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Match Document Document Title
7243745 Cutting elements and rotary drill bits including same  
A cutting element for a rotary drill bit that has a superabrasive member joined to a substrate at a three-dimensional interface is disclosed. The interface of the cutting element preferably...
7216661 Method of forming a wear resistant component  
A method of forming a wear resistant component includes providing a base material, depositing a strengthening layer on the base material, and vapor depositing an amorphous diamond layer on the...
6935618 Valve component with multiple surface layers  
A sliding component, particularly a disk valve plate. The sliding component includes a multi-layer surface structure comprising a strengthening layer harder than the substrate material, and an...
6892836 Cutting element having a substrate, a transition layer and an ultra hard material layer  
A non-uniform interface is formed between a polycrystalline ultra hard material layer and a cemented tungsten carbide substrate, or a polycrystalline ultra hard material layer and a transition...
6869334 Process for producing a hard-material-coated component  
The invention relates to a process for producing a hard-material-coated component, comprising the following steps: application of a layer of hard material to the component in a PVD coating unit;...
6772848 Superabrasive cutters with arcuate table-to-substrate interfaces and drill bits so equipped  
A cutter for drilling subterranean formations including a superabrasive table formed on an end face of a supporting substrate, there being an interface between the table and the end face defined by...
6739417 Superabrasive cutters and drill bits so equipped  
A cutter for a drill bit has a superabrasive member joined to a substrate at a three-dimensional interface. The three-dimensional interface comprises a protrusive pattern of interconnected elements...
6513608 Cutting elements with interface having multiple abutting depressions  
Cutting elements for incorporation in a drill bit are provided having a body and an ultra hard material cutting layer over an end face of the body. A plurality of abutting shallow depressions are...
6510910 Unplanar non-axisymmetric inserts  
Cutting elements for incorporation in a drill bit are provided having a body having an end face interfacing with an ultra hard material cutting layer. A main depression having a nonplanar surface...
6484826 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6460637 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6419034 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6244365 Unplanar non-axisymmetric inserts  
Cutting elements for incorporation in a drill bit are provided having a body having an end face interfacing with an ultra hard material cutting layer. A main depression having a nonplanar surface...
6199645 Engineered enhanced inserts for rock drilling bits  
Enhanced inserts are formed having a cylindrical grip and a protrusion extending from the grip. An ultra hard material layer is bonded on top of the protrusion. The inserts are mounted on a rock...
6193001 Method for forming a non-uniform interface adjacent ultra hard material  
A non-uniform interface is formed between a polycrystalline ultra hard material layer and a cemented tungsten carbide substrate, or a polycrystalline ultra hard material layer and a transition...
6148938 Wear resistant cutter insert structure and method  
A wear resistant cutter insert structure and method include a stud having at least one face. A primary tapered ridge and at least one secondary tapered ridge extending from the primary tapered...
6145607 Preform cutting elements for rotary drag-type drill bits  
A preform cutting element, for a rotary drag-type drill bit, includes a facing table of polycrystalline diamond having a front face, a peripheral surface, and a rear surface bonded to the front...
6135219 Earth-boring bit with super-hard cutting elements  
An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and...
6098730 Earth-boring bit with super-hard cutting elements  
An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and...
6083570 Synthetic diamond coatings with intermediate amorphous metal bonding layers and methods of applying such coatings  
This invention relates to methods of making new and improved diamond, "diamond-like carbon" (a-C) and "diamond-like hydrocarbon" (a-C:H) coatings bonded to substrates by using intermediate bonding...
6082223 Predominantly diamond cutting structures for earth boring  
A diamond cutting element for use on an earth boring drill bit, such as a rotary drag bit. The cutting element is predominately comprised of a diamond cutting structure attached to either a...
6068071 Cutter with polycrystalline diamond layer and conic section profile  
Polycrystalline diamond cutter (PDC) designs which substantially improve the penetration rate of fixed cutter drill bits while simultaneously reducing the wear on the bit during drilling operations...
6051079 Diamond coated cutting tool insert  
A wear resistant, diamond enhanced cutting tool for excavating is disclosed. The cutting tool includes a cutting insert having a diamond coated cutting tip brazed to the cutting insert. The cutting...
6041875 Non-planar interfaces for cutting elements  
This invention is directed to cutting elements having an ultra hard cutting layer such as polycrystalline diamond or polycrystalline cubic boron nitride bonded on a cemented carbide substrate. The...
6025076 Diamond-containing body  
A diamond-containing body is provided which is useful particularly as a tool insert. The body comprises a layer of CVD diamond presenting a working surface defining a cutting edge. The layer of CVD...
6000483 Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped  
A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table between about 0.070 inch and 0.150 inch thickness, mounted to a supporting...
5979579 Polycrystalline diamond cutter with enhanced durability  
A cutting element is provided for use with drill used in the drilling and boring through subterranean formations. This new cutter has improved wear characteristics while maximizing the...
