Impregnating Or Coating An Abrasive Tool Patents (Class 51/295)
  • Publication number: 20130205678
    Abstract: A method for making polycrystalline superhard material comprises providing an electrically conductive substrate defining at least one deposition surface, electrophoretically depositing charged superhard particles or grains on to the deposition surface(s) of the substrate to form a pre-sinter body, and subjecting the pre-sinter body to a temperature and pressure at which the superhard material is thermodynamically stable, sintering and forming polycrystalline superhard material. There is also disclosed a superhard wear element comprising a polycrystalline superhard material produced by such a method.
    Type: Application
    Filed: August 8, 2011
    Publication date: August 15, 2013
    Applicant: ELEMENT SIX ABRASIVES, S.A.
    Inventor: Charles Stefan Montross
  • Publication number: 20130205676
    Abstract: An abrasive article including a substrate made of a wire, abrasive particles affixed to the substrate, the abrasive particles having a first coating layer overlying the abrasive particles, and a second coating layer different than the first coating layer overlying the first coating layer. The abrasive article further including a bonding layer overlying the substrate and abrasive particles.
    Type: Application
    Filed: September 14, 2012
    Publication date: August 15, 2013
    Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.
    Inventors: Yinggang Tian, Arup K. Khaund, John Pearlman
  • Patent number: 8501144
    Abstract: Methods of manufacturing polycrystalline diamond are disclosed. More particularly, a mixture including diamond and fullerenes may be provided. Further, the mixture may be exposed to a high pressure, high temperature sintering process. In addition, a volume of polycrystalline diamond bonded to a substrate may be formed by providing a mixture including diamond and fullerenes and exposing the mixture to a high pressure, high temperature sintering process. A drill bit for drilling a subterranean formation is disclosed. Further, polycrystalline diamond compacts are disclosed including polycrystalline diamond bonded to a substrate, wherein the polycrystalline diamond includes less than about 1% by weight or is substantially free of non-fullerenes, non-diamond carbon. Polycrystalline diamond exhibiting an increased diamond volume fraction due to the presence of fullerenes during manufacture relative to polycrystalline diamond formed without fullerenes is disclosed.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 6, 2013
    Assignee: US Synthetic Corporation
    Inventor: Kenneth E. Bertagnolli
  • Publication number: 20130174493
    Abstract: An outer blade cutting wheel (1) comprising a base and a blade section (11) of metal or alloy-bonded abrasive grains is dressed by clamping the cutting wheel between a pair of circular jigs (2) such that the blade section (11) projects beyond the jigs, immersing the cutting wheel in an electropolishing liquid, positioning counter electrodes (4, 5, 6) relative to the blade section, and effecting electropolishing for thereby removing part of the metal or alloy bond and chips received in chip pockets until abrasive grains are exposed on the blade section surface.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 11, 2013
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Shin-Etsu Chemical Co., Ltd.
  • Publication number: 20130167446
    Abstract: A cutter assembly includes a substrate and at least one island. The substrate includes a surface circumscribed by a peripheral edge, a flank surface extending from the peripheral edge, and at least one pocket with an opening on the surface and spaced apart from the peripheral edge. The at least one pocket extends from the opening towards an interior of the substrate. The at least one island is in the at least one pocket, and the at least one island includes a cutting surface that is exposed by the opening of the at least one pocket.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: DIAMOND INNOVATIONS, INC.
    Inventors: Yuanbo Lin, Bruce Jake Reierson, Joseph Michael Rhodes, John W. Lucek
  • Publication number: 20130164557
    Abstract: The invention relates to a body with a substrate (1), an intermediate layer (2) applied on top thereof and a CVD diamond layer (3) applied to the intermediate layer. In order to propose a body coated with CVD diamond and a production process, in which the body has an increased load-bearing capacity under various mechanical loads, provision is made for the intermediate layer to be predominantly metallic, wherein the metal fraction of the intermediate layer consists predominantly of tungsten and/or chromium, and for the intermediate layer to have a roughness defined by an Rz value of 0.5 ?m-3.0 ?m.
