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公开(公告)号：US06939092B2
公开(公告)日：2005-09-06
申请号：US10869267
申请日：2004-06-16
申请人： William B. Korb , Brian K. Douglas , Kenneth Hall
发明人： William B. Korb , Brian K. Douglas , Kenneth Hall
IPC分类号： B23B20060101 , B23B51/04
CPC分类号： B23B51/0473 , B23B51/0406 , B23B2222/28 , B23B2240/16 , B23B2251/285 , B23B2251/54 , Y10T408/895 , Y10T408/8957
摘要： A sheet metal hole cutter has a cap plate defining a substantially circular peripheral groove and an annular shelf extending radially outwardly from the peripheral groove. An elongated band forming an approximately circular shape with opposite ends of the band contacting each other defines a base edge received within the circular peripheral groove in an abutting relationship with an inner edge of the groove. The band defines an axial depth of about ½ of an inch or less, and an outer diameter within the range of about 9/16 of an inch through about 6 inches. A weld region fixedly secures the base edge of the band to the cap plate. The annular shelf of the cap plate extends radially outwardly from the base edge of the band and defines a radial depth of at least approximately 1/16 of an inch in order to prevent over-feeding of the hole cutter through a work piece. A plurality of teeth are disposed along a cutting edge of the band, and each tooth defines a cutting surface extending between an outer edge and an inner edge of the tooth. Each cutting surface is oriented at an acute angle relative to the plane of the cap plate such that the outer edge of the respective tooth is spaced further away from the cap plate than the inner edge to thereby preferentially cut the work piece with the outer edge and create a substantially burr-free hole in the work piece.
摘要翻译： 钣金孔刀具有限定大致圆形周边槽的盖板和从周向槽径向向外延伸的环形搁架。 形成大致圆形形状的细长带，带的彼此接触的相对端彼此限定出与圆形外周槽接合的基部边缘，该基部边缘与凹槽的内边缘形成邻接关系。 带限定了约1/2英寸或更小的轴向深度，外径在约9/16英寸至约6英寸的范围内。 焊接区域将带的基部边缘固定地固定到盖板上。 盖板的环形搁板从带的基部边缘径向向外延伸，并且限定至少约1/16英寸的径向深度，以防止孔刀通过工件过度供给。 沿着带的切割边缘设置多个齿，并且每个齿限定在牙齿的外边缘和内边缘之间延伸的切割表面。 每个切割表面相对于盖板的平面以锐角定向，使得相应齿的外边缘比内边缘更远离盖板，从而优先用外边缘切割工件， 在工件上产生一个基本无毛刺的孔。
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公开(公告)号：US07658129B2
公开(公告)日：2010-02-09
申请号：US10792415
申请日：2004-03-03
申请人： William B. Korb , Brian K. Douglas
发明人： William B. Korb , Brian K. Douglas
CPC分类号： B21K11/02 , B21D53/64 , B23P15/40 , B26B9/00 , B26D1/0006 , B26D2001/002
摘要： A composite utility knife blade and method of making such a blade involves butt joining a tool steel wire to a front edge of an alloy steel backing strip. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion defines a surface hardness within the range of approximately 60 Rc to approximately 57 Rc.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将工具钢丝对接到合金钢背衬带的前边缘。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由工具钢丝形成的第二金属部分和将第一和第二金属部分 。 然后将复合带材退火，并且退火的带材被拉直以消除其中的任何弯曲。 然后将退火的复合带硬化，使得第一金属部分限定在约38Rc至约52Rc的范围内的表面硬度，并且第二金属部分限定在约60Rc至约57Rc的范围内的表面硬度。
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公开(公告)号：US09126259B2
公开(公告)日：2015-09-08
申请号：US12702151
申请日：2010-02-08
申请人： William B. Korb , Brian K. Douglas
发明人： William B. Korb , Brian K. Douglas
CPC分类号： B21K11/02 , B21D53/64 , B23P15/40 , B26B9/00 , B26D1/0006 , B26D2001/002
摘要： A composite utility knife blade and method of making such a blade involves butt joining a tool steel wire to a front edge of an alloy steel backing strip. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion defines a surface hardness within the range of approximately 60 Rc to approximately 57 Rc.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将工具钢丝对接到合金钢背衬带的前边缘。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由工具钢丝形成的第二金属部分和将第一和第二金属部分 。 然后将复合带材退火，并且退火的带材被拉直以消除其中的任何弯曲。 然后将退火的复合带硬化，使得第一金属部分限定在约38Rc至约52Rc的范围内的表面硬度，并且第二金属部分限定在约60Rc至约57Rc的范围内的表面硬度。
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公开(公告)号：US20100263491A1
公开(公告)日：2010-10-21
申请号：US12702151
申请日：2010-02-08
申请人： William B. Korb , Brian K. Douglas
发明人： William B. Korb , Brian K. Douglas
IPC分类号： B23P15/28
CPC分类号： B21K11/02 , B21D53/64 , B23P15/40 , B26B9/00 , B26D1/0006 , B26D2001/002
