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8163232 Method for making functionally graded cemented tungsten carbide with engineered hard surface  
A method for manufacturing functionally graded cemented tungsten carbide with hard and wear-resistant surface and tough core is described. The said functionally graded cemented tungsten carbide...
8119062 Method and apparatus for manufacturing a cutting insert  
A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch...
8083831 Lightweight, anti-scratch and fracture resistant material for use in the manufacture of jewelry  
The present invention relates to a lightweight, anti-scratch and fracture resistant material for use in manufacture of jewelry prepared by sintering a powered mixture consisting essentially of 20%...
8075661 Ultra-hard composite material and method for manufacturing the same  
An ultra-hard composite material and a method for manufacturing the same, including mixing a metal carbide powder and a multi-element high-entropy alloy powder to form a mixture, green compacting...
8043555 Cemented tungsten carbide rock bit cone  
An earth-boring bit has a steel body and bearing pin for rotatably supporting a cone. The cone has an exterior surface containing rows of cutting elements. The cone and cutting elements are formed...
8016057 Erosion resistant subterranean drill bits having infiltrated metal matrix bodies  
Subterranean drill bits having good erosion resistance, strength, toughness, and thermal stability are disclosed. The drill bits comprise a bit body carrying at least one cutting element and having...
7951455 Methods for manufacturing ultrahard compacts  
A method for manufacturing an ultrahard compact includes assembling a mass of ultrahard material with a mass of substrate material such that the mass of ultrahard material extends radially outward...
7938878 Fine grained cemented carbide with refined structure  
The present invention relates to a fine grained WC-Co cemented carbide. By adding an extremely small amount of Ti, V, Zr, Ta or Nb alone or in combinations, a grain refined cemented carbide...
RE41647 Method of making a cemented carbide body with increased wear resistance  
The present invention relates to a method of making a cemented carbide body with a bimodal grain size distribution by powder metallurgical methods including wet mixing, without milling, of...
RE41646 Cemented carbide body with increased wear resistance  
As there is disclosed a cemented carbide body comprising WC with an average grain size of <10 μm in a binder phase. In the cemented carbide body the WC grains can be classified in at least two ...
7776256 Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies  
Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods...
7708936 Cemented carbide tool and method of making the same  
A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller...
7699904 Functionally graded cemented tungsten carbide  
The present invention is a method for producing functionally graded materials that contain a hard phase that is embedded in a metal matrix phase. The material have a continuous gradient of a matrix...
7678327 Cemented carbide tools for mining and construction applications and method of making same  
A cemented carbide cutting tool insert/button for mining and construction comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in...
7666349 Method of gel-casting a cemented carbide body slurry and gelled body  
The present invention provides a method of gel-casting WC—Co cemented carbide powder, where the resulting gelled body can be of complex shape and has a high green density, a good homogeneity and s...
7647992 Polycrystalline diamond carbide composites  
Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof,...
7637981 Composite wear-resistant member and method for manufacture thereof  
Provided are a composite wear-resistant member which can be manufactured with a lowered sintering temperature, and thus can prevent the carbonization of a material around super hard particles such...
7560068 Method and apparatus for manufacturing a cutting insert  
A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch...
RE40785 Method of making a submicron cemented carbide with increased toughness  
The present invention relates to a method of making a cemented carbide comprising WC, 6-12 wt. % Co and 0.1-0.7 wt. % Cr, wherein the WC-grains are coated with Cr prior to mixing and no milling...
7514061 Method of making submicron cemented carbide  
The present invention relates to a method of making tungsten carbide powder by dissolving at least one organic or inorganic metal salt or compound of at least one of the groups IV, V, and VI of the...
7488512 Method for preparing solid precursor tray for use in solid precursor evaporation system  
In a solid precursor evaporation system configured for use in a thin film deposition system, such as thermal chemical vapor deposition (TCVD), a method for preparing one or more trays of solid...
7435377 Weldable ultrahard materials and associated methods of manufacture  
A weldable ultrahard insert can include an ultrahard working layer and a weldable metal layer metallically bonded with the working layer. The ultrahard working layer can be any ultrahard material...
7258833 High-energy cascading of abrasive wear components  
In accordance with the present invention, a method for manufacturing tungsten carbide components is provided. The method includes forming a composite material out of tungsten carbide powder and...
7235211 Rotary cone bit with functionally-engineered composite inserts  
A rotary cone bit, having a functionally-engineered surface of this invention, comprises a bit body having at least one leg extending therefrom, and a cone that is rotatably disposed on the leg....
7220480 Cemented carbide and method of making the same  
A cemented carbide including WC, a binder phase based on Co, Ni or Fe, and gamma phase, in which said gamma phase has an average grain size <1 μm. A method of making the cemented carbide is ...
7108831 Monophasic Tungsten Carbide  
The present invention relates to a method of producing tungsten carbide by gas phase direct carburization of a tungsten-oxide containing starting material, wherein the starting material is reacted...
7094821 Method of making tungsten carbide based hard metal tools or components  
Preparation, handling, and spray drying, in an economic and environmentally-friendly way, of slurries for the production of tungsten carbide based hard metal tools or components by the powder...
7074247 Method of making a composite abrasive compact  
There is provided a method of making a composite abrasive compact which comprises an abrasive compact bonded to a substrate. The abrasive compact will generally be a diamond compact and the...
