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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：US5410935A
公开(公告)日：1995-05-02
申请号：US144349
申请日：1993-11-01
申请人： James R. Holston , William B. Korb
发明人： James R. Holston , William B. Korb
CPC分类号： B23D61/121 , Y10T83/9319 , Y10T83/9358
摘要： An improved saw blade includes groups of saw teeth disposed along the cutting edge of the blade. Each group of teeth includes, in relation to the cutting direction of the blade, an unset leading tooth followed by two pairs of trailing teeth alternately set in opposite lateral directions outwardly of the centerline of the blade. The first pair of trailing teeth are generally of the same height as the leading tooth and the second pair of trailing teeth are shorter and have a substantially wider set than the first pair. The pair of trailing teeth that are shorter and wider set are disposed in consecutively and interposed relation between the first pair of trailing teeth. The set distance of the first pair of trailing teeth is approximately 50% of the set distance of the second pair of trailing teeth.
摘要翻译： 改进的锯片包括沿叶片的切割边缘设置的锯齿组。 每个组齿相对于叶片的切割方向包括一个未定位的前齿，随后是两对后齿，其在叶片的中心线的外侧交替地设置在相对的横向方向上。 第一对后齿通常具有与引导齿相同的高度，并且第二对后齿较短并且具有比第一对大得多的设定。 一对较短和较宽的后齿配置在第一对后齿之间的连续和中间关系中。 第一对后齿的设定距离约为第二对后齿的设定距离的50％。
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公开(公告)号：USD701544S1
公开(公告)日：2014-03-25
申请号：US29459501
申请日：2013-07-01
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公开(公告)号：US08573907B2
公开(公告)日：2013-11-05
申请号：US12687073
申请日：2010-01-13
CPC分类号： B23B51/0406 , Y10T408/895 , Y10T408/8953 , Y10T408/8957
摘要： A hole cutter for cutting a work piece, such as a wood and/or metal work piece, has a substantially cylindrical blade body defining a wall thickness within the range of about 0.032 inch to about 0.038 inch, and a cutting edge formed on one end of the blade body including a plurality of teeth defining an average tooth pitch within the range of about 3.5 TPI to about 5.5 TPI for cutting the work piece and forming chips therefrom. The substantially cylindrical blade body and cutting edge define an average tooth pitch to blade body thickness ratio of at least about 110.
摘要翻译： 用于切割诸如木材和/或金属工件的工件的孔刀具有基本上圆柱形的刀片体，其限定在约0.032英寸至约0.038英寸的范围内的壁厚，以及形成在一端的切削刃 所述刀片主体包括多个齿，其限定在约3.5TPI至约5.5TPI的范围内的平均齿距，用于切割所述工件并从其形成碎屑。 基本上圆柱形的刀片主体和切削刃限定了至少约110的平均齿距至刀片体厚度比。
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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：US20120000338A1
公开(公告)日：2012-01-05
申请号：US12827658
申请日：2010-06-30
CPC分类号： B23D61/121 , B23B51/0406 , B23B2251/14 , B23B2251/28 , B27B33/02 , Y10T83/935 , Y10T83/9358 , 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 suitable for abusive cutting applications. The blade defines a relatively coarse tooth pitch. The two consecutive teeth, which may be bi-metal, include a high tooth and a relatively low tooth in comparison to the high tooth. Each high tooth and low tooth include a primary clearance surface defining a relatively shallow primary clearance angle that is about 28° or less, and a secondary clearance surface defining a relatively steep secondary clearance angle in comparison to the primary clearance angle. The primary clearance angle of the high tooth is steeper than the primary clearance angle of the low tooth, such as between about 23° and 28°, and the secondary clearance angle of the high tooth is shallower than the secondary clearance angle of the low tooth.
摘要翻译： 配方锯片具有刀片主体和沿刀片主体延伸的切割刃，并由适合于滥用切割应用的两个连续齿的重复图案限定。 叶片限定了相对较粗的齿距。 与高齿相比，可以是双金属的两个连续的齿包括高齿和相对较低的齿。 每个高齿和低齿包括限定相对较浅的初级间隙角约为28°或更小的初级间隙表面，以及与主间隙角相比限定相对较高的次级间隙角的次级间隙表面。 高齿的主要间隙角比低齿的主要间隙角更为陡峭，例如在23°至28°之间，高齿的二次间隙角比低齿的二次间隙角浅 。
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公开(公告)号：US20110170970A1
公开(公告)日：2011-07-14
申请号：US12687073
申请日：2010-01-13
CPC分类号： B23B51/0406 , Y10T408/895 , Y10T408/8953 , Y10T408/8957
摘要： A hole cutter for cutting a work piece, such as a wood and/or metal work piece, has a substantially cylindrical blade body defining a wall thickness within the range of about 0.032 inch to about 0.038 inch, and a cutting edge formed on one end of the blade body including a plurality of teeth defining an average tooth pitch within the range of about 3.5 TPI to about 5.5 TPI for cutting the work piece and forming chips therefrom. The substantially cylindrical blade body and cutting edge define an average tooth pitch to blade body thickness ratio of at least about 110.
摘要翻译： 用于切割诸如木材和/或金属工件的工件的孔刀具有基本上圆柱形的刀片体，其限定在约0.032英寸至约0.038英寸的范围内的壁厚，以及形成在一端的切削刃 所述刀片主体包括多个齿，其限定在约3.5TPI至约5.5TPI的范围内的平均齿距，用于切割所述工件并从其形成碎屑。 基本上圆柱形的刀片主体和切削刃限定了至少约110的平均齿距至刀片体厚度比。
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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：USD511288S1
公开(公告)日：2005-11-08
申请号：US29193524
申请日：2003-11-10
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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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