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WO/1995/024989A1 |
A method of dressing a threaded grinding wheel comprising rotating the grinding wheel and dressing tool about their respective axes and bringing the tool into contact with a point on a flank of the grinding thread. The dressing tool is t...
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WO/1995/020468A1 |
The invention concerns a profiled dressing cylinder (1) for grinder wheels, the dressing cylinder having a main body and diamond or boron nitride cutters. The main body has teeth (2) with cutting edges (6). The cutting edges (6) are coat...
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WO/1995/018697A1 |
A device (18) for conditioning the surface of a polishing pad (15) covering a platen mounted on a polishing machine for rotation about a vertical axis, comprising a rigid carrier element (20) carrying cutting means (25) on its bottom sur...
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WO/1995/000276A1 |
A method of dressing a threaded grinding wheel (20) for grinding crown gears. The method comprises providing a dressing tool (30) in the form of a pinion member (14) with the dressing tool (30) having the same pitch as a mating pinion me...
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WO/1994/004599A1 |
The present invention relates to an article of manufacture or polishing pad (10) for altering a surface of a workpiece, such as polishing or planarizing a semiconductor device. The article includes a polymeric matrix (14) impregnated wit...
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WO/1993/024274A2 |
Method for renewing grinding wheel surfaces in a machine for grinding ophtalmic lenses, comprising one or more diamond wheels (2, 3, 4, 5), gripping means (7, 8) capable of receiving an ophtalmic lense, and control means. Once wheel wear...
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WO/1993/024274A1 |
Method for renewing grinding wheel surfaces in a machine for grinding ophtalmic lenses, comprising one or more diamond wheels (2, 3, 4, 5), gripping means (7, 8) capable of receiving an ophtalmic lense, and control means. Once wheel wear...
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WO/1993/019881A1 |
The invention concerns a method and device for simultaneously working different parts of the surface of one and the same workpiece using two abrasive wheels. The method calls first for the smooth-polishing positions of the two abrasive w...
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WO/1993/018888A1 |
To grind linings (2) of a lined drum (1) while it is running, a slider (9) is moved to and fro over the linings. According to the invention, the slider is moved to and fro by the inside slot (17) of a driving belt, the driving belt being...
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WO/1993/004810A1 |
Disclosed herein is a process and apparatus for grinding tooth surfaces of spur and helical gears by a generating method. The outer tooth surfaces (4) of a theoretical ring gear (6) are conjugate to the grinding surfaces (3) along the wi...
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WO/1993/002836A1 |
A method and apparatus for sharpening the surface of a grindstone (1) in a pulp grinder (8). In the process a water jet (2) removing from the surface of the grindstone (1) bonding material found between abrasive grains is directed to the...
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WO/1993/002837A1 |
A dressing tool for use in methods for ''dressing'' coated abrasives (e.g. such as an endless belt) is disclosed. The tool has peripheral surfaces with abrasives that are generally as wide as the coated abrasives. The tool affords simult...
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WO/1993/001896A1 |
A cleaner for attachment to a wide belt sander, the cleaner being mounted adjacent the top roller of the belt sander. The cleaner is applied to the sanding belt only during operation of the sander.
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WO/1992/019422A1 |
Tool (10) with diamonds (35, 35', 36) for dressing grinders (90) having a roller (11) rotating on a supporting shank (20) round an axis that intersects the axis of the shank (20) at an angle of 45�, with operative areas (30, 31) having...
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WO/1992/011967A1 |
Crown wheels (21) are ground on a grinding machine with the aid of a hobbing grinding disc (11) of ceramic material which is formed on the same grinding machine with the aid of a dressing crown wheel (13) with one or more teeth (14) prov...
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WO/1992/003259A1 |
A tool (42), for dressing both the inside and outside working surfaces (92, 94) of cup-shaped abrasive wheels (28) used for grinding gears, is disclosed along with methods and apparatus for using the tool (42). The working portion of the...
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WO/1991/009706A1 |
This invention relates to a machining table of a grinding machine equipped with a work table (9) moving in the X-axis direction and the Y-axis direction. The machining table is constituted of the X-axis and Y-axis defined on the upper su...
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WO/1991/004135A1 |
The proposed method and device for its implementation are intended for dressing a grinding wheel made of a hard-to-work material, like a hard alloy, constructional or instrument ceramics, and consist in moving the lapping tool (5) mounte...
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WO/1991/002626A1 |
The invention calls for the use of a saw to trim up abrading discs. The saw has a circular metal blade (1) with, located round the circumference, cutting segments (2) containing abrading granules, preferably diamond granules.
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WO/1990/015693A1 |
In the process for dressing shaped grinding wheels, the latter are preliminarily machined in a first working pass with a first rotatable dressing tool made up of several discs (12) with cutters (14). This produces a form approximating in...
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WO/1989/008006A1 |
A rotary dressing roller of the generating type and a method and apparatus for dressing a substantially cup-shaped grinding wheel for longitudinally curved tooth gears. The rotary dressing roller (40) is provided with a base portion (42)...
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WO/1989/005703A1 |
A machine tool for making and trimming of instruments and finishing of gears comprises three spindles (4, 5, 15) mounted in their stocks (2, 3, 17) and provided with drives (8, 11), two of the spindles (4, 5) being synchronously intercon...
