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公开(公告)号：US09839984B2
公开(公告)日：2017-12-12
申请号：US14459794
申请日：2014-08-14
申请人： Kennametal Inc.
发明人： Steven R. Burns
摘要： A method of making a cutting tap includes: providing an elongate tap body having an axial forward end, an axial rearward end and a central longitudinal axis; securing the axial rearward end of the tap body in a grinding machine; and forming in the axial forward end of the tap body a correction grind and a main flute in one continuous grinding operation. A cutting tap made by the invention is also provided.
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公开(公告)号：US20050271486A1
公开(公告)日：2005-12-08
申请号：US10862870
申请日：2004-06-07
申请人： Willard Henderer , Alan Barrows , Steven Burns , Dennis Greene
发明人： Willard Henderer , Alan Barrows , Steven Burns , Dennis Greene
CPC分类号： B23G5/06 , B23G2200/26 , B23G2225/12 , B23G2225/32 , B23G2225/36 , B23G2225/44 , B23G2225/52 , B23P15/52 , Y10T408/78 , Y10T408/9048
摘要： A low torque tap includes a shank portion with a driving square and a thread cutting portion. The thread cutting portion includes a threaded body with one or more asymmetrical straight flutes that run essentially parallel to a longitudinal axis of the tap. The thread cutting portion also includes one or more short angular flutes or spiral points and a tapered chamfer. For tapping steel alloys, the cutting edges of the straight flutes and the spiral points have a rake or chordal hook angle of between about 5 and 15 degrees. For tapping ferrous materials, the tap is made from molybdenum-enriched high-speed steel and may be coated with a wear-resistant, friction-reducing layer. A second, outer layer, such as molybdenum disulfide, may be applied over the wear-reducing layer for further reduction in friction. For tapping non-ferrous materials, the tap may be coated with a layer of material containing carbon.
摘要翻译： 低扭矩分接头包括具有驱动方形和螺纹切削部分的柄部分。 螺纹切割部分包括具有一个或多个基本上平行于龙头的纵向轴线延伸的不对称直槽的螺纹体。 螺纹切削部分还包括一个或多个短角度凹槽或螺旋点和锥形倒角。 对于钢铁合金，直槽和螺旋点的切削刃具有约5至15度之间的耙齿或弦杆钩角。 对于黑色金属材料，龙头由富钼高速钢制成，可以涂覆耐磨，减摩层。 可以在磨损减少层上施加第二外层，例如二硫化钼，以进一步减少摩擦。 对于攻丝有色金属材料，龙头可以涂覆一层含碳材料。
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公开(公告)号：US20100092257A1
公开(公告)日：2010-04-15
申请号：US12250570
申请日：2008-10-14
CPC分类号： B23G5/06 , B23G2200/30 , B23P15/52 , B24B3/18 , B24B19/04 , Y10T408/904 , Y10T408/9046 , Y10T408/9048
摘要： A cutting tap includes a body having an axial forward end and an axial rearward end and a central longitudinal axis. The body has a fluted section at the axial forward end. The fluted section includes a chamfered fluted section extending from the axial forward end of the body and terminating at a first full cutting thread. The chamfered fluted section includes a first cutting thread located a first distance from the axial forward end of the body, and a second cutting thread located a second distance from the axial forward end of the body. The second distance is greater than the first distance. The chamfered fluted section is shaped such that a thickness of a section of material removed by the second cutting thread is smaller than a thickness of a section of material removed by the first cutting thread. A method of making the cutting tap is also disclosed.
