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203 条记录 (耗时 0.014 秒)

    Perforating drill
    22.
    发明申请
    Perforating drill 有权
    穿孔钻

    公开(公告)号：US20040052597A1

    公开(公告)日：2004-03-18

    申请号：US10275370

    申请日：2003-05-23

    发明人： Francois Defougeres ,  Pierre Rigolet ,  Sylvain Lamy

    IPC分类号： B23B051/02

    CPC分类号： E21B10/445 ,  B23B51/02 ,  B23B2226/75 ,  B23B2251/406 ,  Y10T408/9097

    摘要： The invention concerns a drill comprising a generally cylindrical body (2), tipped with a head (3) and provided, over at least part of its length, generally spiral evaporating grooves (5). The groove(s) (5) is/are delimited, over at least part of its/their length, by a succession of facets (7), attached to one another, and linked to one another by sharp edges or by radius blends (8).

    摘要翻译： 本发明涉及一种钻头，其包括大致圆柱形的主体（2），其具有头部（3），并且在其长度的至少一部分上提供大致螺旋形的蒸发槽（5）。 凹槽（5）在它/它们的长度的至少一部分上由一系列小平面（7）限定，彼此连接并且通过锐利边缘或半径混合物相互连接（ 8）。

    Twist drill
    23.
    发明授权
    Twist drill 有权
    麻花钻

    公开(公告)号：US06571890B2

    公开(公告)日：2003-06-03

    申请号：US09814238

    申请日：2001-03-21

    申请人： Josef Obermeier

    发明人： Josef Obermeier

    IPC分类号： E21B1044

    CPC分类号： E21B10/445 ,  B23B51/02 ,  B23B2226/75 ,  B23B2251/406 ,  B23B2260/112 ,  E21B10/44

    摘要： A twist drill (1) has a plurality of of protuberances (9) arranged in the grooves (6) of the helix (4) which project radially outward partially into the groove cross section to prevent clumps.

    摘要翻译： 麻花钻（1）具有布置在螺旋（4）的凹槽（6）中的多个突起（9），其部分地径向向外突出到槽横截面中以防止团块。

    Twist drill
    24.
    发明申请
    Twist drill 有权
    麻花钻

    公开(公告)号：US20010023783A1

    公开(公告)日：2001-09-27

    申请号：US09814238

    申请日：2001-03-21

    发明人： Josef Obermeier

    IPC分类号： E21B017/22

    CPC分类号： E21B10/445 ,  B23B51/02 ,  B23B2226/75 ,  B23B2251/406 ,  B23B2260/112 ,  E21B10/44

    摘要： A twist drill (1) has a plurality of of protuberances (9) arranged in the grooves (6) of the helix (4) which project radially outward partially into the groove cross section to prevent clumps.

    摘要翻译： 麻花钻（1）具有布置在螺旋（4）的凹槽（6）中的多个突起（9），其部分地径向向外突出到槽横截面中以防止团块。

    Drill bit with debris conveying flute
    25.
    发明授权
    Drill bit with debris conveying flute 失效
    钻头用碎屑输送长笛

