms extending radially from a common central axial point, each cutting arm comprising a cutting edge extending, outwardly and axially backwards from the common central axial point. The cutting edges are equianguiarly spaced apart from each other about the central axis of the cutting head. Each cutting, arm further comprises a side chamfer extending between its radially outer face and its rotationally trailing side face.
摘要翻译： 用于钻头的切割头包括从公共中心轴向点径向延伸的四个基本相同形状的切割臂，每个切割臂包括从公共中心轴向点向外并且轴向向后延伸的切割边缘。 切割边缘围绕切割头的中心轴线彼此等距地间隔开。 每个切割臂还包括在其径向外表面和其旋转后侧面之间延伸的侧倒角。
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公开(公告)号：US08622663B1
公开(公告)日：2014-01-07
申请号：US13291833
申请日：2011-11-08
申请人： Afzaal Mir
发明人： Afzaal Mir
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2215/04 , B23B2226/27 , B23B2226/61 , B23B2228/36 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2251/44
摘要： A drill bit having features rendering it particularly effective in cutting holes in carboresin laminates of the type used in the aircraft industry. A pair of diametrically opposite lands slope radially inward at the working end of the bit to a pair of cutting edges disposed at an obtuse angle to one another and forming an efficient cutting tip. Notches with sloping ramps adjacent the cutting edges efficiently convey cut material to adjacent flutes. The lands curve radially inward between their full diameter portion and their cutting tips and the junction of the curved portion and the constant diameter portion of the lands is machined to provide a more gradual transition.
摘要翻译： 具有特征的钻头，其特别有效地用于在飞机工业中使用的类型的碳纤维层压板中切割孔。 一对直径相对的平台在钻头的工作端处径向向内倾斜到以彼此钝角设置的一对切削刃，并形成有效的切削尖端。 具有与切削刃相邻的倾斜坡道的凹口有效地将切割材料传送到相邻的凹槽。 在它们的全直径部分和它们的切割尖端之间径向向内弯曲的区域被加工，并且加工了弯曲部分和平坦直径部分的连接点以提供更渐进的过渡。
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公开(公告)号：US08052361B2
公开(公告)日：2011-11-08
申请号：US12341455
申请日：2008-12-22
申请人： Afzaal Mir
发明人： Afzaal Mir
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2215/04 , B23B2226/27 , B23B2226/61 , B23B2228/36 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2251/44
摘要： A drill bit having features rendering it particularly effective in cutting holes in carboresin laminates of the type used in the aircraft industry. A pair of diametrically opposite lands slope radially inward at the working end of the bit to a pair of cutting edges disposed at an obtuse angle to one another and forming an efficient cutting tip. Notches with sloping ramps adjacent the cutting edges efficiently convey cut material to adjacent flutes. The lands curve radially inward between their full diameter portion and their cutting tips and the junction of the curved portion and the constant diameter portion of the lands is machined to provide a more gradual transition.
摘要翻译： 具有特征的钻头，其特别有效地用于在飞机工业中使用的类型的碳纤维层压板中切割孔。 一对直径相对的平台在钻头的工作端处径向向内倾斜到以彼此钝角设置的一对切削刃，并形成有效的切削尖端。 具有与切削刃相邻的倾斜坡道的凹口有效地将切割材料传送到相邻的凹槽。 在它们的全直径部分和它们的切割尖端之间径向向内弯曲的区域被加工，并且加工了弯曲部分和平坦直径部分的连接点以提供更渐进的过渡。
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公开(公告)号：US07832966B2
公开(公告)日：2010-11-16
申请号：US11564112
申请日：2006-11-28
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2251/14 , B23B2251/18 , B23B2251/44 , Y10T408/906 , Y10T408/9065 , Y10T408/9097
摘要： The present invention is directed to a helical drill configuration that allows substantially flat bottomed holes to be machined. At the cutting end of the body member, there are at least two cutting edges that are symmetrically oriented on opposing sides of the rotational axis of the drill. In an embodiment of the invention, first and second cutting edge portions form a continuous surface which provides strength and tool stability. The height of the second portions of each of the cutting edges remains relatively consistent along the horizontal for formation of a generally flat bottom hole. In the embodiment, a center point is defined by two sloped peak surfaces. A central straight chisel edge is formed by the intersection of the two sloped peak surfaces. The first cutting edge section extends from the chisel edge to the second cutting edge section. The first cutting edge section for both cutting edges is formed by symmetrically thinning the two peak surface. In the invention, stress at the center portion of the helical cutting tool is limited by the chisel edge and first sections of the cutting edge near the center portion having a balanced geometry. The balanced geometry of the helical drill also prevents the drill from wobbling and creating deviations in the hole being formed. The chisel edge may blend with a first curvilinear cutting edge and the first curvilinear cutting edge may also have a positive rake to promote cutting.
