Class / Patent application number | Description | Number of patent applications / Date published |
451548000 | Rotary disk | 72 |
20080200106 | Composite abrasive bodies - Composite abrasive bodies, which include abrasive product supports, abrasive particles and cured adhesives bonding the abrasive product supports and the abrasive products, are provided. The cured adhesives may be two-component polyurethane or (meth)acrylate adhesives. In addition, methods for preparing the composite abrasive bodies are also provided. | 08-21-2008 |
20080207102 | GRINDING MEMBER FOR BUTTONS ON ROCK DRILL BIT - The present invention provides a grinding member or connection to a drive connection member to form a grinding cup for grinding the hard metal inserts or working tips of drill bits (percussive or rotary), tunnel boring machine cutters (TBM) and raised bore machine cutters (RBM) to restore them to substantially their original profile, said grinding member having: a. a grinding section having top and bottom surfaces, a centrally disposed convex recess formed in the bottom surface of said grinding section having the desired profile to be ground; b. a support section adjacent the top surface of said grinding section; c. means to connect the grinding member to the drive connection member wherein the grinding member can be disconnected from the drive connection member when it becomes worn. | 08-28-2008 |
20080254726 | Abrasive Body - It is disclosed an abrasive body having a work surface ( | 10-16-2008 |
20080287049 | Cutting Disc - The invention describes a cutting disc ( | 11-20-2008 |
20080299884 | Grinding Wheel - In a grinding wheel in which abrasive tips for rough grinding and abrasive tips for finish grinding are alternately bonded to a periphery of a disk type base rotating about a rotation axis, each abrasive tip includes the abrasive layer for ed by bonding abrasive grains and a lower layer overlaid and integrally for led with the abrasive layer. The abrasive tip is attached to the periphery of the base at the lower layer. A Young's modulus of the lower layer of the abrasive tip for finish grinding relative to a load acting on the grinding surface of the abrasive tip in an inward direction of the grinding wheel is less than that of the abrasive tip for rough grinding. Thereby, the surface of a workpiece can be both rough-ground and finish-ground with superhigh-precision surface roughness with using one grinding wheel | 12-04-2008 |
20080305730 | Grinding Tool for Natural Stone Floors, Artificial Stone Floors and Industrial Soils - A grinding tool for natural stone floors, artificial stone floors and industrial floors allows a greatest possible adaptation to the unevennesses of worn natural and artificial stone floors to be restored by using diamond tools that are flexibly attached. The diamond tools are fixed on a mat so that each individual diamond tool can adapt individually to the grooves and unevennesses of an animated natural stone and stone floor. The grinding pattern of a surface machined with said grinding tool corresponds to a newly produced natural stone or artificial stone floor. | 12-11-2008 |
20090093203 | Flail sanding tool - A flail sanding tool suitable for use with a driver such as a portable drill or bench drill, the flail sanding tool assembly being suitable for work operations such as grinding, polishing, sanding, finishing and the like. The flail sanding tool provides a central shaft with a disk fixed at each end and a drive spindle at one end. The flail sanding tool provides a plurality of vertical tendons at the perimeter to capture and present abrasive/polishing elements to a work piece, such vertical tendons being permanently attached to the disk at one end but releasable from suitably shaped slots in the disk at the other end, for the purpose of loading and unloading the abrasive/polishing elements. Each vertical tendon is shaped in a way to provide an outward bias to ensure positive location when engaged in a retaining slot. | 04-09-2009 |
20090093204 | Sanding disk tool - A tool device suitable for use with a driver, the tool assembly being suitable for work operations such as grinding, polishing, sanding, finishing and the like, the tool device providing a disk shape of rigid or pliable material and a central driving spindle connectable to the driver, the disk being provided with a plurality of radial grooves and tendons therein to capture and present abrasive/polishing elements to a work piece, such radial tendons being permanently attached at one end but releasable from the other end for the purpose of loading and unloading the abrasive/polishing elements. The abrasive/polishing elements are prepared in such a way so as when presented to the work-piece a cushioning/cooling effect is achieved via the generous airflow through and around the elements. | 04-09-2009 |
20090170416 | Methods and Apparatus for Forming a Slurry Polishing Pad - Methods and apparatus for forming a semi-spherical polishing pad for polishing semiconductor surfaces, provide for: placing a polishing pad pre-form on a dome-shaped forming surface, the polishing pad pre-form including a circular body having a center and an outer peripheral edge, and a plurality of slots extending from the outer peripheral edge towards the center; disposing a bladder opposite to the dome-shaped forming surface and the polishing pad pre-form; inflating the bladder with a fluid such that the dome-shaped forming surface of the bonnet form presses against the polishing pad pre-form from one side and the bladder presses against the polishing pad pre-form from an opposite side; and maintaining the pressing step for a predetermined period of time to achieve the semi-spherical polishing pad. | 07-02-2009 |