    公开(公告)号：US5641028A

    公开(公告)日：1997-06-24

    申请号：US513372

    申请日：1995-08-10

    申请人： Michael R. Resendez ,  James B. Mason

    发明人： Michael R. Resendez ,  James B. Mason

    IPC分类号： B23B51/00 ,  B21H3/10 ,  B23B51/02 ,  B23P15/32 ,  B28D1/14 ,  E21B10/44 ,  E21B10/00

    CPC分类号： B23B51/02 ,  B21H3/10 ,  B23P15/32 ,  E21B10/445 ,  B23B2226/75 ,  B23B2251/406 ,  Y10T408/9097

    摘要： A cutting tool or drill bit (10) has a shank (12) with two ends. A chucking end (14) is on one end of the shank (12) and a cutting end (16) is on the other end of the shank (12). At least one flute (30) is formed on the shank (12) between the chucking (14) and cutting ends (16). The flute (30) includes a web (36) and a debris channel (32). The web (36) includes a first (38) and second (40) surface continuous with a debris channel side wall (34). The first surface (38) is substantially parallel to the shank longitudinal axis (18) and the second surface (40) is on an angle from about 100.degree. to about 120.degree. with respect to the shank longitudinal axis (18). The second surface forms the base of the debris channel or groove (32) with the debris channel side wall (34). The debris channel side wall (34) is on an angle from about 10.degree. to about 20.degree. with respect to the shank longitudinal axis (18). A ratio exists between the axial length of the first surface to the axial length of debris channel surface of about 2:1 to about 4:1. Also disclosed is a method of cold rolling a blank (60) to form the above drill bit (10).

    摘要翻译： 切割工具或钻头（10）具有带有两端的杆（12）。 夹持端（14）位于柄（12）的一端，切割端（16）位于柄部（12）的另一端。 在夹头（14）和切割端（16）之间的柄部（12）上形成至少一个凹槽（30）。 凹槽（30）包括网（36）和碎片通道（32）。 腹板（36）包括与碎屑通道侧壁（34）连续的第一（38）和第二（40）表面。 第一表面（38）基本上平行于柄纵向轴线（18），并且第二表面（40）相对于柄纵向轴线（18）为大约100°至大约120°的角度。 第二表面与碎屑通道侧壁（34）形成碎屑通道或凹槽（32）的基部。 碎片通道侧壁（34）相对于柄纵轴线（18）为大约10°至大约20°的角度。 在第一表面的轴向长度与碎片通道表面的轴向长度之间存在约2:1至约4:1的比率。 还公开了冷轧坯料（60）以形成上述钻头（10）的方法。

    Twist drill
    26.
    发明授权
    Twist drill 失效
    麻花钻

    公开(公告)号：US5230593A

    公开(公告)日：1993-07-27

    申请号：US863373

    申请日：1992-04-03

    申请人： Koujiro Imanaga ,  Shinichi Nakamura ,  Hideji Hosono ,  Yoshiyuki Yanase

    发明人： Koujiro Imanaga ,  Shinichi Nakamura ,  Hideji Hosono ,  Yoshiyuki Yanase

    IPC分类号： B23B51/02

    CPC分类号： B23B51/02 ,  B23B2251/18 ,  B23B2251/241 ,  B23B2251/406 ,  Y10T408/78 ,  Y10T408/9097

    摘要： A twist drill includes a cylindrical body having an axis of rotation therethrough and having a forward end which contacts a workpiece. The body has a spiral flute formed in an outer peripheral surface thereof so as to extend spirally along a length thereof to the forward end and a land disposed adjacent to the flute. The flute has a first wall facing in the direction of rotation of the body and a second wall extending from an inner end of the first wall to the outer periphery of the body. The first wall terminates at the forward end in a first cutting lip having a radially outermost end disposed on the outer periphery of the body. The second wall is concavely shaped when viewed from the forward end and formed so that, assuming a first line extending from the outermost end perpendicular to a second line which connects the outermost end and the axis of the body, the maximum distance between the first line and the second wall is set to range between 0.45 D and 0.65 D, wherein D is a diameter of the body.

    摘要翻译： 麻花钻包括具有穿过其中的旋转轴线的圆柱体，并且具有接触工件的前端。 本体具有形成在其外周表面中的螺旋槽，以便沿其长度螺旋地延伸到前端，以及邻近该凹槽设置的平台。 凹槽具有面向主体的旋转方向的第一壁和从第一壁的内端延伸到主体的外周的第二壁。 第一壁在前端处终止于具有设置在主体的外周上的径向最外端的第一切割唇缘中。 第二壁从前端观察时为凹形，并且形成为使得从最外端垂直于连接最外端和主体轴线的第二线延伸的第一线，第一线之间的最大距离 并且第二壁设定在0.45D和0.65D之间的范围，其中D是主体的直径。

