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公开(公告)号：EP0691167A1
公开(公告)日：1996-01-10
申请号：EP95300100.5
申请日：1995-01-09
CPC分类号： E21B10/5735 , B23B27/146 , B23B2222/28 , B23B2226/125 , B23B2226/315 , Y10T407/27
摘要： Disclosed is an abrasive tool insert (10) having an abrasive particle layer (14) having an upper surface, an outer periphery, and a lower surface integrally formed on a substrate (12) which defines an interface therebetween. The abrasive particle layer outer periphery forms a cutting plane. The thickness of the abrasive particle layer at its outer periphery cutting plane decreases radially inwardly. Thus, the interface can have a sawtooth shape cross-sectional profile, at least one slot extending from said abrasive particle layer outer periphery radially inwardly, or other configuration based on the precepts of the present invention. Also, the angle of the outwardly sloping profile can be matched to the anticipated angle of the wear plane which will develop as the PDC wears in use.
摘要翻译： 公开了一种研磨工具插入件（10），其具有磨料颗粒层（14），该磨料颗粒层具有上表面，外周边和下表面，整体形成在限定了它们之间的界面的基板（12）上。 研磨颗粒层外周形成切割平面。 研磨颗粒层在其外周切割平面的厚度径向向内减小。 因此，界面可以具有锯齿形横截面轮廓，至少一个狭槽从所述研磨颗粒层外周向径向向内延伸，或者基于本发明的规则的其它构造。 此外，向外倾斜轮廓的角度可以与随着PDC在使用中磨损而发展的磨损平面的预期角度相匹配。
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2.发明授权
公开(公告)号：EP0918134B1
公开(公告)日：2004-06-16
申请号：EP98309488.9
申请日：1998-11-19
IPC分类号： E21B10/56
CPC分类号： E21B10/5735
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公开(公告)号：EP0909595A3
公开(公告)日：2000-01-05
申请号：EP98308252.0
申请日：1998-10-09
IPC分类号： B21C3/02
摘要： The present invention is addressed to improving a blank for a wire drawing did (60) formed from an annular cemented metal carbide support component (66) having a lengthwise extent from an entrance end (68) to an exit end (78) and extending radially about a central longitudinal axis (75) to define a cylindrical internal bore through the lengthwise extent, and a cylindrical sintered polycrystalline compact component (62) received within the bore of the support component and bonded thereto at an interface surface (63) extending a radial distance from and along the longitudinal axis from a wire drawing entrance end to a wire drawing exit end. The compact component is adapted to receive an aperture extending through its lengthwise extent about the central longitudinal axis and is configured with an entrance zone (1) at the did entrance end which tapers inwardly therefrom to a reduction zone (2) whereat a wire to be drawn through the aperture makes initial contact with the compact component, and thence to a bearing zone (3) and an exit zone (4). The improvement in such wire drawing did blank involves the radial distance from said central longitudinal axis to said interface surface tapering inwardly (74) from the entrance end to a minimum prior to the bearing zone after which said radial distance remains substantially constant to said exit end. The corresponding wire drawing did and the method for producing the inventive wire drawing blank also form additional aspects of the present invention.
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5.发明公开Polycrystalline diamond compact (pdc) cutter with improved cutting capability 有权Bohrmeisel mit PDC-Schneideinsatz mit verbesserterSchneidfähigkeit
公开(公告)号：EP0918135A1
公开(公告)日：1999-05-26
申请号：EP98309503.5
申请日：1998-11-19
IPC分类号： E21B10/56
CPC分类号： E21B10/5673 , Y10T407/26 , Y10T408/81
摘要： The present invention relates to supported polycrystalline diamond compact cutters (PDC cutters) made under high temperature, high pressure (HT/HP) processing conditions, and more particularly to supported PDC cutters having non-planar cutting surfaces. More specifically, the present invention is for an oriented PDC cutter (10) wherein chips and debris (16) are funneled away from the cutting edge (18) by the edges (20) of a raised top surface (14) of the polycrystalline diamond layer (PCD layer). The redirection of the debris is achieved by the creation of high and low regions on the PCD layer, of which there can be a variety of different surface geometries. Thus, an object of the present invention is to provide a PDC cutter with improved performance through channeling debris away from its cutting edge.