20090186567 | Abrasive Tool With Mosaic Grinding Face - An abrasive tool includes a back plate with a first side and a second side, a plurality of segment mounts disposed in spaced relation along a majority of said first side, a plurality of abrasive segments engaged by the segment mounts, the second side being configured for attachment to a grinding machine. A method of manufacture of an abrasive tool includes providing a backing plate configured to be mounted onto a grinding machine, providing abrasive segments, and mounting the segments onto a majority of the surface of the backing plate. | 07-23-2009 |
20090209186 | GRINDING DISC FOR AN ECCENTRIC GRINDER - The invention relates to a grinding disk for an eccentric grinding machine. In order to operate the grinding disk ( | 08-20-2009 |
20090280734 | Coated Abrasive Disk Comprising A Loop Fabric Layer and Preparation Thereof - A coated abrasive disk including (1) a loop fabric layer having a plurality of projected filament loops on one side thereof, (2) a carbon fiber textile layer or a glass fiber paper layer in a pre-dried state after impregnation-treatment with an adhesive resin, and (3) a coated abrasive material, which are sequentially stacked and tightly combined together, has an improved elasticity and high cutting performance characteristics. | 11-12-2009 |
20090286457 | CUTTING WHEEL FOR POWER TOOLS - A cut-off wheel for machine tools, in particular for handheld power grinders, has a blade body ( | 11-19-2009 |
20090311955 | Grooved CMP pad - CMP pads having novel groove configurations are described. For example, described herein are CMP pads comprising primary grooves, secondary grooves, a groove pattern center, and an optional terminal groove. The CMP pads may be made from polyurethane or poly (urethane-urea), and the grooves produced therein may be made by a method from the group consisting of molding, laser writing, water jet cutting, 3-D printing, thermoforming, vacuum forming, micro-contact printing, hot stamping, and mixtures thereof. | 12-17-2009 |
20100022174 | Grinding tool and method for fabricating the same - The present invention relates to a grinding tool and a method for fabricating the same. The method comprises: (A) providing a grinding plate having a working surface and a non-working surface, a mold having an adjustment surface, and a backplane; (B) getting the working surface of the grinding plate to fit precisely and be retained on the adjustment surface of the mold by a binder; (C) forming an adhesive layer on the non-working surface of the grinding plate; (D) disposing the backplane on a surface of the adhesive layer to retain the backplane over the non-working surface of the grinding plate by the adhesive layer; and (E) removing the binder to separate the mold from the grinding plate. Accordingly, the present invention can significantly improve the precision and lifetime of products, reduce the cost of production, and enhance the machining efficiency. | 01-28-2010 |
20100035530 | ABRASIVE TOOLS HAVING A CONTINUOUS METAL PHASE FOR BONDING AN ABRASIVE COMPONENT TO A CARRIER - An abrasive article includes a carrier element, an abrasive component, and a bonding region between the abrasive component and the carrier element. The abrasive component includes abrasive particles bound in a metal matrix. The abrasive component further includes a network of interconnected pores substantially filled with an infiltrant. The infiltrant has an infiltrant composition containing at least one metal element. The bonding region includes a bonding metal having a bonding metal composition containing at least one metal element. The bonding region is a region distinct from the carrier element and is a separate phase from the carrier element. An elemental weight percent difference is the absolute value of the difference in weight content of each element contained in the bonding metal composition relative to the infiltrant composition. The elemental weight percent difference between the bonding metal composition and the infiltrant composition does not exceed 20 weight percent. | 02-11-2010 |
20100048112 | DIAMOND TOOL AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a diamond tool for cutting a workpiece and a method of manufacturing the same. The diamond tool includes a shank and a segment coupled to the shank. The segment includes a tape having a plurality of inserting sections formed on a surface of the tape, and diamond particles inserted into the inserting sections and bonded to the tape by pressure sintering. The inserting sections are formed in the tape corresponding to desired arrangement locations of the diamond particles. The diamond particles can be arranged in various patterns in the segment, thereby achieving simplification of the process, which allows process automation and reduces manufacturing costs. | 02-25-2010 |
20100056032 | Method of manufacturing revolving whetstone and revolving whetstone manufactured by the same - In a method of manufacturing a revolving whetstone comprising a central portion in which a whetstone center hole into which a whetstone driving shaft of a grinder is inserted is arranged and a disk-shaped whetstone body that has an effective whetstone circular portion arranged in the circumferential outside of the central portion as one body, the wall thickness of the central portion is formed thinner than the wall thickness of the effective whetstone circular portion, and a whetstone material for the thinned wall thickness of the central portion is put on the wall thickness surface of the effective whetstone circular portion, and the wall thickness of the effective whetstone circular portion is formed thicker than the wall thickness of the central portion. | 03-04-2010 |