摘要： A composite utility knife blade and method of making such a blade involves butt joining a tool steel wire to a front edge of an alloy steel backing strip. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion defines a surface hardness within the range of approximately 60 Rc to approximately 57 Rc.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将工具钢丝对接到合金钢背衬带的前边缘。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由工具钢丝形成的第二金属部分和将第一和第二金属部分 。 然后将复合带材退火，并且退火的带材被拉直以消除其中的任何弯曲。 然后将退火的复合带硬化，使得第一金属部分限定在约38Rc至约52Rc的范围内的表面硬度，并且第二金属部分限定在约60Rc至约57Rc的范围内的表面硬度。
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公开(公告)号：US08291602B2
公开(公告)日：2012-10-23
申请号：US10202703
申请日：2002-07-24
IPC分类号： B26B21/58
CPC分类号： B21K11/02 , B21D53/64 , B23P15/40 , B26B9/00 , B26D1/0006 , B26D2001/002
摘要： A composite utility knife blade and method of making such a blade involves butt joining a tool steel wire to a front edge of an alloy steel backing strip. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the tool steel wire, and a weld region joining the first and second metal portions. The composite strip is annealed and hardened such that the first metal portion defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion defines a surface hardness within the range of approximately 60 Rc to approximately 75 Rc. The hardened strip is then tempered, quenched, surface treated to form a sharpened cutting edge, scored, and separated into a plurality of blades.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将工具钢丝对接到合金钢背衬带的前边缘。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由工具钢丝形成的第二金属部分和将第一和第二金属部分 。 复合带材被退火和硬化，使得第一金属部分限定在约38Rc至约52Rc的范围内的表面硬度，并且第二金属部分限定在约60Rc至约75Rc的范围内的表面硬度。 然后将硬化的钢带回火淬火，进行表面处理以形成锋利的切削刃，刻痕并分离成多个刀片。
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公开(公告)号：US07712222B2
公开(公告)日：2010-05-11
申请号：US10793593
申请日：2004-03-04
CPC分类号： B21K11/02 , B21D53/64 , B26B9/00 , B26D1/0006 , B26D2001/002 , Y10T428/12576 , Y10T428/12965
摘要： A composite utility blade and method of making such a blade involves butt joining a high speed or tool steel wire to a front edge of an alloy steel backing strip. The wire defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge of the blade. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the high speed or tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a first surface hardness and the second metal portion defines a second surface hardness greater than the first surface hardness. The hardened strip is then subjected to tempering and quenching cycles, and facets are formed on the edge of the second metal portion to form a straight, tool steel cutting edge. The composite strip is then scored at axially spaced locations to form a plurality of score lines, and the plurality of score lines define a plurality of blade sections there between. The cutting edge may be coated with AlTiN, TiN, or an inner coating of AlTiN and an outer coating of TiN.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将高速或工具钢丝对接到合金钢背衬条的前边缘。 线限定了基本上对应于叶片的切割刃的横截面形状的预定横截面形状。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由高速或工具钢丝形成的第二金属部分，以及焊接区域， 第二金属部分。 然后将复合带材退火，并且退火的带材被拉直以消除其中的任何弯曲。 然后将退火的复合带硬化，使得第一金属部分限定第一表面硬度，并且第二金属部分限定大于第一表面硬度的第二表面硬度。 然后对硬化的钢带进行回火和淬火循环，并且在第二金属部分的边缘上形成小平面以形成直的工具钢切削刃。 然后在轴向间隔开的位置刻划复合带，以形成多个刻痕线，并且多个刻痕线在其间限定多个叶片部分。 切削刃可以涂覆有AlTiN，TiN或AlTiN的内涂层和TiN的外涂层。
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公开(公告)号：US06701627B2
公开(公告)日：2004-03-09
申请号：US09916018
申请日：2001-07-26
申请人： William B. Korb , Brian K. Douglas
发明人： William B. Korb , Brian K. Douglas
IPC分类号： B26B2158
CPC分类号： B21K11/02 , B21D53/64 , B23P15/40 , B26B9/00 , B26D1/0006 , B26D2001/002
摘要： A composite utility knife blade and method of making such a blade involves butt joining a tool steel wire to a front edge of an alloy steel backing strip. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a surface hardness within the range of approximately 38 Rc to approximately 52 Rc, and the second metal portion defines a surface hardness within the range of approximately 60 Rc to approximately 57 Rc.