    Type: Application
    Filed: May 2, 2011
    Publication date: June 27, 2013
    Applicant: CemeCon AG
    Inventors: Christian Bareiss, Werner Koelker, Oliver Lemmer
  • Patent number: 8470061
    Abstract: An abrasive article includes a backing including first and second major surfaces, an abrasive layer disposed over the first major surface, and a back coat layer disposed over the second major surface. The back coat layer includes a polymeric material and a fabric.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: June 25, 2013
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Paul S. Goldsmith, John F. Porter, Anthony C. Gaeta
  • Publication number: 20130152480
    Abstract: Polycrystalline ultra-hard constructions are made by subjecting a sintered ultra-hard body, substantially free of a sintering catalyst material, to a further HPHT process. The process is controlled to initially melt and infiltrating a filler material into the sintered ultra-hard body to form a filler region having interstitial regions filled with the filler material. The filler region extends a partial depth into the sintered ultra-hard body and is formed at a temperature below the melting temperature of an infiltrant material. Next, the process is controlled to melt and infiltrate the infiltrant material into the sintered ultra-hard body to form an infiltrant region that extends a partial depth into the sintered ultra-hard body. A portion of the filler region and/or the infiltrant region may be removed to form a thermally stable region.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 20, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: SMITH INTERNATIONAL, INC.
  • Publication number: 20130157548
    Abstract: An improved low pressure low speed concrete polishing apparatus and method of cleaning and polishing a floor is used with a conventional rotary flooring machine. A polishing pad has interchangeable polymer strips that are slideably received within the housing of the pad. The polymer strips have an abrasive material embedded therein which collectively work to polish the floor while cleaning the floor during normal low speed floor cleaning conditions.
    Type: Application
    Filed: January 30, 2012
    Publication date: June 20, 2013
    Inventor: Simon Palushaj
  • Publication number: 20130146368
    Abstract: Cutting elements include an ultrahard material body formed at high pressure and high temperature conditions in the absence of catalyzing material to provide a material microstructure comprising a matrix phase of bonded together ultrahard material particles and interstitial regions disposed throughout the matrix phase providing porosity of less than about 6 volume percent. The body may include a substrate attached thereto, and may include an infiltrant material disposed in a population of the interstitial regions. The body may have regions with different porosities, e.g., with a higher porosity region located adjacent a substrate interface and/or along a central region. The body may include more than one infiltrant, each located in different regions. The infiltrant may be introduced into the body during a separate high pressure/high temperature process. The body may include a region which extends a depth from a working surface that is substantially free of any infiltrant.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 13, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: Smith International, Inc.
  • Publication number: 20130140095
    Abstract: A drill bit matrix is provided that contains a powdered abrasive material and a refractory metal powder in which the refractory metal powder is a coated powder in which each granule of the refractory metal powder is coated by a coating material. A core drill bit is further provided, containing a powdered abrasive material, a refractory metal powder and a steel tube onto which the powdered abrasive material and refractory metal powder are alloyed. The refractory metal powder is a coated powder in which each granule of the refractory metal powder is coated by one or more coating materials. A method is finally provided for manufacturing a core drill bit. First a matrix is formed by mixing together a powdered abrasive material and a coated refractory metal powder. The matrix is placed in a mould and a steel tube is placed on top of the mould to form a drill bit assembly. The drill bit assembly is then heated under atmospheric conditions.