20100075582 | POLISHING PAD ASSEMBLY WITH GLASS OR CRYSTALLINE WINDOW - Methods and apparatus for providing a chemical mechanical polishing pad. The pad includes a polishing layer having a top surface and a bottom surface. The pad includes an aperture having a first opening in the top surface and a second opening in the bottom surface. The top surface is a polishing surface. The pad includes a window that includes a first portion made of soft plastic and a crystalline or glass like second portion. The window is transparent to white light. The window is situated in the aperture so that the first portion plugs the aperture and the second portion is on a bottom side of the first portion, wherein the first portion acts a slurry-tight barrier. | 03-25-2010 |
20100075583 | Sharpening apparatus for plane iron crowning - A sharpening apparatus having a slightly convexly or concavely curved abrasive surface, for use in sharpening woodworking tools or in other fields requiring such processing of precision parts or tools. The invention may further employ either cylindrical or conic abrasive surfaces. Cylindrical abrasive surfaces are desirable when a curvature of a fixed radius is desired, or where accuracy of the curvature radius is required. Conic or semi-conic surfaces may be used to enable a user, by means of short sharpening strokes, to achieve an approximate desired curvature among a range of possible curvatures provided along the length of the abrasive surface as the curvature radius progressively declines. In this way, one abrasive surface may be used to achieve a variety of curvatures. | 03-25-2010 |
20100087128 | POLISHING PAD, AND METHOD FOR MANUFACTURING POLISHING PAD - It is an object of the present invention to provide a polishing pad that is resistant to scratching and also has excellent flattening performance. One aspect of the present invention is a polishing pad, comprising a fiber-entangled body formed from fiber bundles made up of ultrafine fibers in which the average cross sectional area is between 0.01 and 30 μm | 04-08-2010 |
20100105303 | Polishing Pad - The present invention provides a polishing pad, and more particularly, a polishing pad with two kinds of groove patterns. The polishing pad includes a polishing surface, on which is formed with at least a first groove and at least a second groove, wherein the characteristic of the polishing pad is in that: the first groove is connected to the second groove, and the width of first groove is larger than that of the second groove and the depth of first groove is larger than that of the second groove. Therefore when the polishing step is performed using the polishing pad, smaller scraps produced after polishing or smaller polishing particles in the slurry or more turbid slurry can flow out of the polishing pad via the second groove, and larger scraps or particles can flow out of the polishing pad via the first groove. Thus the polishing particles or deposits will not easily remain on the polishing pad or further cause scratching and damaging of the surface of polished work piece. | 04-29-2010 |
20100159813 | Abrasive Disc Construction - An improved abrasive disc for use with an angle grinder is disclosed. The grinder is of the type having a threaded spindle. The disc is of the type having: a central portion defining a threaded bore for receiving said spindle; and abrasive material surrounding the central portion. The improvement comprises: a hub defining the threaded bore; an annular element providing the abrasive material, the annular element having a central primary aperture aligned with the threaded bore in the hub to provide access to the bore by said spindle in use; and elements mechanically securing the hub to the annular element, for co-rotation. Apparatus and methods for producing discs are also disclosed. | 06-24-2010 |
20100167634 | GRINDING WHEEL - A grinding wheel having a grindstone portion formed on a core includes slippery fluoroplastic coating films that prevent attachment of foreign matter, the coating films being provided on the portions of the core, with which portions the foreign matter can be brought into contact. | 07-01-2010 |
20100190424 | Reinforced Bonded Abrasive Tools - Bonded abrasive tools, e.g., grinding wheels, can be reinforced using, for instance, one or more fibreglass web(s) having a surface of glass per unit of at least 0.2. Alternatively or in addition, the fibreglass web has a thickness of 2 mm or less. The web can be designed to provide improved adhesion between the fibreglass reinforcement and the mixture employed to form the bonded abrasive tool. In some examples, the middle reinforcement at the neutral zone of the wheel can be eliminated or minimized. | 07-29-2010 |