摘要翻译： 切割龙头包括具有轴向前端和轴向后端以及中心纵向轴线的主体。 主体在轴向前端有一个槽纹部分。 槽纹部分包括从主体的轴向前端延伸并且终止于第一全切割螺纹的倒角的槽纹部分。 倒角的槽纹部分包括位于距离主体的轴向前端的第一距离的第一切割螺纹和位于距离主体的轴向前端的第二距离的第二切割螺纹。 第二距离大于第一距离。 倒角的槽纹部分的形状使得由第二切割螺纹去除的部分材料的厚度小于由第一切割螺纹去除的部分的厚度。 还公开了一种制造切割龙头的方法。
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公开(公告)号：US4016795A
公开(公告)日：1977-04-12
申请号：US623612
申请日：1975-10-20
申请人： Peter John Gill
发明人： Peter John Gill
CPC分类号： F16B25/103 , B21K1/56 , B23P15/32 , B23P15/52 , F16B15/00 , F16B25/0084 , Y10T408/9093
摘要： A self-drilling and self-tapping fastener, particularly suitable for use in relatively thick metal, which is made from a headed blank by a method including pressing into the cylindrical free end of the blank a pair of straight flutes, by dies which are closed together on a line which is acutely angled to both the leading and trailing walls of the flutes. The flutes are inclined in opposite directions relative to the screw axis and are positioned on opposite sides of the screw. The tip is machined off to a V-form, to provide a ridge angularly advanced about the axis of the screw relative to the cutting edges of the flutes. Further machining may remove metal from the sides of the drill point between the flutes to provide flats and the drill point may be turned to a circular cross-section to provide sharp well-supported cutting edges for improved wear resistance. The drill point may taper overall, being of smallest diameter adjacent the threaded fastener shank.
摘要翻译： 一种自钻自攻紧固件，特别适用于相对较厚的金属，其由头部坯料制成，该方法包括通过封闭的模具将一对直的凹槽压入坯料的圆柱形自由端 一起在与凹槽的前壁和后壁成锐角的直线上。 凹槽相对于螺杆轴线在相反方向倾斜并且位于螺钉的相对侧上。 尖端被加工成V形，以提供相对于凹槽的切割边缘围绕螺钉的轴线成角度地前进的脊。 进一步加工可以从凹槽之间的钻头的侧面移除金属以提供平面，并且钻点可以转到圆形横截面，以提供锋利的良好支撑的切削刃，以改善耐磨性。 钻尖可以整体变细，与螺纹紧固件柄相邻的最小直径。
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公开(公告)号：US1918626A
公开(公告)日：1933-07-18
申请号：US49715430
申请日：1930-11-21
申请人： WILT JR ABRAM D
发明人： WILT JR ABRAM D
CPC分类号： B23B11/00 , B23P15/52 , Y10S29/092 , Y10T29/5129 , Y10T82/2514 , Y10T409/300448 , Y10T409/300504 , Y10T409/305264
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公开(公告)号：US20240058906A1
公开(公告)日：2024-02-22
申请号：US18270828
申请日：2021-02-26
申请人： OSG CORPORATION
发明人： Teruya HISADA , Takayuki NAKAJIMA
摘要： A method of producing a nitrided cut tap that includes a nitrogen diffusion layer. The method includes (a) a nitriding step for forming the nitrogen diffusion layer in which nitrogen atoms contained in an atmospheric gas are diffused from a surface of a base material of the cut tap under heat, such that the nitrogen diffusion layer has a thickness ranging from 10 μm to 30 μm; and (b) a honing step for rounding a cutting edge portion by colliding abrasive particles against a local part of the cutting edge portion of the base material of the cut tap that has been subjected to the nitriding step, such that a difference between a thickness of the nitrogen diffusion layer in the cutting edge portion and a thickness of the nitrogen diffusion layer in flank and rake surfaces sandwiching the cutting edge portion, is not larger than 5 μm.
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公开(公告)号：US20190291196A1
公开(公告)日：2019-09-26
申请号：US16316417
申请日：2016-08-09
申请人： OSG CORPORATION
发明人： Kazumitsu Harada , Yousuke Suzuki
摘要： A thread forming tap includes a partial thread. The partial thread is provided, in the axis direction view, with a protrusion formed so as to protrude in the radial direction and a clearance section formed so as to have a smaller diameter than the protrusion, and as a result of the foregoing, if a thread forming tap rotates in a state where the inner circumferential surface of a pilot hole and the partial thread come into contact, the protrusion of the partial thread can be caused to engage with the inner circumferential surface of the pilot hole. Due to this configuration, rubbing in a state where the partial thread is pressed against the inner circumferential surface of the pilot hole can be suppressed, and as a result, chipping of the partial thread can be prevented.