    Type: Application
    Filed: August 6, 2010
    Publication date: June 6, 2013
    Inventor: Robert Kenneth Miller
  • Patent number: 8449635
    Abstract: The disclosure is directed to an abrasive article. The abrasive article includes a backing having a major surface and a make layer. The make layer is disposed over the major surface of the backing. The make layer includes abrasive grains and a photoinitiator that increases the depth of ultraviolet cure of the make layer by at least about 50% compared to bis(2,4,6-trimethyl benzoyl) phenyl phosphine oxide. The disclosure is also directed to a method for forming the abrasive article.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 28, 2013
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: Xiaorong You
  • Patent number: 8444458
    Abstract: An abrasive article, such as a structured abrasive article, can be treated by subjecting it to plasma whereby the outer surface can be eroded exposing at least a portion of the abrasive particles dispersed within a cross-linked binder forming the abrasive composites. Depending on the process conditions for the plasma treatment, it is possible to erode only a small portion or substantially all of the cross-linked binder from the outer surface. Thus, the initial cut-rate of the abrasive article can be controlled since it is possible to precisely control the degree, height, or area of the exposed abrasive particles.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 21, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Scott R. Culler, Moses M. David, William C. Quade, Brian J. Brinkmeier
  • Publication number: 20130121778
    Abstract: A process for producing a tool having a main body which extends in a longitudinal direction and at least one blade for machining a workpiece includes providing a base coating on the tool; grinding the at least one blade in a manner that removes the base coating in the region of the at least one blade; and providing a second, fine coating, to the at least one ground blade.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 16, 2013
    Applicant: KENNAMETAL, INC.
    Inventor: Kennametal, Inc.
  • Patent number: 8435098
    Abstract: An abrasive article includes a backing having first and second major surfaces, an abrasive layer overlying the first major surface, and a backsize layer overlying the second major surface. The backsize layer is formed from a formulation including a cationically polymerizable component, a radically polymerizable component, and at least 5% by weight of a nano-sized filler based on the weight of the formulation.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: May 7, 2013
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: Xiaorong You
  • Publication number: 20130099553
    Abstract: Described herein are several methods and apparatuses for treating a cutter tool adapted to be used in tunnel boring operations. In one form, an initial cutter member blank is formed and heat treated prior to a laser cladding process. An alloy is often applied to the surface of the cutter blank adjacent to the cutting elements by the cladding process whereby the cladding process has insufficient heat transfer from the cladding process to reduce hardness properties of the inserts and/or the cutter blank. In one example a fabric-like material defines the region of the exterior hard surface.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: HERRENKNECHT TUNNELING SYSTEMS
    Inventor: Herrenknecht Tunneling Systems
  • Publication number: 20130092452
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (“HPHT”) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with an alloy infiltrant comprising at least one of a cobalt-based or nickel based alloy infiltrant having a composition at or near a eutectic composition of the alloy infiltrant.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 18, 2013
    Applicant: US SYNTHETIC CORPORATION
    Inventor: US SYNTHETIC CORPORATION
  • Publication number: 20130092453
    Abstract: A hardfaced infiltrated matrix downhole tool and a method for hardfacing such items. The hardfaced infiltrated matrix downhole tool includes a body, an intermediate base coat coupled to at least a portion of the surface of the body, and a hardfacing material coupled to at least a portion of the intermediate base coat. The body is composed of at least a carbide material and an infiltrating binder material. The intermediate base coat bonds to the surface of the body and to the hardfacing material. The method includes obtaining an infiltrated matrix downhole tool, applying and bonding the intermediate base coat to at least a portion of the surface of the infiltrated matrix downhole tool, and applying and bonding the hardfacing material to at least a portion of the intermediate base coat.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 18, 2013
    Inventor: Charles Daniel Johnson
  • Publication number: 20130092451