摘要翻译： 本发明涉及一种允许基本平坦的有底孔加工的螺旋钻构型。 在主体构件的切割端处，至少有两个切削刃对称地定向在钻头的旋转轴线的相对侧上。 在本发明的一个实施例中，第一和第二切削刃部分形成一个提供强度和刀具稳定性的连续表面。 每个切削刃的第二部分的高度沿着水平线保持相对一致以形成大致平坦的底部孔。 在本实施例中，中心点由两个倾斜的峰面限定。 中心的直凿边缘由两个倾斜的峰面相交而形成。 第一切削刃部分从凿子边缘延伸到第二切削刃部分。 用于两个切削刃的第一切削刃部分通过对称地使两个峰值表面变薄而形成。 在本发明中，螺旋切削工具的中心部分处的应力受到凿子边缘和靠近中心部分具有平衡几何形状的切削刃的第一部分的限制。 螺旋钻的平衡几何形状还可防止钻头摆动并产生正在形成的孔中的偏差。 凿子边缘可以与第一曲线切割边缘混合，并且第一曲线切割边缘也可以具有正耙子以促进切割。
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公开(公告)号：US07645102B2
公开(公告)日：2010-01-12
申请号：US11755840
申请日：2007-05-31
申请人： Takuji Nomura , Makoto Sakai
发明人： Takuji Nomura , Makoto Sakai
IPC分类号： B23B51/00
CPC分类号： B23B51/0486 , B23B2251/44 , B23B2251/56 , Y10S408/705 , Y10T408/5586 , Y10T408/89 , Y10T408/909
摘要： The invention provides a drill head for deep hole machining capable of raising circularity and straightness of a hole and improving precision of hole machining. In the drill head for deep hole machining constituted by fixing a cutting blade to a tip surface of a head body and fixing guide pads to a periphery of a tip of the head body, the length Lm of a margin, which is formed at a tip side of a periphery of the cutting blade in a drill rotating direction, in an axis direction is made substantially the same as the length Lp of the guide pads in the axis direction, and a top end and rear end of the margin are substantially aligned with a top end and rear end of the guide pads, respectively, in a circumference direction.
摘要翻译： 本发明提供一种用于深孔加工的钻头，其能够提高孔的圆度和平直度，并提高孔加工的精度。 在用于深孔加工的钻头中，其通过将切割刀片固定到头部主体的尖端表面并将引导垫固定到头部主体的末端的周边而构成，边缘的长度Lm形成在尖端 沿钻头旋转方向的切割刀片的周边的轴线方向的长度Lp与引导垫的轴向长度Lp基本相同，并且边缘的顶端和后端基本上与 引导垫的顶端和后端分别在圆周方向上。
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公开(公告)号：US20080019787A1
公开(公告)日：2008-01-24
申请号：US11491637
申请日：2006-07-24
申请人： Karthikeyan Sampath , Wangyang Ni
发明人： Karthikeyan Sampath , Wangyang Ni
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2222/28 , B23B2226/27 , B23B2226/275 , B23B2226/31 , B23B2228/10 , B23B2251/04 , B23B2251/14 , B23B2251/18 , B23B2251/44 , Y10T408/9097
摘要： A diamond coated drill capable of drilling holes in fiber reinforced composite materials. The drill is made from a tungsten carbide (WC) substrate with cemented cobalt (Co) in a range between about 3 to 10 wt. % and a diamond coating having a thickness in a range between 3 to 20 microns. The drill includes a shank, a longitudinal axis and includes two flutes at a helix angle that is in a range between 25 and 35 degrees with respect to the axis. A margin width is maintained between about 5 to 10 percent of the drill diameter. A body clearance diameter is maintained at between about 92 to 96 percent of the drill diameter. A web thickness before splitting is about 20 to 30 percent of the drill diameter. A clearance angle or lip relief angle is between about 10 and 20 degrees. A chisel edge angle is between about 105 and 120 degrees. A chisel edge length is up to about 0.035 mm. A splitting angle is between about 130 and 150 degrees. A notch angle is between about 30 and 40 degrees with respect to the drill axis. A notch rake angle lies between about −5 and 10 degrees. A split point angle is between about 70 and 100 degrees, and preferably about 90 degrees.