20100261420 | SEGMENTED GRINDING WHEEL AND MANUFACTURING METHOD THEREFOR - A plurality of segmented chips are reinforced by applying an adhesive to the circumferentially opposite end portions thereof, and the adjoining segmented chips adjoining in the circumferential direction are adhered to the circumferential surface of a disc-like core with the adhesives at the circumferentially opposite end portions being not jointed with each other. Thus, the segmented chips can be prevented from being loaded with an unnatural force even when the disc-like core with the segmented chips adhered thereto expands and contracts radially due to thermal expansion and thermal contract. Thereby, expansion and contraction of the disc-like core do not impose a compression stress or the like on adhesives situated between adjoining segmented chips. | 10-14-2010 |
20100267319 | SYSTEM FOR CONNECTING A DISC TO A DISC HOLDER, AS WELL AS A DISC FOR SUCH SYSTEM - A system for connecting a disc to a disc holder, e.g. for grinding or polishing purposes, has a disc with an operating surface, an opposite connection surface and a protrusion which is mounted to the connection surface. The disc holder has a supporting surface for supporting the connection surface of the disc and a socket in the supporting surface of the disc holder for receiving the protrusion. The connection surface of the disc and the supporting surface of the disc holder are provided with a fixation element distributed over the surfaces outside the protrusion and the socket respectively. | 10-21-2010 |
20100317267 | GRINDING WHEEL WITH SLOPING GROOVE AND PROCESS FOR FABRICATING THE SAME - In a manufacturing method for a grinding wheel in which a plurality of wheel chips each composed of an abrasive grain layer containing superabrasive grains and a foundation layer are adhered to a core attached to a wheel spindle carried by a wheel head of a grinding machine to be drivingly rotatable about a rotational axis and in which a grinding surface formed on the abrasive grain layers grinds a workpiece, drivingly rotatably supported by a workpiece support device of the grinding machine, in contact at a grinding point, the method forms green wheel chips each having opposite ends in a wheel circumferential direction inclined relative to the wheel circumferential direction, bakes the green wheel chips to form baked wheel chips, and adheres the plurality of baked wheel chips to the core so that an oblique groove is formed between adjoining abrasive grain layers. | 12-16-2010 |
20100317268 | SCRATCH REMOVAL DEVICE AND METHOD - A polishing wheel including a lower polishing surface and defining a different color from a secondary portion of the polishing wheel, so as to indicate wear of the polishing surface. The polishing surface includes a plurality of main radial flutes extending from a central passage to an outer edge. A reduced profile for the main radial flutes is provided adjacent to the outer edge. A plurality of secondary radial flutes is provided extending from the outer edge, but not in communication with either the central passage or the main radial flutes. | 12-16-2010 |
20100323596 | NOTCHED GRIND WHEEL AND METHOD TO MANUFACTURE A ROTOR BLADE RETENTION SLOT - A grind wheel includes a rim having at least one notch formed in the rim to grind a slot base of a blade retention slot within a rotor disk. | 12-23-2010 |
20110021123 | Multi-functional polishing pad - The polishing pad is suitable for polishing patterned semiconductor substrates containing at least one of copper, dielectric, barrier and tungsten. The polishing pad includes a polymeric matrix; and the polymeric matrix being a polyurethane reaction product of a polyol blend, a polyamine or polyamine mixture and toluene diisocyanate. The polyol blend is a mixture of 15 to 77 weight percent total polypropylene glycol and polytetramethylene ether glycol; and the mixture of polypropylene glycol and polytetramethylene ether glycol having a weight ratio of the polypropylene glycol to the polytetramethylene ether glycol from a 20 to 1 ratio to a 1 to 20 ratio. The polyamine or polyamine mixture is 8 to 50 weight percent; and the toluene diisocyanate is 15 to 35 weight percent total monomer or partially reacted toluene diisocyanate monomer. | 01-27-2011 |
20110039485 | Apertured Abrasive Disk Assembly With Improved Flow Dynamics - The evacuation properties of an abrasive disk are improved by forming its apertures to exhibit a configuration that will direct process fluids onto or away from a workpiece (or contact) interface through capillary action, surface tension/affinity, and/or boundary layer pump actions. The capillary action is accomplished by modifying the geometries of the apertures to form capillary tubes, where the orientation and lift angle of the capillary tubes is controlled to improve the flow of relatively thin layers of liquids. The surface tension/affinity between a liquid material and the abrasive disk is controlled by modifying the through-hole apertures to exhibit a serrated inner surface, which will decrease the attraction between the material of the abrasive disk and the process liquid. A plurality of apertured disks may be stacked, and their respective apertures properly arranged on each surface, to create a Tesla pump such that the kinetic energy associated with rotation of the disk assembly will preferentially bias both the vertical and tangential flow of liquids between the working surface and the disk assembly. | 02-17-2011 |
20110053479 | HYDROPHOBIC CUTTING TOOL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a cutting tool is disclosed. An object of the manufacturing method of a cutting tool is to reduce contamination of an abrasive layer surface, particularly, agglomeration contamination due to slurry by improving hydrophobicity maintaining performance of an abrasive layer. A cutting tool according to the method of manufacturing comprises an abrasive layer on a base member, the abrasive layer having abrasives bonded to a surface thereof; and a coating on the surface of the abrasive layer that is a hydrophobic material film. | 03-03-2011 |