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (“HPHT”) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with a cobalt-based alloy infiltrant having a composition at or near a eutectic composition of the cobalt-based alloy infiltrant.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Applicant: US SYNTHETIC CORPORATION
    Inventors: Debkumar Mukhopadhyay, Jair J. Gonzalez
  • Patent number: 8420237
    Abstract: An adherent coating for carbide and ceramic substrates employs a thin layer of hafnium nitride (HfN) between the substrate and a subsequent layer or layers. The thin layer may be employed without thermal cracking due to heat during use, such as for the insert of a cutting tool, because the upper layer or layers provide a gradual transition of material properties to a harder, less thermally conductive material on the outermost layer. A particular arrangement of layers on the carbide or ceramic substrate and hafnium nitride layer may be, from innermost to outermost layer, titanium carbide, aluminum oxide, and titanium nitride.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 16, 2013
    Inventors: Wenping Jiang, Mike Kimmel, Ajay P. Malshe, Brett McAfee
  • Publication number: 20130089833
    Abstract: A dental tool includes a work area which is covered with abrasive particles, wherein the abrasive particles are embedded at least in part in a support layer formed galvanically on a surface of the work area, and wherein at least one cover layer which at least partly encloses the abrasive particles is arranged on the support layer, and to a method for producing the dental tool.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 11, 2013
    Applicant: GEBR. BRASSELER GMBH & CO. KG
    Inventor: GEBR. BRASSELER GMBH & CO. KG
  • Patent number: 8409308
    Abstract: A method for manufacturing a polishing pad that has a high level of optical detection accuracy and is prevented from causing slurry leak from between the polishing region and the light-transmitting region includes preparing a cell-dispersed urethane composition by a mechanical foaming method; placing a light-transmitting region at a predetermined position on a face material or a belt conveyor, continuously discharging the cell-dispersed urethane composition onto a part of the face material or the belt conveyor where the light-transmitting region is not placed; placing another face material or belt conveyor on the discharged cell-dispersed urethane composition; curing the cell-dispersed urethane composition to form a polishing region including a polyurethane foam, so that a polishing sheet is prepared; applying a coating composition containing an aliphatic and/or alicyclic polyisocyanate to one side of the polishing sheet and curing the coating composition to form a water-impermeable film; and cutting the poli
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: April 2, 2013
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Akinori Sato, Junji Hirose, Kenji Nakamura, Takeshi Fukuda, Masato Doura
  • Publication number: 20130074418
    Abstract: An abrasive article includes an abrasive particulate material made of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition including a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg:Ca] within a range between about 1:1 and about 10:1, and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 28, 2013
    Inventors: Tracy H. Panzarella, Doruk O. Yener
  • Patent number: 8377158
    Abstract: Provided is an abrasive article comprising (a) a metallic foil having a first and second surfaces and voids therebetween, (b) a plurality of abrasive particles substantially in the voids, and (c) an alloy at least partially between the abrasive particles and the foil in the voids, wherein the alloy comprises a second component and a portion of the metallic foil near the voids. Also provided are methods of making and using such abrasive articles.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Gary M. Palmgren, Jay B. Preston, Brian D. Goers
  • Publication number: 20130032129
    Abstract: The super-abrasive grain fixed type wire saw is equipped with two layers consisting of a brazing material layer (13) and a metal plating layer (16), the aforementioned brazing material layer (13) serving to temporarily fix super-abrasive grains (14), and the aforementioned metal plating layer (16) serving to hold the super-abrasive grains (14). The thickness of the brazing material layer (13) is 10% or less of the average grain diameter of the super-abrasive grains (14). The brazing material layer (13) is formed on the surface of a wire (10) in advance. The super-abrasive grains (14) are dispersed and adhered in a single layer onto the brazing material layer (13). Subsequently, the surface of the brazing material layer (13) is melted and solidified, resulting in a super-abrasive-grains-temporarily-adhered wire (12) such that super-abrasive grains (14) are joined to the adhesion surface of the brazing material layer (13). Thereafter, the super-abrasive-grains-temporarily-adhered wire (12) is metal-plated.
