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WO/2002/034468A1 |
A method of regenerating a vitrified grinding wheel comprising a metal core and an outer peripheral wheel part connected thereto and capable of effectively utilizing abrasive grains and the other resources, comprising a wheel stripping p...
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WO/2002/030620A1 |
Disclosed are a balancing apparatus for a grinding stone to automatically adjust the balance of the grinding stone during the rotation of the grinding stone and a wheel grinder having the balancing apparatus. The balancing apparatus has ...
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WO/2002/026432A1 |
A bevel edge wheel (10) having a swarf clearance slot (18) across the shaping face. The slot reduces the amount of hand removal of swarf from a processed lens blank.
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WO/2002/016082A1 |
The invention relates to a honing tool, in particular an inner- or outer-toothed honing ring for the finishing of gearwheels, comprising a synthetic resin bonded matrix (1), with ceramic bound hollow abrasive particles (2) set therein.
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WO/2002/006553A2 |
The invention relates to a method for the production of cutting bodies with a base body and a hard material comprising a cutting layer, coated on the base body by means of laser beam deposition, whereby a base body blank is formed with r...
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WO/2001/098029A2 |
The aim of the invention is to facilitate the attachment or detachment of tools comprising a disc-shaped tool body, especially cutting-off, rough-grinding or serrated wheels, to or from a machine tool in such a way that such operations c...
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WO/2001/098024A1 |
A process, multi-functional grinding wheel (30) and apparatus for mirror-finishing the edge of at least one of a cut unfinished glass recording disk (10) or a cut unfinished glass-ceramic recording disk. The process includes (a) rough gr...
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WO/2001/091968A1 |
A method and apparatus for multiple chamfering of a wafer. A rotating grinding wheel has a first groove therein for rough grinding a peripheral edge margin of the wafer and a rotating grinding wheel has a second groove therein for precis...
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WO/2001/089766A1 |
The invention relates to a method for grinding metallic workpieces containing, in particular, nickel, whereby a rotationally driven grinding wheel (2) is continuously dressed by a rotationally driven dressing wheel (3) during the grindin...
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WO/2001/066307A2 |
Method and apparatus for shaping the edge (103) of a rigid, brittle materials such as ceramic plates and rigid composite plates utilizing a resin-bonded abrasive wheel.
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WO/2001/064399A1 |
A grinding wheel comprising an inner and outer area. The outer area is made of an abrasive grain in a ceramic bonding and is porous, in addition to having a lower density than the inner area. The inner area (1) is also embodied as an abr...
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WO/2001/062436A1 |
In a polishing method for mirror finishing the peripheral chamfered part of a wafer using an abrasive cloth while supplying abrasive to the peripheral chamfered part in order to enhance the productivity of the polishing process by shorte...
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WO/2001/056745A1 |
The invention relates to sintered metal bonded segments (Sm) with an abrasive action, and containing particles of hard material, for tools for machining or cutting hard and/or brittle materials with a tool support (W)which accommodates t...
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WO/2001/056739A1 |
A grinding pin (53) for grinding notches in the edges of disc workpieces, such as semi-conductor wafers, comprises a metal spindle (132) for mounting in a grinding machine, and an adjoining cylindrical region having axially spaced sectio...
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WO/2001/056947A1 |
Fused abrasive particles comprising alumina (151)-aluminium ytrium oxide (153) composite eutectic material (150). The fused abrasive particles can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-wov...
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WO/2001/056946A1 |
Fused abrasive particles comprising aluminium oxide (151) -aluminium rare (153) eutetic material (150). The fused abrasive particles can be incorporated into abrasive products such as coated abrasives, bonded abrasives, non-woven abrasiv...
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WO/2001/056948A1 |
Fused abrasive particles comprising eutetic material comprising aluminium magnesium oxide (151) - aluminium rare earth oxide (153) eutetic (150). The fused abrasive particles can be incorporated into abrasive products such as coated abra...