    All cutting edge drill
    28.
    发明授权
    All cutting edge drill 失效
    所有切削钻头

    公开(公告)号：US4116580A

    公开(公告)日：1978-09-26

    申请号：US786024

    申请日：1977-04-08

    申请人： Roy F. Hall ,  Elmer C. Kramer

    发明人： Roy F. Hall ,  Elmer C. Kramer

    IPC分类号： B23B51/02 ,  B23B51/00 ,  B26D1/12

    CPC分类号： B23B51/02 ,  B23B2251/18 ,  B23B2251/241 ,  B23B2251/406 ,  Y10T407/1948 ,  Y10T408/9097

    摘要： An all cutting edge drill in which the cutting edges include the cutting edges across the point, at the shoulders between the point cutting edges and the side flute edges, and along the flute edges, all of which avoids local wear areas and gains higher surface speed and a better finish and hole size control. The drill having the all cutting edge configuration will penetrate material faster than conventional drills, can drill material too hard for conventional drills, and can be used with materials that are usually abrasive on conventional drills.

    摘要翻译： 所有切削刃钻头，其中切割边缘包括穿过点的切割边缘，在点切割边缘和侧凹槽边缘之间的肩部处，并且沿着凹槽边缘，所有这些都避免了局部磨损区域并且获得更高的表面速度 和更好的完成和孔尺寸控制。 具有全切削刃构造的钻头比常规钻头更快地穿透材料，可以对常规钻头钻探材料太硬，并且可以与通常在常规钻头上通常是磨料的材料一起使用。

    Cutting tool with chip breaker
    29.
    发明授权
    Cutting tool with chip breaker 失效
    切削刀具带断屑器