    Type: Application
    Filed: October 29, 2010
    Publication date: February 7, 2013
    Applicant: NAKAMURA CHOKO CO., LTD.,
    Inventors: Yasuhiko Otani, Tsutomu Tomiyoshi, Yoshihiro Hagihara, Kenji Kubo, Hiroaki Inoue, Toshihide Takagi, Hideaki Shimada, Masahito Fukumoto, Kazuhiro Shimono
  • Patent number: 8361176
    Abstract: A surface-modified abrasive grain includes an abrasive grain as a substrate, and a film on the abrasive grain that includes a relatively hydrophilic silane component and a relatively hydrophobic silane component. The film can be a single film layer or multiple film layers, wherein a film layer most proximal to the abrasive grain has a predominately hydrophilic silane component, and a film layer more distal to the abrasive grain includes predominately a relatively hydrophobic silane component. Coated abrasive products and bonded abrasive products include the surface-modified abrasive grains.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: January 29, 2013
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Anuj Seth, Ying Cai
  • Patent number: 8353974
    Abstract: Methods of manufacturing a superabrasive element and/or compact are disclosed. In one embodiment, a superabrasive volume including a tungsten carbide layer may be formed. Polycrystalline diamond elements and/or compacts are disclosed. Rotary drill bits for drilling a subterranean formation and including at least one superabrasive element and/or compact are also disclosed.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: January 15, 2013
    Assignee: US Synthetic Corporation
    Inventors: Craig H. Cooley, Kenneth E. Bertagnolli, Michael A. Vail
  • Publication number: 20130012112
    Abstract: Abrasive articles including a non-woven web of staple fibers that form a single layer that is free of any additional layers of non-woven webs of staple fibers. The abrasive articles contain abrasive particles bound to the non-woven web. The abrasive articles can be compressed abrasive articles that include a non-woven web of staple fibers, including blends of staple fibers having a first portion of fibers having a first linear density and a second portion of fibers having a second linear density.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 10, 2013
    Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.
    Inventors: Shyiguei Hsu, Alejandro Gomez, Godofredo Vela
  • Publication number: 20130011692
    Abstract: A coated article has a substrate and a coating scheme, which has a PVD coating region. The PVD coating region contains aluminum, yttrium, nitrogen and at least one element selected from the group of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten and silicon. The sum of the aluminum and yttrium contents is between about 3 atomic percent and about 55 atomic percent of the sum of aluminum, yttrium and the other elements. The yttrium content is between about 0.5 atomic percent and about 5 atomic percent of the sum of aluminum, yttrium and the other elements. There is also a method of making the coated article that includes steps of providing the substrate and depositing the above coating scheme with the PVD coating region.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Applicant: Kennametal Inc.
    Inventors: Wangyang Ni, Ronald M. Penich, Yixiong Liu
  • Patent number: 8343586
    Abstract: The present invention relates to a conductive polishing pad and a method for making the same. The conductive polishing pad includes a bottom layer, a conductive film and a polishing layer. The bottom layer includes a first high polymer and a fiber base. The first high polymer covers the fiber base, and has a plurality of first holes. The conductive film is disposed on the bottom layer. The polishing layer is disposed on the conductive film, and includes a second high polymer. The second high polymer has a plurality of second holes. Even though the bottom layer and the polishing layer are poor conductors, the conductivity thereof is raised by the conductive film, so that the polishing pad has good conductivity. Further, the polishing pad has a flexible surface, which prevents a surface of a workpiece to be polished from being scratched during polishing.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: January 1, 2013
    Assignee: Bestac Advanced Material Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Yung-Chang Hung, Chun-Ta Wang
  • Publication number: 20120324799
    Abstract: Coated particles comprise a core particle comprising a superhard material and having an average diameter of between 1 ?m and 500 ?m. A coating material is adhered to and covers at least a portion of an outer surface of the core particle, the coating material comprising an amine terminated group. A plurality of nanoparticles selected from the group consisting of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element is adhered to the coating material.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Oleksandr Kuznetsov, Gaurav Agrawal
  • Publication number: 20120325562
    Abstract: Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase and a discontinuous diamond phase dispersed throughout the matrix phase. The concentration of diamond in the working layer is higher than in the transition layer. Earth-boring tools include at least one such cutting element. Methods of making cutting elements and earth-boring tools include mixing diamond crystals with matrix particles to form a mixture. The mixture is formulated in such a manner as cause the diamond crystals to comprise about 50% or more by volume of the solid matter in the mixture. The mixture is sintered to form a working layer of a cutting element that is at least substantially free of polycrystalline diamond material and that includes the diamond crystals dispersed within a continuous matrix phase formed from the matrix particles.