20110065369 | ROUGHING-GRINDING DISC - A roughing-grinding disc consists of a plurality of part discs, which are flat in design, are located closely against one another, unconnected and uncovered, in an outer working region, are rigidly connected to one another in an inner connecting region located within the working region and are provided with a hub passing through the grinding disc in a centre opening. | 03-17-2011 |
20110076928 | Dual-pore structure polishing pad - The polishing pad is useful for polishing at least one of magnetic, optical and semiconductor substrates. A porous polishing layer includes a dual porosity structure within a polyurethane matrix. The dual porosity structure has a primary set of pores having pore walls with a thickness of 15 to 55 μm and a storage modulus of 10 to 60 MPa measured at 25° C. In addition, pore walls contain a secondary set of pores having an average pore size of 5 to 30 μm. The porous polishing layer is either fixed to a polymeric film or sheet substrate or formed into a woven or non-woven structure to form the polishing pad. | 03-31-2011 |
20110111678 | ABRASIVE ARTICLE WITH IMPROVED GRAIN RETENTION AND PERFORMANCE - An abrasive article with improved grain retention and performance and method of making are disclosed. The abrasive article with improved grain retention results in an article with improved performance and longer article life. | 05-12-2011 |
20110143641 | ABRASIVE ARTICLE FOR USE WITH A GRINDING WHEEL - An abrasive article for use with a grinding wheel including an abrasive body having abrasive grains contained within a matrix of bond material, the abrasive body having a plurality of arm portions defining a twisted path having a plurality of linear portions joined by a plurality of turns. | 06-16-2011 |
20110171892 | Sanding Block - A sanding block for sanding high and extended surfaces configured for use in combination with an attached pole. The sanding block is round in shape and is rotationally mounted on a pole mount that interfaces between the sanding block and the pole, which attaches to a rotatable hub of the pole mount. This allows the sanding block to rotate during use and the pole to be rotated to different angles in relation to the flat working surface of the sanding block. Adjacent surface marring is prevented by the rotation of the sanding block upon contact of a side edge with such an adjacent surface. Optionally the pole mount can be locked to prevent rotation if desired and a barrel can provide an interface between the pole and the pole mount. This barrel can be straight, angled, or adjustable for angle, in the different preferred embodiments. | 07-14-2011 |
20110177768 | ABRASIVE WHEEL COMPRISING A FAN-LIKE STRUCTURE - The present invention provides an abrasive wheel that comprises a ring-shaped abrasive surface and an integrally formed central portion. The ring-shaped abrasive surface has an outer peripheral edge and an inner peripheral edge. The integrally formed central portion comprises an attachment portion for attaching the abrasive wheel to a rotation source and a plurality of fan blades for directing air-flow over the ring-shaped abrasive surface. The plurality of fan blades are positioned radially inwardly of the inner peripheral edge of the ring-shaped abrasive surface. | 07-21-2011 |
20110212674 | Abrasive annular grinding wheel - A flat or center depressed abrasive grinding wheel, comprising an abrasive discoidal element which is associable, substantially coaxially, with the free end of a rotating shaft of a grinder, having at least one substantially central through hole, a first face which can be arranged, in the assembly configuration, so as to be substantially directed toward the grinder and which forms the back of the discoidal element, and a second face, which is opposite to the first face. The discoidal element comprises at least one first layer of a discoidal abrasive mix defined at the first face and at least one second layer of discoidal abrasive mix defined at least one portion of the second face. The first and second layers of abrasive mix are mutually superimposed and jointly associated. The second layer of abrasive mix has an inside diameter that is substantially larger than the diameter of the through hole. | 09-01-2011 |
20110223845 | DOUBLE ROW ABRASIVE DISC - An abrasive disc ( | 09-15-2011 |
20110281511 | GRINDING DISK HAVING PLANT SEED CAPSULES AS A FILLER AND METHOD FOR THE PRODUCTION THEREOF - The invention relates to a synthetic-resin-bonded grinding disk comprising a mixture of abrasive grain, binding agent, and pore formers, wherein the pore formers are plant seeds and are contained in the finished grinding disk. The grinding disk is composed of 60 to 90 wt % of abrasive grain and 10 to 40 wt % of a binding agent, wherein the plant seeds constitute up to 80 wt % of the binding agent. The plant seeds can contain oil and can be rape seeds, poppy seeds, clover seed, lupin seeds, mustard seeds, serradella vetch seeds, or similar plant seeds. The grinding disk can be produced by mixing abrasive grain, binding agent, and plant seeds, pouring the starting mixture into a mold provided therefor, pressing the mixture, pre-drying the mixture, and curing the grinding disk. The plant seeds are not burned in the production of the grinding disk. The grinding disk is cured at temperatures of up to 250° C., preferably of up to 200° C., more preferably of up to 180° C., and more preferably of up to 150° C. | 11-17-2011 |