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公开(公告)号：US4358911A
公开(公告)日：1982-11-16
申请号：US217300
申请日：1980-12-17
申请人： Emil Vogelsanger
发明人： Emil Vogelsanger
CPC分类号： B24B3/22 , B23G1/36 , Y10T409/300616 , Y10T409/300672
摘要： A relief thread grinding machine for making screw taps wherein a workpiece 10 is clamped to a resiliently mounted body 5 of a longitudinally adjustable sled 1. The body carries a follower wheel 17 which bears on a cam roller 15 rotatably mounted on the sled. The surface of the cam roller is eccentrically lobed so that when it is axially moved varying oscillation strokes of the body 5 are produced. The cam roller can be axially adjusted as needed during the grinding process so that the amount of relief grind can be changed. In this manner it is possible to provide the conical thread on the lead end of a tap with a different relief grind than the generally cylindrical and posteriorly weak conical thread on the guide end of the tap.
摘要翻译： 一种用于制造螺纹丝锥的浮雕螺纹磨床，其中工件10被夹紧到纵向可调节的滑板1的弹性安装的主体5.主体承载着可转动地安装在滑轨上的凸轮15上的从动轮17。 凸轮滚子的表面是偏心的，从而当其轴向移动时产生主体5的变化的振荡冲程。 在研磨过程中可以根据需要轴向调节凸轮辊，以便可以改变浮雕磨削量。 以这种方式，可以在龙头的引导端上提供锥形螺纹，其具有与在水龙头的引导端上的大致圆柱形和后向弱的圆锥形螺纹不同的浮雕研磨。
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公开(公告)号：US11007590B2
公开(公告)日：2021-05-18
申请号：US16316417
申请日：2016-08-09
申请人： OSG CORPORATION
发明人： Kazumitsu Harada , Yousuke Suzuki
摘要： A thread forming tap includes a partial thread. The partial thread is provided, in the axis direction view, with a protrusion formed so as to protrude in the radial direction and a clearance section formed so as to have a smaller diameter than the protrusion, and as a result of the foregoing, if a thread forming tap rotates in a state where the inner circumferential surface of a pilot hole and the partial thread come into contact, the protrusion of the partial thread can be caused to engage with the inner circumferential surface of the pilot hole. Due to this configuration, rubbing in a state where the partial thread is pressed against the inner circumferential surface of the pilot hole can be suppressed, and as a result, chipping of the partial thread can be prevented.
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公开(公告)号：US20110112436A1
公开(公告)日：2011-05-12
申请号：US12927158
申请日：2010-11-08
申请人： Robert J. Jones , Richard Kana , John B. Rossman
发明人： Robert J. Jones , Richard Kana , John B. Rossman
CPC分类号： A61B10/025 , A61B10/0283 , A61B17/1655 , A61B17/864 , A61B2010/0258 , A61B2090/062 , Y10T29/4998
摘要： A distraction pin for aspiration of a bone fluid and marrow. The pin includes an elongate metallic shaft of generally uniform diameter having a proximate end. The proximate end of the shaft includes an adaptor (attachment means) and a longitudinal bore extending from the distal end to the proximate end. The distal end of the shaft includes threading adapted for screwing the shaft into bone. The distal end also includes at least two fenestrations transverse to the longitudinal bore.
摘要翻译： 用于吸入骨液和骨髓的牵引针。 销包括具有近似端部的大致均匀直径的细长金属轴。 轴的近端包括适配器（附接装置）和从远端延伸到近端的纵向孔。 轴的远端包括适于将轴旋入骨头的螺纹。 远端还包括横向于纵向孔的至少两个窗孔。
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