摘要翻译： 本发明涉及在高温，高压（HT / HP）加工条件下制成的支撑多晶金刚石紧凑型切割机（PDC切割机），更具体地涉及具有非平面切割表面的支撑PDC切割机。 更具体地说，本发明涉及一种定向PDC切割器（10），其中碎屑和碎屑（16）通过多晶金刚石的凸起顶表面（14）的边缘（20）从切割边缘（18）漏出 层（PCD层）。 通过在PCD层上产生高和低的区域来实现碎屑的重定向，其中可以有各种不同的表面几何形状。 因此，本发明的目的是提供一种通过将碎屑从其切割边缘引导而提高性能的PDC切割器。
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6.发明公开Polycrystalline diamond compact cutter with reduced failure during brazing 有权PDC-Schneideinsatz mit reduziertem Versagen beimLöten
公开(公告)号：EP0918134A1
公开(公告)日：1999-05-26
申请号：EP98309488.9
申请日：1998-11-19
IPC分类号： E21B10/56
CPC分类号： E21B10/5735
摘要： Supported polycrystalline diamond compact (PDC) cutters made under high temperature, high pressure (HT/HP) processing conditions, have non-planar interfaces (12) between the polycrystalline diamond (PCD) layer (10) and the cemented carbide support layer(14). The object of the present invention is to provide a PDC cutter with improved resistance to cracking during installation.
The present invention is valuable as an improved way to manufacture PDC cutters with unique properties. The WC-PCD interface geometry of the present invention provides a better match between the WC substrate and the PCD layer. The primary advantage of this interface geometry is enhanced performance and reduced installation and/ or brazing breakage due to improved residual stress at the WC-PCD interface.摘要翻译： 在高温高压（HT / HP）加工条件下制成的支撑多晶金刚石（PDC）刀具在多晶金刚石（PCD）层（10）和硬质合金支撑层（14）之间具有非平面界面 ）。 本发明的目的是提供一种在安装期间具有改进的抗开裂性能的PDC切割机。 本发明作为制造具有独特性质的PDC切割机的改进方法是有价值的。 本发明的WC-PCD界面几何形状提供了WC衬底和PCD层之间更好的匹配。 该接口几何的主要优点是增强了性能，并减少了安装和/或钎焊断裂，这是由于WC-PCD界面处的残余应力得到改善。
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7.发明公开
公开(公告)号：EP0909595A2
公开(公告)日：1999-04-21
申请号：EP98308252.0
申请日：1998-10-09
IPC分类号： B21C3/02
摘要： The present invention is addressed to improving a blank for a wire drawing did (60) formed from an annular cemented metal carbide support component (66) having a lengthwise extent from an entrance end (68) to an exit end (78) and extending radially about a central longitudinal axis (75) to define a cylindrical internal bore through the lengthwise extent, and a cylindrical sintered polycrystalline compact component (62) received within the bore of the support component and bonded thereto at an interface surface (63) extending a radial distance from and along the longitudinal axis from a wire drawing entrance end to a wire drawing exit end. The compact component is adapted to receive an aperture extending through its lengthwise extent about the central longitudinal axis and is configured with an entrance zone (1) at the did entrance end which tapers inwardly therefrom to a reduction zone (2) whereat a wire to be drawn through the aperture makes initial contact with the compact component, and thence to a bearing zone (3) and an exit zone (4). The improvement in such wire drawing did blank involves the radial distance from said central longitudinal axis to said interface surface tapering inwardly (74) from the entrance end to a minimum prior to the bearing zone after which said radial distance remains substantially constant to said exit end. The corresponding wire drawing did and the method for producing the inventive wire drawing blank also form additional aspects of the present invention.