20110319001 | GRINDING WHEEL - A grinding wheel for treatment of a cutting edge, the grinding wheel arranged mountable on a rotatable shaft to be brought in rotation by the driven rotation of the shaft, and including two grinding discs ( | 12-29-2011 |
20120028555 | Grinding Tool For Trapezoid Grinding Of A Wafer - A grinding tool for trapezoid grinding of a wafer on a profiling machine includes an annular wheel including a central hole adapted for mounting the wheel on a spindle. The wheel includes at least two grooves disposed at an outer edge of the wheel and the grooves are sized for receiving an outer edge of the wafer. At least one of the grooves is adapted for rough grinding of the wafer. At least one other of the grooves is adapted for fine grinding of the wafer. | 02-02-2012 |
20120045978 | GRINDING WORKPIECE - A grinding workpiece comprises a main body having a joint surface with a predetermined area. A containing chamber with a predetermined depth is inwardly extended from a central position of the joint surface, and an opening is formed on the joint surface. A grinding material is disposed to a portion corresponding to the joint surface of the periphery of the opening. | 02-23-2012 |
20120083193 | UNIVERSAL ABRASIVE DISC - An abrasive disc adapted to mount on a surface of a sander, such as an orbital sander, having either five or eight dust extraction holes is provided. The abrasive disc includes a plurality of apertures arrangeable to at least partially overlap each of the five or eight dust extraction holes of the orbital sander. | 04-05-2012 |
20120122384 | ABRASIVE DISC WITH UNIVERSAL HOLE PATTERN - An abrasive disc for use with a sanding tool having a plurality of dust collection holes includes a hole pattern consisting of six openings arranged for substantial alignment with the dust collection holes provided in the sanding tool. | 05-17-2012 |
20120135672 | Polishing Tool for Finishing Optically Effective Surfaces on Spectacle Lenses in Particular - The proposed polishing tool has a base body with an open interior space with which the polishing tool can be slidably fitted onto a holder of a tool spindle, initially as far as a latching position. A retaining ring placed in an annular groove of the interior space engages in a counter-groove of the holder. The polishing tool can then be slid further onto the holder under the polishing work pressure, until, under the simultaneous action of torque, driver elements of the base body engage in driver counter-elements of the holder for transmitting rotary movement. At least in the latter relative position between the polishing tool and tool spindle, the retaining ring provides a seal against penetration of the abrasive polishing agent. | 05-31-2012 |
20120142260 | ABRASIVE ARTICLE FOR SHAPING OF INDUSTRIAL MATERIALS - An abrasive article including a base having an annular shape defining a central opening; and a mounting assembly coupled to the base, wherein a portion of the mounting assembly is under a compressive force, and a grinding segment coupled to the mounting member. | 06-07-2012 |
20120231712 | METHOD OF MAKING A GRINDING DISK AND A GRINDING DISK - 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. | 09-13-2012 |
20120231713 | OPTICAL QUALITY SURFACING TOOL - An optical-grade surfacing tool ( | 09-13-2012 |
20120252330 | OUTER BLADE CUTTING WHEEL AND MAKING METHOD - In an outer blade cutting wheel comprising an annular thin disc base of cemented carbide having an outer diameter of 80-200 mm, an inner diameter of 30-80 mm, and a thickness of 0.1-1.0 mm, and a blade section disposed on an outer periphery of the base, the blade section comprises diamond grains and/or CBN grains bound with a metal bond having a Young's modulus of 0.7-4.0×10 | 10-04-2012 |
20120270484 | ROTARY GRINDING TOOL AND ITS PRODUCTION METHOD - An inexpensive rotary grinding tool with reduced noise level of the grinding is provided. The rotary grinding tool comprises a metal disk having a grinding surface on at least a part of its surface and a holder for supporting the metal disk. The grinding surface has hard grains having a Mohs hardness in excess of 9 brazed thereon at a surface density of at least 20 grains/cm | 10-25-2012 |
20130143476 | METAL-BONDED DIAMOND GRINDING WHEEL PREPARED BY SELF-PROPAGATING PRESSURE-LESS SINTERING AND A PREPARATION METHOD THEREOF - The invention discloses a metal-bonded diamond grinding wheel prepared by self-propagating pressure-less sintering and a preparation method thereof. The metal bonded diamond grinding wheel mainly comprises a working layer and a non-working layer, wherein the working layer comprises metal bond and grinded diamond, the non-working layer is metal bond, and the metal bond in the working layer and non-working layer have the same components that comprise metal powders of Cu, Al, Ni, Ti, Sn, and Co. To prepare the metal-bonded diamond grinding wheel prepared by self-propagating pressure-less sintering solves the problems of high energy consumption and low manufacture efficiency in the current sintering processes of the metal bonded diamond grinding wheel, and improves the binding force of the metal bond to the grinded diamond by forming carbides between the bond and the grinded diamond. | 06-06-2013 |