6899845 Method for sintering tungsten powder  
A formed body prepared by compacting tungsten powders is embedded in a powder mixture capable of performing combustion synthesis, a part of the powder mixture is powerfully heated to ignite the...
6896845 Process for preparing WC cemented carbide  
W powders and C powders are mixed at a ratio of 1:1, the raw material mixed powder is compacted to prepare a formed body, the formed body is embedded into a powder mixture capable of performing...
6814926 Metal powder composition for laser sintering  
A powder blend for use in laser sintering and a method for forming tough, strong, wear-resistant, corrosion-resistant infiltrated metal products are provided. The powder blend comprises a steel...
6814927 Fabrication method of nanostructured tungsten carbide bulk material  
A nanostructured tungsten carbide bulk material, sintered from tungsten carbide and metal such as cobalt nano-powders, comprises a tungsten carbide and a metallic binder such as cobalt phases. The...
6793875 Nanostructured carbide cermet powders by high energy ball milling  
A method for the synthesis of method for the manufacture of carbide cermet powders, comprises high energy ball milling a mixture of precursor powders and a carbon source, followed by annealing the...
6790252 Tungsten-carbide articles made by metal injection molding and method  
A process of making an article of a tungsten-carbide-cobalt alloy with or without an additive of one or more of tantalum, cobalt-nickel, nickel-tantalum, tantalum-carbide, titanium-carbide,...
6723387 Multimodal structured hardcoatings made from micro-nanocomposite materials  
A thermal spray method for the fabrication of ceramic/metal and ceramic/ceramic hardcoating for wear applications. The method makes use of feedstock powder, composed of micron-scale aggregates of...
6692690 Cemented carbide body with improved high temperature and thermomechanical properties  
There is now provided a cemented carbide grade for rock excavation purposes with 88-96 weight % WC, preferably 91-95% weight % WC, with a binder phase consisting of only cobalt or cobalt and...
6685880 Multiple grade cemented carbide inserts for metal working and method of making the same  
A cemented carbide insert of a first grade has at least one cutting point consisting of a cemented carbide of a second grade with different composition and/or grain size with an uneven transition...
6676893 Porous cubic boron nitride based material suitable for subsequent production of cutting tools and method for its production  
The presently claimed invention relates to a method of making a PcBN cutting tool insert. The method includes the following steps: mixing raw material powders, (e.g., cBN, hBN, TiC, TiN, Ti(C,N),...
6673307 Method of making cemented carbide  
The present invention relates to a method of making a cemented carbide by mixing powder of WC and possibly other powders forming hard constituents and binder phase and pressing agent, drying,...
6655478 Fracture and wear resistant rock bits  
A fracture and wear resistant rock bit is disclosed, which includes a bit body, and at least one roller cone disposed on the bit body adapted such that at least one row of cutting elements disposed...
6524364 Corrosion resistant cemented carbide  
A corrosion and oxidation resistant cemented carbide contains WC and 6-15 wt. % binder phase whereby the binder phase contains 8-12 wt. % of a corrosion resisting addition with an average WC grain...
6500226 Method and apparatus for fabrication of cobalt alloy composite inserts  
This disclosure features a process of making a two part drill bit insert, namely, a body portion of hard particles such as tungsten carbide particles mixed in an alloy binding the particles. The...
6461401 Composition for binder material particularly for drill bit bodies  
A composite structural metal use, for example, in drill bit bodies is disclosed. The metal includes powdered tungsten carbide, and binder metal consisting of a composition by weight of manganese in...
6428596 Multiplex composite powder used in a core for thermal spraying and welding, its method of manufacture and use  
A multiplex powder composite for use in a cored wire electrode to be deployed in a thermal spray or welding apparatus. The composite comprises micron-sized particles and sub-micron-sized particles,...
6413293 Method of making ultrafine wc-co alloys  
The present invention relates to a method of making ultrafine WC—Co alloys from a well dispersed mixture of fine and non-agglomerated WC and Co powders, wherein the Co powders have a narrow grain s...
6402802 Exoflash consolidation technology to produce fully dense nanostructured materials  
Embodiments include a method for fabricating a nanograined component from a nanograined powder composition. A compact is formed from the nanograined powder composition and sufficient heat is...
6399018 Powdered material rapid production tooling method and objects produced therefrom  
Solid objects are made by means of a novel multi-step forming, debinding, sintering and infiltrating process, using a metal-ceramic composition. In this process, the mixture is held for a period of...
6336951 Method of making submicron cemented carbide cutting tool inserts  
An improved method of making submicron cemented carbide bodies include wet milling powders of WC and Co and grain growth inhibitors to a slurry, drying the slurry to a powder, uniaxial pressing of...
6299658 Cemented carbide, manufacturing method thereof and cemented carbide tool  
In a cemented carbide, at least one compound 3 including a carbide, a nitride or carbo-nitride of at least one component selected from IVa, Va and VIa group elements or a solid solution thereof...
6294129 Method of making a cemented carbide body with increased wear resistance  
The present invention relates to a method of making a cemented carbide body with a bimodal grain size distribution by powder metallurgical methods including wet mixing, without milling, of...
Matches 1 - 50 out of 245 1 2 3 4 5 >