摘要翻译： 复合实用刀片和制造这种刀片的方法涉及将工具钢丝对接到合金钢背衬带的前边缘。 导线是电子束焊接到背衬条上以形成限定由合金钢背衬条形成的第一金属部分的复合带，由工具钢丝形成的第二金属部分和将第一和第二金属部分 。 然后将复合带材退火，并且退火的带材被拉直以消除其中的任何弯曲。 然后将退火的复合带硬化，使得第一金属部分限定在约38Rc至约52Rc的范围内的表面硬度，并且第二金属部分限定在约60Rc至约57Rc的范围内的表面硬度。
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公开(公告)号：US09434033B2
公开(公告)日：2016-09-06
申请号：US12687102
申请日：2010-01-13
CPC分类号： B23P15/28 , B21K25/00 , B23B51/0406 , B23B51/0473 , Y10T29/49 , Y10T408/895
摘要： A hole cutter having an extruded plate cap and methods and apparatuses for making such caps and hole cutters. The plate cap has planar opposing external and internal surfaces with an extruded hub extending axially inwardly from the internal surface. An aperture extends axially through the hub from the external surface. At least a portion of the aperture can be threaded for threaded engagement with a driving arbor. The hub is long enough so that the threaded portion contains at least two full threads. A blade body with a cutting edge is attached to the cap to form a hole cutter.
摘要翻译： 具有挤压板盖的孔刀和用于制造这种盖和孔刀的方法和装置。 板盖具有平面相对的外表面和内表面，并且具有从内表面轴向向内延伸的挤出轮毂。 孔从外表面轴向延伸穿过轮毂。 孔的至少一部分可以被螺纹连接以与驱动心轴螺纹接合。 轮毂足够长，使得螺纹部分包含至少两个全螺纹。 具有切割刃的刀片主体附接到盖以形成孔刀。
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公开(公告)号：US09375796B2
公开(公告)日：2016-06-28
申请号：US12776145
申请日：2010-05-07
IPC分类号： B23D61/12
CPC分类号： B23D61/121 , Y10T83/9319 , Y10T83/9454
摘要： A recip saw blade has a blade body and a cutting edge extending along the blade body and defined by a repeating pattern of two consecutive teeth. Each of the two consecutive teeth includes a primary clearance surface defining a relatively steep primary clearance angle, a secondary clearance surface defining a relatively shallow secondary clearance angle, a tip, a rake face located on the opposite side of the tip relative to the primary clearance surface, a gullet defining a depth, a first gullet radius located on an opposite side of the gullet relative to the rake face, and a second gullet radius located between the gullet and the rake face, wherein the depth of the gullet is greater than the second gullet radius.
摘要翻译： 食谱锯片具有刀片体和沿刀片体延伸并由两个连续齿的重复图案限定的切割刃。 两个连续的齿中的每一个包括限定相对较陡的主间隙角的主间隙表面，限定相对较浅的二次间隙角的次间隙表面，尖端，位于尖端相对于主间隙的相对侧上的前刀面 表面，定义深度的齿槽，相对于前刀面位于齿槽相对侧的第一齿槽半径和位于齿槽和前刀面之间的第二齿槽半径，其中，齿槽的深度大于 第二食道半径
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公开(公告)号：US20150016910A1
公开(公告)日：2015-01-15
申请号：US14321883
申请日：2014-07-02
申请人： William B. Korb , Joseph T. Novak
发明人： William B. Korb , Joseph T. Novak
IPC分类号： B23B51/04
CPC分类号： B23B51/0406 , B23B51/042 , B23B2200/328 , Y10T408/895
摘要： A hole cutter has a substantially cylindrical blade body that defines an interior surface and an exterior surface that is located on an opposite side of the blade body relative to the interior surface. A cutting edge is located at one end of the blade body that generates swarf in cutting the work piece. A pattern is formed on the exterior and/or interior surfaces of the blade body. The pattern is configured to direct swarf generated at the cutting edge through the path and away from the cutting edge.
摘要翻译： 孔切割器具有基本上圆柱形的刀片体，其限定内表面和外表面，其相对于内表面位于刀片主体的相对侧上。 切割边缘位于刀片主体的一端，在切割工件时产生切屑。 在叶片体的外表面和/或内表面上形成图案。 该图案被配置为引导在切割边缘处产生的切屑通过路径并远离切割边缘。
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