20130157552 | Grinding Disk - A grinding disk in particular for rotary fine machining of surfaces has a support plate and a drive connector connecting the grinding disk to a rotary drive machine. The drive connector is provided at a top side of the support plate. An elastically deformable cushion is disposed at a bottom side of the support plate. The cushion is covered with a working medium or with an adhesive coating for detachable attachment of a working medium disk. A cover is disposed on the support plate so as to define an axial intermediate spacing, wherein the cover is embodied as a mechanically loadable structural part and is connected fixedly at least to an outer rim of the support plate. Primarily radially extending ribs are disposed between the support plate and the cover and connected at least at some locations with the support plate and the cover. | 06-20-2013 |
20130203327 | Rotating Disc for Machining Material Surfaces - Proposed is a method for producing a rotating disc for machining material surfaces, said disc comprising a disc-shaped main body ( | 08-08-2013 |
20130203328 | Bonded Abrasive Wheel - A bonded abrasive wheel comprises ceramic shaped abrasive particles retained in a binder. The ceramic shaped abrasive particles are bounded by a respective base, top and plurality of sides connecting the base and the top. Adjacent sides meet at respective side edges having an average radius of curvature of less than 50 micrometers. | 08-08-2013 |
20130225055 | In-Situ Airfoil Contouring Tool - A tool for in-situ airfoil contouring is provided. The tool has a pathway for an airfoil edge wherein the edge movement is limited and further wherein the edge is exposed to a grinding structure having a preselected profile shape therein. The tool makes this contouring process available for airfoils without the necessity of removing the airfoils from, for example, an aircraft engine. | 08-29-2013 |
20130252521 | SUPER HARD ALLOY BASEPLATE OUTER CIRCUMFERENCE CUTTING BLADE AND MANUFACTURING METHOD THEREOF - The disclosed cemented carbide base outer blade cutting wheel comprises a base in the form of an annular thin disc of cemented carbide, and a blade section on the outer periphery of the base. The blade section contains: diamond and/or CBN abrasive grains pre-coated with a magnetic material; a metal or alloy bond formed by electroplating or electroless plating for bonding abrasive grains together and to the base; a resin infiltrated between abrasive grains and between abrasive grains and the base, said resin being a thermoplastic resin having a melting point of up to 350° C. or a thermoset resin obtained by curing a liquid thermosetting resin composition having a curing temperature of up to 350° C. The method for manufacturing said outer blade cutting wheel is also disclosed. | 09-26-2013 |
20130252522 | SUPER HARD ALLOY BASEPLATE OUTER CIRCUMFERENCE CUTTING BLADE AND MANUFACTURING METHOD THEREOF - The disclosed cemented carbide base outer blade cutting wheel comprises a base in the form of an annular thin disc of cemented carbide, and a blade section on the outer periphery of the base. The blade section contains: diamond and/or CBN abrasive grains pre-coated with a magnetic material; a metal or alloy bond formed by electroplating or electroless plating for bonding abrasive grains together and to the base; and a metal or alloy binder having a melting point of up to 350° C. infiltrated between abrasive grains and between abrasive grains and the base. The method for manufacturing said outer blade cutting wheel is also disclosed. | 09-26-2013 |
20130273822 | Grinding Lamella for Arrangement on a Grinding Wheel Which Can Be Driven in Rotation About an Axis of Rotation - A grinding lamella | 10-17-2013 |
20130331015 | CUP TYPE GRINDING WHEEL - Cup type grinding wheel to be attached to a rotary tool includes a plastic base plate made of a glass fiber-reinforced plastic, a metal annular plate with pieces of grindstone on a fixing surface of the metal annular plate, and fasteners for integrating the plastic base plate with the metal annular plate. Heads of fasteners are positioned at the same level as the fixing surface or at a lower level than the fixing surface toward the plastic base plate. | 12-12-2013 |
20130331016 | CUP TYPE GRINDING WHEEL - Cup type grinding wheel to be attached to a rotary tool includes a plastic base plate made of a glass fiber-reinforced plastic, a metal annular plate with pieces of grindstone or a ring-shaped grindstone on a fixing surface of the metal annular plate, and fasteners for integrating the plastic base plate with the metal annular plate. Heads of fasteners are positioned at the same level as the fixing surface or at a lower level than the fixing surface toward the plastic base plate. | 12-12-2013 |
20140051340 | ABRASIVE ARTICLE FOR SHAPING OF INDUSTRIAL MATERIALS - An abrasive article including a base having an annular shape defining a central opening; and a mounting assembly coupled to the base, wherein a portion of the mounting assembly is under a compressive force, and a grinding segment coupled to the mounting member. | 02-20-2014 |