    Type: Application
    Filed: September 10, 2012
    Publication date: December 27, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Danny E. Scott, Nicholas J. Lyons
  • Patent number: 8337574
    Abstract: An abrasive product is disclosed. The abrasive product includes a binder support substrate, a binder, an abrasive material affixed to the support substrate by the binder, and an antiloading composition on the surface of the abrasive product. The antiloading composition is a lauryl sulfate. The lauryl sulfate is the only organic antiloading compound included in the antiloading composition.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: December 25, 2012
    Assignee: Saint-Gobain Abrasives, Inc.
    Inventors: Gwo S. Swei, Damien C. Nevoret, Patrick Yang
  • Publication number: 20120322351
    Abstract: A sheet of sandpaper includes a backing layer having opposed first and second major sides, an adhesive make coat on the second major side, abrasive particles at least partially embedded in the make coat, thereby defining an abrasive surface, and an exposed fibrous non-slip layer on the first major side. Methods of making and using such sandpaper are also provided.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 20, 2012
    Inventor: John G. Petersen
  • Publication number: 20120304544
    Abstract: A cubic boron nitride sintered body is excellent in wear resistance. The cubic boron nitride sintered body has about 30 to about 70% by volume of cubic boron nitride; and as the reminder, a binder phase having at least one selected from an oxide, carbide, nitride and boride of Ti, Al, Zr, Y, Ce, Mg or Ca and mutual solid solutions thereof; and inevitable impurities, wherein the cubic boron nitride sintered body contains ?-type Al2O3, ZrB2, ZrO2 and ZrO, and when an X-ray diffraction intensity of a (110) plane of ?-type Al2O3 is represented by Ia, an X-ray diffraction intensity of a (101) plane of ZrB2 is represented by Izb, and an X-ray diffraction intensity of a (111) plane of ZrO is represented by Izo, (Izb/Ia) which shows a ratio of Izb based on Ia satisfies 0.13?(Izb/Ia)?0.30, and (Izo/Ia) which shows a ratio of Izo based on Ia satisfies 0.05?(Izo/Ia)?0.20.
    Type: Application
    Filed: November 11, 2010
    Publication date: December 6, 2012
    Applicant: Tungaloy Corporation
    Inventor: Sho Yokoshi
  • Patent number: 8316745
    Abstract: Techniques are here disclosed for a solar cell pre-processing method and system for annealing and gettering a solar cell semiconductor wafer having an undesirably high dispersion of transition metals, impurities and other defects. The process forms a surface contaminant layer on the solar cell semiconductor (e.g., silicon) wafer. A surface of the semiconductor wafer receives and holds impurities, as does the surface contaminant layer. The lower-quality semiconductor wafer includes dispersed defects that in an annealing process getter from the semiconductor bulk to form impurity cluster toward the surface contaminant layer. The impurity clusters form within the surface contaminant layer while increasing the purity level in wafer regions from which the dispersed defects gettered. Cooling follows annealing for retaining the impurity clusters and, thereby, maintaining the increased purity level of the semiconductor wafer in regions from which the impurities gettered.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: November 27, 2012
    Assignee: Calisolar Inc.