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WO/2001/056945A1 |
Fused abrasive particles comprising eutetic material comprising aluminium magnesium oxide (151) - aluminium ytrium oxide (153) eutetic (150). The fused abrasive particles can be incorporated into abrasive products such as coated abrasive...
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WO/2001/053041A1 |
The invention concerns a grindstone exhibiting good abrasive properties while being inexpensive, consisting of stacked layers (12, 13, 14, 15) comprising at least one layer of abrasive grains (14) which includes juxtaposed zones (14A, 14...
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WO/2001/048752A1 |
A process for mirror-finishing the edge of a recording disk raw plate comprising (a) grinding the edge of a recording disk raw plate with a diamond wheel to shape the edge into a trapezoidal configuration; (b) grinding the edge of the re...
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WO/2001/041974A2 |
A method for making an abrasive product comprising forming a structure (1) of a sinterable retaining matrix having at least one first region (2) containing a plurality of abrasive particles embedded therein and at least one second region...
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WO/2001/036153A1 |
A method for the precision two-side machining of flat articles consists of the following: A working displacement 'S' of a workpiece (3) into a machining area takes place between the cutting parts of two rotating abrasive diamond tools (1...
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WO/2001/036154A1 |
A method for precision two-sided machining of flat articles consisting in the following: a workpiece which is based at least on three points is introduced into a machining area between oppositely situated cutting elements of diamond tool...
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WO2000030808A9 |
A method for making a sintered article (14) comprising providing a plurality of individual blocks (19) of sinterable matrix material, arranging said blocks in abutting relationship to form an assembly of said blocks in a sinter mold wher...
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WO/2001/032364A1 |
The invention provides individually made abrasive discs with the primary abrasive surface around the periphery of the disc where the bulk of the abrading action occurs when the disc is in use. The invention also provides a process by whi...
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WO/2001/023142A1 |
Disclosed is an instrument for machining workpices, comprising a tool (2) which can be connected to a drive by means of a shaft (1), whereby said tool (2) can be set into rotating or oscillating motion. The tool (2) is provided with abra...
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WO/2001/010600A1 |
The invention relates to a clamping device for removably fastening a part (grinding wheel (1)) upon a shaft. Said device comprises a clamping nut (3) which can be screwed on the shaft and is used for fastening the part. A chamber (9) con...
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WO/2001/008849A1 |
In a depressed-center abrasive wheel assembly (58) a reinforcement layer (14) of polygonal shape is located between a front face (20) of the abrasive wheel (10) and a front flange (50). The reinforcement layer (14) is dimensioned to enti...
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WO/2000/076727A1 |
A reusable quick change mount including a support unit or backing member (10) and a threaded retainer member or nut (12) having a barrel (20) which is received within a bore (32) in the support unit (10). A resiliently deformable member ...
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WO/2000/074898A1 |
An abrasive product is formed, in a blank making machine, into a layer forming a blank consisting of at least abrasive grains which is then set atop on at least another material layer and assembled thereto. The installation comprises, be...
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WO/2000/073023A1 |
Abrasive tools containing high concentrations of hollow filer materials in a resin bond are suitable for polishing and backgrinding of hard materials, such as ceramic wafers and components requiring a controlled amount of surface defects...
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WO/2000/073022A1 |
Bonded abrasive articles are described wherein a metal borid modified, lead-free vitreous matrix binds abrasive grains, such abrasive articles demonstrate improved performance over vitreous bonded abrasive articles with known vitreous ma...
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WO/2000/071295A1 |
The rotary tool for producing profiles or cuts in hard fragile materials such as marble, granite, stone, glass and the like comprises at least one rotationally symmetrical body (1, 2) involving a configuration defined by the envelope of ...
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WO/2000/066327A1 |
The invention describes an abrasive system comprising a fiber-backed abrasive disc (1) and a backup pad (11) in which the backup pad (11) has spaced portions (12) removed from the circumference such that the disc (1) overlaps in the area...