20140087640 | SUPERHARD CONSTRUCTIONS AND METHODS OF MAKING SAME - A superhard construction comprises a substrate and an ultra hard material layer formed over the substrate. One of the interface surface of the substrate or the interface surface of the ultra hard material layer comprises a plurality of spaced-apart projections arranged to project from the interface surface, the interface surface between the spaced-apart projections being uneven. A further superhard construction comprises a plurality of projections arranged to project from the interface surface which abut one or more adjacent projections along an edge thereof on the surface from which the projections project, and extend over all or a majority of the interface surface. One or more of the surfaces of all or a majority of the projections extend in one or more planes which are not substantially parallel to the plane of the exposed outer surface of the ultra hard material layer and/or in one or more planes which are not substantially parallel to a plane through which the central longitudinal axis of the substrate extends. | 03-27-2014 |
20140242894 | POLISHING PAD AND METHOD FOR PRODUCING SAME - Provided are: a polishing pad which is capable of alleviating a scratch problem that occurs when a conventional hard (dry) polishing pad is used, and which is excellent in polishing rate and polishing uniformity and is usable not only for primary polishing but also for finish polishing; and a method for producing the polishing pad. The polishing pad is for polishing a semiconductor device and includes a polishing layer having a polyurethane-polyurea resin molded body containing cells of a substantially spherical shape. The polyurethane-polyurea resin molded body has a ratio of closed cells of 60 to 98%. The polyurethane-polyurea resin molded body has a ratio tan δ of a loss modulus E″ to a storage modulus E′ (loss modulus/storage modulus) of 0.15 to 0.30. The storage modulus E′ is 1 to 100 MPa. The polyurethane-polyurea resin molded body has a density D of 0.4 to 0.8 g/cm | 08-28-2014 |
20140256238 | COMPOSITE ABRASIVE WHEEL - A composite abrasive wheel comprises primary and secondary abrasive portions. The primary abrasive portion comprises shaped ceramic abrasive particles retained in a first organic binder. The secondary abrasive portion is bonded to the primary abrasive portion, and comprises secondary crushed abrasive particles retained in a second organic binder. The primary abrasive portion comprises a larger volume percentage of the shaped ceramic abrasive particles than the secondary abrasive portion. A central aperture extends through the composite abrasive wheel. | 09-11-2014 |
20150099440 | METHOD FOR MANUFACTURING A POLISHING PAD AND POLISHING PAD - A method for manufacturing a polishing pad for a hand tool having a working element performing an orbital, random orbital, and/or a rotational movement, the polishing pad having attached layers including: a resilient damping layer, an adhesive layer for connection to a corresponding layer located at a bottom surface of the working element, and a polishing layer including microfiber for polishing a surface of a work piece. The method includes the steps of: providing a casting mold having a recess corresponding to form of the polishing pad and a lid for closing the recess; placing the adhesive layer into the recess; pouring the resilient material for the damping layer into the recess on top of the adhesive layer; placing the polishing layer on the resilient material; closing the recess with the lid; and manufacturing the polishing pad under external heat supply until the resilient material is cured. | 04-09-2015 |
20150343600 | ROTATING WHEEL MOUNTING STRUCTURE - A rotating wheel mounting structure includes a rotating shaft having a flat segment, a rotating wheel mounted on the rotating shaft, a locating member mounted on the rotating shaft and stopped at one side of the rotating wheel, a locating member mounted has a through hole and a flat engaging segment that structurally matches the flat segment of the rotating shaft, and a lock member fastened to the rotating shaft to lock the locating member and the rotating wheel, and thus fixation between the locating member and the rotating shaft prohibits the lock member from being rotated in the reversed direction and loosened due to an inertia on the rotating wheel. | 12-03-2015 |
20150343602 | CUP GRINDING WHEEL - A cup grinding wheel | 12-03-2015 |
20160114465 | Grinding Tool and Method of Manufacturing the Same - A grinding tool includes a rigid support body and a carrier substrate. The carrier substrate is attached to the support body, and is supported by the support body. Two opposing surfaces of the carrier substrate respectively define a working surface and a non-working surface. A plurality of first abrasive particles are affixed on the working surface, and a plurality of second abrasive particles are affixed on the non-working surface. The first abrasive particles have a first average size, and the second abrasive particles have a second average size smaller than the first average size. The carrier substrate is attached to the support body at the non-working surface. Moreover, a method of manufacturing the grinding tool is described herein. | 04-28-2016 |
451549000 | Work guide | 1 |
20100151778 | ABRASIVE ARTICLE AND METHOD OF MAKING THE SAME - An abrasive article and method of making same wherein the abrasive article comprises a mounting assembly and an abrasive attachment assembly wherein the first interlock member of the mounting assembly and the second interlock member of the abrasive attachment assembly are configured to align the central axis of the abrasive attachment assembly and the central axis of the mounting assembly, and the first interlock member releasably engages the second interlock member. The abrasive article is adapted to clean a work surface area around studs using a rotary tool, including, for example, a drills or die grinder. | 06-17-2010 |