    Inventors: Fritz G. Kirscht, Kamel Ounadjela, Jean Patrice Rakotoniaina, Dieter Linke
  • Publication number: 20120289135
    Abstract: A foamed rigid bottom sanding block includes a sanding block formed of polyfoam material having a bottom portion with an integrally formed rigid member made of a material to lend weight as well as rigidity to said bottom portion, said rigid member nearly spanning a length and a width of said bottom portion and which encased within said polyfoam material, an upper portion of said sanding block having a handle which protrudes from said bottom portion and is made of said polyfoam material. A method and sanding block formed by the method are included.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Inventors: Terry Ali, Christopher Ali, Frank Ali, Wayne Carl Leblanc
  • Publication number: 20120267172
    Abstract: Grains of superabrasive material may be infiltrated with a molten metal alloy at a relatively low temperature, and the molten metal alloy may be solidified within interstitial spaces between the grains of superabrasive material to form a solid metal alloy having the grains of superabrasive material embedded therein. The solid metal alloy with the grains of superabrasive material embedded therein may be subjected to a high pressure and high temperature process to form a polycrystalline superabrasive material. A polycrystalline superabrasive material also may be formed by depositing material on surfaces of grains of superabrasive material in a chemical vapor infiltration process to form a porous body, which then may be subjected to a high pressure and high temperature process. Polycrystalline compacts and cutting elements including such compacts may be formed using such methods.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Anthony A. DiGiovanni
  • Patent number: 8287611
    Abstract: The disclosure is directed to a radiation curable composition including abrasive grains and a binder composition. The binder composition includes about 10 wt % to about 90 wt % cationically polymerizable compound, not greater than about 40 wt % radically polymerizable compound, and about 5 wt % to about 80 wt % particulate filler based on the weight of the binder composition. The particulate filler includes dispersed submicron particulates.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: October 16, 2012
    Assignee: Saint-Gobain Abrasives, Inc.
    Inventors: Xiaorong You, Anthony C. Gaeta, William C. Rice
  • Publication number: 20120244792
    Abstract: A fixed abrasive pad includes a substrate and a plurality of discrete abrasive blocks attached thereon, wherein the abrasive blocks comprise a plurality of abrasive sub-layers, wherein the abrasive density of the sub-layers increases layer-by-layer from the top sub-layer to the bottom sub-layer according to a predetermined ratio. The predetermined ratio ranges from about 1.099 to about 1.124.
    Type: Application
    Filed: November 1, 2011
    Publication date: September 27, 2012
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventor: LI JIANG
  • Publication number: 20120244790
    Abstract: Superabrasive tools and methods for making and using the same are provided. In one aspect, for example, a CMP pad dresser includes a first monolayer of superabrasive particles disposed on and coupled to one side of a metal support layer and a second monolayer of superabrasive particles disposed on and coupled to the metal support layer on an opposite side from the first monolayer. The superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer.
    Type: Application
    Filed: September 21, 2011
    Publication date: September 27, 2012
    Inventor: Chien-Min Sung
  • Publication number: 20120240475
    Abstract: In a method for producing a base body with hard material particles, an adhesive (23) is first of all applied with a defined film thickness to the entire or parts of the working surface (20?) of the tool to be produced. Next, the hard material particles (22) are applied to the regions of the working surface provided with the adhesive (23) for lasting adhesion. Hard material particles (22) are applied evenly by means of an apparatus and are then transferred to the working surface (20?) of the tool (20) to be produced provided with the adhesive (23), on which they remain adhered before the adhesive (23) has hardened. This method enables rapid coating of the working surface of the tool with a predeterminable uniform number of detached hard material particles per unit of area.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 27, 2012
    Applicant: REISHAUER AG
    Inventors: SHERLINE WUNDER, CHRISTOPH RUDOLF, Benno ZIGERLIG, Friedrich KUSTER
  • Publication number: 20120231707
    Abstract: The present invention provides an abrasive article, e.g. a sheet of sandpaper, comprising a backing layer having opposed first and second major surfaces, an adhesive make coat on the second major surface, abrasive particles at least partially embedded in the make coat, thereby defining an abrasive surface, and an exposed non-slip coating layer on the first major surface, the non-slip coating layer comprising at least a base resin and a tackifying resin.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 13, 2012
    Inventors: Thomas E. Pahl, John G. Petersen, Michael P. Wald
  • Publication number: 20120231712
    Abstract: The invention relates to a method of making a grinding disk, comprising the steps of: providing a cap; providing an abrasive part; placing the cap on the abrasive part to form an assembly; holding the assembly and injecting a molding material into a space between the cap and the abrasive part and into the abrasive part to bond the cap and the abrasive part. A grinding disk made by the method is also disclosed.