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WO/2000/066326A1 |
A diamond tool with a mounting member capable of reducing noise and vibration, of making easier attachment and detachment from a tool side, of reducing vibration, of increasing service life, of preventing a beating, and of manufacturing ...
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WO/2000/051789A1 |
A diamond saw blade (D) comprising diamond grindstones (2) attached to the outer peripheral edge of a disc-shaped substrate (1), wherein a ratio of a second value (total areas of end faces (e) of the diamond grindstones (2)) to a first v...
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WO/2000/050202A1 |
A cylindrical, abrasive grinding wheel (10) having a cylindrical abrasive region (12) with an abrasive surface (18) at an outer circular band thereof. The abrasive region includes layers (26) of abrasive particles. The layers (26) of abr...
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WO/2000/045992A1 |
In a computer controlled grinding machine for grinding a cylindrical region (36) and an annular shoulder (38) of a rotatable workpiece (16), relative movement is effected between the workpiece and a grinding wheel (30) mounted on a wheel...
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WO/2000/043163A1 |
The invention relates to a grinding or cutting tool (1) which consists of a base body (4) and a cutting coating (3) melted onto said base body by means of a laser beam. Said cutting coating consists of a metal containing hard material, a...
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WO/2000/040371A1 |
A straight, thin, monolithic abrasive wheel formed of hard and rigid abrasive grains and a sintered bond including a metal component and an active metal component exhibits superior stiffness. The metal component can be selected from amon...
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WO/2000/038883A1 |
The invention relates to a rotating disk (2) for machining material surfaces, comprising a disk-shaped base part (4) which has a central hole (6); a first machining coating (12) which is subjected to wear by abrasion, has a cutting edge ...
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WO/2000/036543A1 |
A grinding wheel system (16) includes a grinding wheel (18) with at least one embedded sensor (20a-20k, 22a-22d). The system (16) also includes an adapter disk (24) containing electronics (50) that process signals produced by each embedd...
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WO/2000/030810A1 |
A diamond blade having a cutting section consisting of diamond abrasive grains and attached to the outer peripheral edge of a substrate in order to decrease the wear of the under-head region of a cutting diamond blade, characterized in t...
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WO/2000/027587A1 |
A flange or mounting assembly (24) for mounting a cutting tool (26) on a drive shaft (22) of a motor (12), which includes an inner flange (30) having a spindle (50), an outer flange (32) and fastening means (36, 34) for retaining the out...
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WO/2000/027593A1 |
A base disk type grinding wheel for high speed grinding, wherein a base disk is made of a rapidly solidified aluminum alloy containing 15 to 40 wt % of Si, 0.5 to 6 wt.% of Cu, 0.2 to 3 wt.% of Mg, the remainder of the alloy being alumin...
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WO/2000/027590A1 |
The invention relates to a clamping device for grinding discs (3, 4) comprising clamping elements which are formed by a clamping flange (1) and a clamping nut (2). A rigid, preferably metallic intermediate ring (5) is arranged between a ...
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WO/2000/027585A1 |
A method and apparatus for conditioning a polishing pad is described. The method includes steps of moving a cylindrical roller having an abrasive substance affixed to it against a moving polishing pad. The roller may be passively rotated...
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WO/2000/024549A2 |
A straight, thin, monolithic abrasive wheel formed of hard and rigid abrasive grains and a sintered metal bond including a stiffness enhancing metal component exhibits superior stiffness. The metals can be selected from among many sinter...
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WO/2000/013868A1 |
A diamond blade having rim type cutting tip for use in apparatus such as cutting saw machine having a structure which rim type cutting tip is able to produce cutting chips with relative large size during cutting operation so that those c...
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WO/2000/013870A1 |
A device for cutting and mirror finishing a single crystal SiC comprising a metal bonded wheel (10) consisting of a flat sheet portion (10a) rotating on the axis Z and a taper portion (10b) provided on the outer side of the flat sheet po...
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