5967249 Superabrasive cutters with structure aligned to loading and method of drilling  
A cutter for use on a rotary-type drag bit for earth boring is provided comprising a substantially rectangular diamond table attached to a substrate. At least one elongated support structure made...
5924501 Predominantly diamond cutting structures for earth boring  
A diamond cutting element for use on an earth boring drill bit, such as a rotary drag bit. The cutting element is predominately comprised of a diamond cutting structure attached to either a...
5881830 Superabrasive drill bit cutting element with buttress-supported planar chamfer  
Superabrasive cutting elements for use in drilling subterranean formations, and drill bits so equipped. The cutting element includes a superabrasive table between about 0.090 inch and 0.120 inch...
5879057 Horizontal remote mining system, and method  
A horizontal remote mining system comprising a water jet cutting head, down hole crusher, jet pump, and guidance system for orchestrating select excavation of a horizontal borehole. The system is...
5871805 Computer controlled vapor deposition processes  
A method for computerized control of vapor deposition processes, including chemical vapor deposition and electron beam physical vapor deposition processes, uses optical imaging sensors and/or laser...
5871060 Attachment geometry for non-planar drill inserts  
A manufacturing method and a drill bit composite insert for performing mechanical actions that require high wear and impact resistance are provided. The composite insert has improved interface...
5837071 Diamond coated cutting tool insert and method of making same  
A wear resistant, diamond enhanced cutting tool for excavating is disclosed. The cutting tool includes a cutting insert having a diamond coated cutting tip brazed to the cutting insert. The cutting...
5794801 Material compositions  
An article includes a plurality of stratum bonded together, a synthetic diamond material applied to a surface of a first stratum by chemical vapor deposition and a protective coating bonded to the...
EP0601840B1 Improvements in or relating to cutting elements for rotary drill bits  
Abstract of EP0601840 A preform cutting element (18), particularly for a drag-type rotary drill bit, comprises a thin cutting table (20) of polycrystalline diamond, a substrate (22) of cemented...
5773140 Supported polycrystalline compacts having improved physical properties  
Supported polycrystalline compacts having improved shear strength, impact, and fracture toughness properties, and methods for making the same under high temperature/high pressure (HT/HP) processing...
5740941 Sheet material with coating  
An article includes a base substrate having an outer surface, a visible marking placed on the outer surface, a coating of transparent synthetic diamond material bonded to the outer surface and over...
5718948 Cemented carbide body for rock drilling mineral cutting and highway engineering  
The invention relates to a coated cemented carbide body for rock drilling having a substrate containing at least one metal carbide and a binder metal and an at least partly covering coating...
5714202 Synthetic diamond overlays for gas turbine engine parts having thermal barrier coatings  
This invention discloses methods of making new and improved multi-layer coatings for gas turbine engine parts that are exposed to elevated temperatures, such as blades and vanes in the high...
5711702 Curve cutter with non-planar interface  
A cutting compact has a superhard abrasive layer bonded to a substrate layer, wherein the configuration of the interface between abrasive and substrate layers is a non-planar, or three dimensional,...
5706906 Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped  
A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table between about 0.070 inch and 0.150 inch thickness, mounted to a supporting...
5688557 Method of depositing synthetic diamond coatings with intermediates bonding layers  
A process is disclosed for making improved diamond coatings bonded to substrates by using intermediate bonding layers engineered to reduce the residual stress in the diamond coatings.
5685769 Tool component  
A tool component comprises an abrasive compact layer bonded to a cemented carbide substrate along an interface. The abrasive compact layer has a working surface on a side opposite to the interface...
5660936 Fine grain diamond tool and method of manufacture  
A multi-surfaced diamond tool having at least two surfaces thereof consisting essentially of fine grained diamonds preferably having an average particle size of about 0.01 μm to about 20 μm and a...
5624068 Diamond tools for rock drilling, metal cutting and wear part applications  
The present invention relates to buttons, inserts and bodies for rock drilling, rock cutting, metal cutting and wear part applications. The buttons, inserts and bodies comprise cemented carbide...
5616372 Method of applying a wear-resistant diamond coating to a substrate  
This invention discloses methods of making new and improved diamond coatings bonded to substrates, in which the coatings are protected by post-deposition treatment to form graphite-based...
5580196 Wear resistant tools  
Wear resistant rotary machining tools including twist drill bits, slot drill bits, thread taps, end mills and reamers are disclosed. The tools comprise a body of cemented tantalum, titanium...
5567526 Cemented tungsten carbide substrates having adherent diamond films coated thereon  
A cemented tungsten carbide substrate is prepared for coating with a layer of diamond film by subjecting the substrate surface to be coated to a process which first removes a small amount of the...
EP0462091B1 Improved tools for percussive and rotary crushing rock drilling provided with a diamond layer  
Abstract of EP0462091 The present invention relates to a rock bit button (1) of cemented carbide for percussive or rotary crushing rock drilling. The button (1) is provided with a layer of diamond...
Matches 1 - 50 out of 81 1 2 >