    Type: Application
    Filed: December 20, 2010
    Publication date: September 13, 2012
    Applicant: 3M Innovative Properties Company
    Inventors: Yu-Lung Wu, Yang-Wen Lee, Ming-Tien Chang
  • Publication number: 20120231711
    Abstract: A method of making a coated abrasive article includes the steps of: applying a make coat to a first major surface of a backing; applying shaped abrasive particles to the make coat to form a first abrasive layer consisting essentially of shaped abrasive particles; applying diluent particles to the make coat over the shaped abrasive particles to form a final abrasive layer; applying a size coat over the final abrasive layer; curing the make and size coats; and wherein the shaped abrasive particles comprise a vertex opposite a base and a width of the shaped abrasive particle tapers from the base to the vertex.
    Type: Application
    Filed: November 23, 2010
    Publication date: September 13, 2012
    Inventors: Steven J. Keipert, Ernest L. Thuber, Thomas J. Anderson
  • Patent number: 8262757
    Abstract: An abrasive article includes a polymer binder, an infrared radiation absorbing dye, and abrasive grains. In particular embodiments, the abrasive articles have been at least partially cured using infrared radiation. The abrasive articles of the present invention can include, for example, coated abrasives, structured abrasives, and bonded abrasives. Methods for manufacturing abrasive articles include at least partially curing an article that includes a polymer binder precursor, an infrared radiation absorbing dye, and abrasive grains using infrared radiation.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: September 11, 2012
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: Xiaorong You
  • Publication number: 20120222362
    Abstract: A surface-modified polycrystalline diamond and a processing method thereof are provided in the present disclosure. The polycrystalline diamond comprises a polycrystalline diamond body, holes are formed on the polycrystalline diamond body after a catalyst metal is removed, and the holes are embedded with a non-catalyst metal after the catalyst metal is removed therefrom. Thus, thermal damage and stress damage to the polycrystalline diamond during operations at a high temperature are eliminated, improving the thermal conductivity of the surface of the polycrystalline diamond, reducing the temperature of the area around the operating point of the polycrystalline diamond and, therefore, the service life of the polycrystalline diamond is prolonged.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: SHENZHEN HAIMINGRUN INDUSTRIAL COMPANY,LTD.
    Inventors: SHANGJIE LI, LIJUN KONG
  • Publication number: 20120225612
    Abstract: Processing pads for mechanical and/or chemical-mechanical planarization or polishing of substrates in the fabrication of microelectronic devices, methods for making the pads, and methods, apparatus, and systems that utilize and incorporate the processing pads are provided. The processing pads include grooves or other openings in the abrading surface containing a solid or partially solid fill material that can be selectively removed as desired to maintain the fill at an about constant or set distance from the abrading surface of the pad and an about constant depth of the pad openings for multiple processing and conditioning applications over the life of the pad.
    Type: Application
    Filed: May 11, 2012
    Publication date: September 6, 2012
    Inventors: Naga Chandrasekaran, Arun Vishwanathan
  • Patent number: 8246701
    Abstract: Methods of fabricating polycrystalline diamond elements and compacts using sp2-carbon-containing particles are disclosed. In an embodiment, a method of fabricating a polycrystalline diamond element includes mixing a plurality of sp2-carbon-containing particles and a plurality of diamond particles to form a mixture. An amount of the plurality of sp2-carbon-containing particles present in the mixture is effective to increase a thermal stability of the polycrystalline diamond element formed at least partially from the mixture. The method further includes sintering the mixture in the presence of a catalyst material to form the polycrystalline diamond element.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: August 21, 2012
    Assignee: US Synthetic Corporation
    Inventor: Michael A. Vail
  • Publication number: 20120192499
    Abstract: Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 2, 2012
    Inventor: Chien-Min Sung