摘要翻译： 一种金刚石涂层钻孔机，可在纤维增强复合材料中钻孔。 该钻头由具有约3至10重量％的粘结钴（Co）的碳化钨（WC）基材制成。 ％和金刚石涂层，其厚度在3至20微米的范围内。 钻头包括柄部，纵向轴线，并且包括相对于轴线在25度和35度之间的螺旋角度的两个凹槽。 边缘宽度保持在钻头直径的约5％至10％之间。 身体间隙直径保持在钻头直径的约92％至96％之间。 分裂前的腹板厚度为钻头直径的约20％至30％。 间隙角度或唇部解除角度在约10度和20度之间。 凿边角度在约105度和120度之间。 凿边长度可达0.035毫米。 分裂角在约130和150度之间。 切口角相对于钻头轴线在约30度和40度之间。 切口前角位于约-5度和10度之间。 分裂角度在约70度和100度之间，优选地约为90度。
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8.发明申请Drill having construction for reducing thrust load in drilling operation, and method of manufacturing the drill 失效具有减少钻井作业中的推力负荷的结构的钻具以及钻头的制造方法公开(公告)号：US20030188895A1
公开(公告)日：2003-10-09
申请号：US10123134
申请日：2002-04-17
申请人： OSG CORPORATION
IPC分类号： E21B010/44
CPC分类号： B23B51/02 , B23B2250/12 , B23B2251/14 , B23B2251/44 , Y10T408/9097
摘要： A drill including a shank portion and a cylindrical body portion contiguous to each other. The cylindrical body portion includes (a) primary cutting edges and secondary cutting edges formed in its axially distal end portion such that each of the secondary cutting edges is located on a radially inner side of the corresponding primary cutting edge; (b) primary rake surfaces of the primary cutting edges and secondary rake surfaces of the secondary cutting edges; and (c) inclined surfaces each of which extends from the corresponding secondary rake surface to a periphery of the cylindrical body portion, and is inclined such that an axial distance between each of the inclined surfaces and the shank portion is reduced as viewed in a direction substantially perpendicular to the corresponding secondary cutting edge, from the corresponding secondary rake surface toward the periphery of the cylindrical body portion. Each of the secondary rake surfaces and the corresponding secondary cutting edge are formed together with each other in a web thinning. Each of the secondary rake surfaces and the corresponding inclined surface are connected to each other without a step therebetween.
摘要翻译： 一种钻头，其包括相互邻接的柄部分和圆柱体部分。 圆柱体部分包括：（a）在其轴向远端部分中形成的主切削刃和次切削刃，使得每个次切削刃位于相应的主切削刃的径向内侧; （b）次切削刃的主切削刃和二次前刀面的主前刀面; 和（c）倾斜表面，每个倾斜表面从相应的二次前倾表面延伸到圆柱形主体部分的周边，并且倾斜使得每个倾斜表面和柄部分之间的轴向距离从方向 基本上垂直于相应的次切割刃从对应的次级前刀面朝向圆柱形主体部分的周边。 二次前刀面和相应的次切削刃中的每一个在幅材变薄中彼此一起形成。 二次前倾面和相应的倾斜表面中的每一个彼此连接而没有其间的台阶。
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公开(公告)号：US20190193226A1
公开(公告)日：2019-06-27
申请号：US16287196
申请日：2019-02-27
申请人： Kennametal Inc.
CPC分类号： B24B3/242 , B23B51/02 , B23B2251/245 , B23B2251/248 , B23B2251/406 , B23B2251/44 , B23C5/10 , B23C2210/241 , B23C2210/40 , B23C2210/44 , B24B3/06 , B24B3/24 , B24B19/04 , Y10T407/1948 , Y10T408/9046
摘要： The radial run-out tool (2), particularly a drill or a cutter, has a basic body (12) extending in an axial direction (4) and comprises at least two chip grooves (14), to which a guide chamfer (22) is connected in the rotational direction (24), with a ridge (15) being formed between them. A radial clearance is connected to the guide chamfer (22). In order to enable simple and economical production of such type of radial run-out tool (2), an unprocessed rod (30) is ground non-concentrically, in a first process step, such that a radius (R) of the unprocessed rod (30) varies, depending on the angle, between a maximum radius (R2) and a minimum radius (R1). In a second process step, the chip grooves (14) are grounded down such that the guide chamfers (22) are formed at the positions with the maximum radius (R2) and the radius (R) is subsequently reduced downstream of the respective guide chamfer (22) in order to form the radial clearance (28).
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公开(公告)号：US20160129506A1
公开(公告)日：2016-05-12
申请号：US14536233
申请日：2014-11-07
发明人： Martin Stumpp , Alexander Zurn , Peter Kehrle , Tobias Berg
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2226/75 , B23B2251/046 , B23B2251/241 , B23B2251/245 , B23B2251/406 , B23B2251/44 , B23B2251/446 , Y10T408/9097
摘要： A drill with a drill flute (12) includes symmetrical fluted lands (20) helically extend around a core, wherein grooves (18) remain between the fluted lands, said grooves having a width (72) that exceeds the spine thickness or width (24) of the fluted lands (20), and wherein the grooves (18) comprise a convex core reinforcement (22) at the groove bottom thereof. The width (24) of the fluted lands (20) at the drill head side end (16) is smaller than at the shank side end (14) of the drill helix (12), and at least increases in certain areas. The core reinforcement (22) at the drill head side end (16) is more convex than at the shank side end (14), thus has larger radii (40, 42).
摘要翻译： 具有钻凿（12）的钻具包括对称的凹槽平台（20），围绕芯螺旋地延伸，其中凹槽（18）保留在凹槽区域之间，所述凹槽的宽度（72）超过脊柱厚度或宽度（24 ），并且其中所述凹槽（18）在其凹槽底部包括凸形芯加强件（22）。 在钻头侧端部（16）处的带槽纹的平台（20）的宽度（24）比在钻螺旋（12）的柄侧端部（14）处的宽度（24）小，并且在某些区域中至少增加。 在钻头侧端部（16）处的芯部加强件（22）比在柄侧端部（14）处更加凸出，因此具有较大的半径（40,42）。
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