摘要翻译： 本发明涉及改进由从入口端（68）到出口端（78）的纵向延伸的环形胶合金属碳化物支撑部件（66）形成的拉丝（60）的坯料，并且径向延伸 围绕中心纵向轴线（75）围绕长度方向限定圆柱形内孔;以及圆柱形烧结多晶压块部件（62），其容纳在所述支撑部件的孔内并在其上延伸径向的界面表面 距离纵向轴线的距离从拉丝入口端到拉丝出口端。 紧凑部件适于接收围绕中心纵向轴线延伸通过其纵向范围的孔，并且在入口端处构造有入口区域（1），该入口区域从其中向内逐渐变细到还原区域（2），在该区域 通过孔拉出使得初始接触紧凑的部件，然后到轴承区域（3）和出口区域（4）。 这种拉丝的改进是空白的，涉及从所述中心纵向轴线到所述接口表面的径向距离，所述接口表面在所述轴承区域之前从进口端向内（74）向内逐渐变细到最小值，之后所述径向距离保持基本上恒定于所述出口端 。 相应的拉丝线和制造本发明的拉丝坯料的方法也形成了本发明的另外的方面。
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公开(公告)号：EP0691167B1
公开(公告)日：2001-04-04
申请号：EP95300100.5
申请日：1995-01-09
CPC分类号： E21B10/5735 , B23B27/146 , B23B2222/28 , B23B2226/125 , B23B2226/315 , Y10T407/27
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公开(公告)号：EP0852283A3
公开(公告)日：1999-09-22
申请号：EP97310503.4
申请日：1997-12-23
发明人： Flood, Gary Martin , Johnson, David Mark , Knemeyer, Friedel Siegfried , Williams, Bradley Earl
IPC分类号： E21B10/00
CPC分类号： E21B10/5673 , E21B10/5735
摘要： This invention relates to a novel domed polycrystalline diamond cutting element wherein a hemispherical diamond layer is bonded to a tungsten carbide substrate, commonly referred to as a tungsten carbide stud. Broadly, a pattern of ridges or bumps is integrally formed in the abrasive layer which ridges are designed to cause high localized stresses in the rock, thus starting a crack. By initiating cracks in localized areas, the crushing action could be performed with less force.
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公开(公告)号：EP0916804A1
公开(公告)日：1999-05-19
申请号：EP97309188.7
申请日：1997-11-14
发明人： Flood, Gary Martin , Johnson, David Mark , Knemeyer, Friedel Siegfried , Williams, Bradley Earl
IPC分类号： E21B10/56
CPC分类号： E21B10/567
摘要： The present invention relates to a novel domed polycrystalline diamond cutting element (10) wherein a hemispherical diamond layer (14) is bonded to a tungsten carbide substrate (16), commonly referred to as a tungsten carbide stud. Broadly, the inventive cutting element includes a metal carbide stud having a proximal end adapted to be placed into a drill bit (12) and a distal end portion. A layer of cutting polycrystalline abrasive material disposed over said distal end portion such that an annulus (20) of metal carbide adjacent and above said drill bit is not covered by said abrasive material layer. The geometry of the diamond cutting element provides control of interfacial stresses and reduces fabrication costs. The diamond cutting element may contain a pattern of ridges or bumps integrally formed in the abrasive layer which ridges are designed to cause high localized stresses in the rock, thus starting a crack. By initiating cracks in localized areas, the crushing action could be performed with less force.
摘要翻译： 本发明涉及一种新颖的圆顶多晶金刚石切割元件（10），其中半球状金刚石层（14）被结合到通常称为碳化钨螺柱的碳化钨基底（16）上。 广义地说，本发明的切割元件包括金属硬质合金柱，其具有适于放置在钻头（12）和远端部分中的近端。 设置在所述远端部分上方的切割多晶磨料层，使得邻近和在所述钻头附近的金属碳化物的环（20）不被所述磨料层覆盖。 金刚石切割元件的几何形状提供对界面应力的控制并降低制造成本。 金刚石切割元件可以包含在研磨层中一体形成的脊或凸块的图案，其中脊被设计成在岩石中引起高的局部应力，从而开始裂纹。 通过在局部区域中引发裂纹，可以以较小的力进行破碎作用。
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