    公开(公告)号：US4087193A

    公开(公告)日：1978-05-02

    申请号：US719285

    申请日：1976-08-31

    申请人： William L. Mundy

    发明人： William L. Mundy

    IPC分类号： B23B27/14 ,  B23B51/02 ,  B26D1/12

    CPC分类号： B23B51/02 ,  B23B27/141 ,  B23B2251/18 ,  B23B2251/406 ,  B23B2251/48 ,  B23B2260/072 ,  Y10T407/235

    摘要： A cutting tool made of a material that retains its cutting effectiveness at temperatures over 1200.degree. F., and including a chip breaker geometry, for the continuous machining of metal, having a first top generally planar surface and an end surface which join to define the cutting edge of the tool and which join at an included angle such that the tool has a relatively high positive rake angle. A second top generally planar surface extends from the first top surface away from the cutting edge and forms an included angle with the first top surface of between about 125.degree. and 145.degree.. The upper surface of the tool at the other end of the second top surface drops below the second top surface. This allows a chip formed during machining to move from the cutting edge, over the first and second top surfaces, and relatively unobstructed past the edge of the other end of the second top surface. The lengths of the first and second top surfaces are approximately equal and the edge at the other end of the second top surface lies below the cutting edge of the tool. The tool may be formed as a polygonal shaped insert.SUMMARY AND BACKGROUND OF THE INVENTIONThis invention relates to cutting tools with a novel chip breaker design, and specifically tools with the chip breaker formed integrally therewith and made of a material which retains its cutting effectiveness at temperatures above 1200.degree. F. Still more specifically, the chip breaker design of this invention is for use with tools of such material having an effective rake angle defined in accordance with the teachings of U.S. Pat. No. 3,837,240 issued Sept. 24, 1974, entitled "Cutting Tool For The Continuous Machining Of Metals And The Method Of Making Same", of the same inventor, which patent is incorporated herein by reference.Conventional tools of such materials such as carbide have typically had only slight positive, zero, or even negative rake angles, the concept being to use the high compressive strength and high temperature tolerance of the carbide to effectively plow off the metal during the machining process. The result has been to produce a high temperature, ductile, and continuous chip which has been relatively difficult to break. A further result has been a tendency for the chip of such a conventional tool to create cratering by erosion of the top surface of the tool adjacent the cutting edge. As this cratering continues, or becomes deeper, the tool is weakened near the cutting edge and the continuous plowing of the chip into the crater eventually breaks off the cutting edge causing tool failure. These disadvantages are also inherent in some prior art chip breaker designs, for one prior art solution has been to effectively preform such a crater in the tool adjacent the cutting edge so that as the chip is formed it moves through the generally rounded crater and is caused to curl and finally break by either impinging on itself of the workpiece. However, these preformed craters impose too much restraint on the chip at the back side of the crater creating excessive reactive forces acting back through the curved portion of the chip toward the front part of the crater tending to break off the cutting edge of the tool and severely shorten the tool life.In contrast, the tool and chip breaker design of the present invention overcomes these problems by the unique combination of its chip breaker design on high temperature tools such as carbides having relatively high positive rake angles as taught by the referenced patent.In accordance with the teachings of the referenced patent, the effective rake angle is defined as a function of the characteristics of the workpiece to be machined. The effective rake angle is defined substantially in accordance with the formula cos C = 1.sub.i /1.sub.f cos D where C is the effective rake angle of the cutting tool, 1.sub.i /1.sub.f is the ratio of the initial length to final length of a specimen of a metal to be machined when tensile loaded to failure measured parallel to the applied load, and D is the neck down angle of the specimen in the failure area after being tensile loaded to failure. With the application of these teachings, the effective rake angle is always positive, and it has been found that for most ductile metals this angle is in excess of about 25.degree. and usually about 35.degree., and as much as 55.degree..As further taught by the referenced patent, a cutting tool having an effective rake angle so defined will create a minimum amount of distortion or deformation of the parent metal and will work harden the chip during the machining process. Additionally, the chip will be of a relatively low temperature as compared to that produced by the conventional tools heretofore described.The chip breaker design of the present invention makes use of these chip characteristics produced by the teachings of the referenced patent to overcome the problems of the prior art by providing a chip breaker for use with a high temperature tool, such as carbide, having a relatively high positive effective rake angle and which allows the work hardened chip to slide over a first top surface at the high effective rake angle and then over a second top surface extending inwardly from the first. The second top surface is formed at an angle with respect to the first that causes the chip to curl but allows it to move freely past the inner edge of the second surface, the portion of the insert behind the inner edge of the second surface dropping below said second surface. The chip, upon curling and impinging on the workpiece, is preferably caused to break against the inner edge of the second surface, which edge is below the cutting edge of the tool. The unique design substantially reduces cratering and has a "self-maintaining" effect due to the simultaneous wearing of the first and second surfaces as the chip is continuously formed to maintain the chip breaker geometry. It also reduces the reactive forces tending to break off the cutting edge.In one preferred embodiment the tool is a polygonal insert with each side so formed with a cutting edge and chip breaker.Thus, it is a primary object of this invention to provide a chip breaker design for a high temperature tool, such as carbide, for use with relatively high positive effective rake angles, where the work hardened chip is caused to curl and break without creating severe reaction forces through the chip tending to break off the cutting edge and reduce the tool life, and it is a further object of the invention to provide such a design which has a self-maintaining effect to thus prolong the life of the chip breaker geometry. These and other objects of the invention are apparent from the drawing and detailed description to follow.

    摘要翻译： 一种由材料制成的切削工具，其在超过1200°F的温度下保持其切割效率，并且包括用于连续加工金属的断屑槽几何形状，其具有第一顶部大体上平坦的表面和端面，其连接以限定 刀具的切削刃并且以夹角连接，使得刀具具有相对高的正前角。 第二顶部大致平坦的表面从第一顶表面延伸离开切割边缘，并且与第一顶表面形成约125°至145°的夹角。 在第二顶表面的另一端的工具的上表面下降到第二顶表面之下。 这允许在加工期间形成的切屑从切割边缘移动到第一和第二顶部表面上，并且相对不受阻碍地经过第二顶部表面的另一端的边缘。 第一和第二顶表面的长度大致相等，第二顶表面的另一端的边缘位于工具的切割边缘的下方。 工具可以形成为多边形插入件。