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WO/1989/005704A1 |
A method of making an abrasive geared instrument, conjugating with a machining gear wheel (2), from a flat abrasive disk (1), consists in axially feeding the flat abrasive disk (1) and providing in the contact zone for the presence of a ...
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WO/1989/005711A1 |
In a process for dressing a grinding wheel (12), a dressing roller (40) is moved along a rough surface (30, 31) of the grinding wheel (12) by a numerically-controlled multicoordinate moving unit (46, 47), thereby producing a predetermine...
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WO/1989/003745A1 |
This invention relates to a standalone machining center which can perform cutting, electric discharge machining, electrochemical grinding and the like. The machining center comprises means for moving a work table (1) on a machine bed (2)...
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WO/1988/007910A1 |
In a spindle system for machine-tools, a first working spindle is arranged in a main housing and a second working spindle is arranged in an auxiliary unit. The auxiliary unit (33) is arranged essentially inside the main housing (9). In o...
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WO/1988/006953A1 |
A rotary dressing roller of the generating type and a method and apparatus for dressing a substantially cup-shaped grinding wheel for longitudinal curved tooth gears. The rotary dressing roller (40) is provided with a base portion (42) w...
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WO/1988/005367A1 |
In order to eliminate the need to define in advance the grinding line (SL 2) between trimming wheel (12) and grinding wheel (10) and to reset the C axis to zero after each trimming operation of the grinding wheels (10), a trimming wheel ...
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WO/1987/001065A1 |
A method of conditioning a superabrasive hone mounted on a support drum, which comprises rotating the drum, rotating a diamond conditioning wheel, urging the conditioning wheel and the drum into contact with one another and axially trave...
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WO/1986/003706A1 |
For the purpose of dressing a rotating grinding wheel (9) which grinds a workpiece (32) held in a chuck (30), there is mounted on an extension (34) of the chuck an annular dressing tool having an inner lining (36a) of, for example, diamo...
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WO/1986/000037A1 |
A dressing operation is carried out simultaneously during a grinding operation. This dressing operation is carried out by applying a voltage between a dresser electrode (6) and a conductive grinding wheel (1) while supplying a grinding f...
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WO/1983/004322A1 |
Dressing-grinding process for electronically controlled grinding machines for round or plane grinding of workpieces. With a view of maintaining a constant effective rough depth during the grinding process, having free choice of the rotat...
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WO/1982/004214A1 |
To obtain a precision sharpening of tools provided with cutting elements of polycrystalline synthetic diamond by means of an abrasive wire, the abrasive diamond disc of a known grinding or sharpening machine is replaced by an abrasive wire.
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WO/1981/000980A1 |
An abrasive belt cleaner comprising a rubber pad (3) secured to a base portion (2) whereby to clean an abrasive belt on a sanding machine the cleaner is passed through the machine.
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JP2024072468A |
[Problem] To clarify when to replace a product. [Solution] A two-dimensional code 31, which is a mark indicating the usage limit of the chuck table 20, is embedded in the frame surface 24. The two-dimensional code 31 is configured to be ...
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JP7490304B2 |
A cutting apparatus includes a chuck table having a holding surface used for holding either a workpiece unit that includes a plate-shaped workpiece supported on an annular frame by a tape or a tray shaped similarly to the annular frame, ...
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JP7486265B2 |
A workpiece processing method includes: a dresser preparing step of preparing a dresser of a predetermined thickness; a fixing step of fixing the workpiece and the dresser on a support member adjacently to each other in a first direction...
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JP2024067256A |
[Problem] To predict polishing abnormalities in advance. [Solution] A polishing table 5 that supports a polishing pad 2, a polishing head 7 that can press a substrate against a polishing surface 2a of the polishing pad 2, state reflectio...
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JP2024064081A |
An object of the present invention is to reduce burrs remaining in a cutting groove by one cutting without reducing the speed when cutting an area formed of a ductile material. [Solution] A cutting method for cutting a workpiece having a...
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JP2024064482A |
The present disclosure provides a substrate processing apparatus that can prevent liquid remaining on the upper surface of the cover from falling downward from the outside of the distal end of the cover when an arm of a swinging module s...
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JP7481518B2 |
To improve a transfer rate and the processability of truing, and to improve the accuracy of a groove formed at a truer.In a truing method for forming a groove of a grinding stone 55 for grinding a chamfer part of a wafer W by using a dis...
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JP2024062728A |
An object of the present invention is to provide a method for grinding a workpiece that can reduce variations in quality of the workpiece. [Solution] A method for grinding a workpiece by grinding the workpiece with a grinding wheel inclu...
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JP2024057323A |
The present invention provides a dressing board that makes it easy to determine the shape of the tip of a cutting blade. [Solution] A dressing board used for dressing the tip of a cutting blade, which has a bottom surface that is held on...
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JP2024517999A |
A method consisting of planarizing the substrate with a functionalized chemical planarizing pad. Functionalized chemical planarization pads include multiple functional groups bonded to the material of the pad. The functional group is con...
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JP2024055431A |
The present invention provides a gear grinding machine and a dressing method that can be downsized. A gear grinding machine 10 includes a machine stand 13, a column 20, a support part 30, and a dressing device 40. The column 20 rotatably...
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JP2024054715A |
[Problem] To provide a technology that can suppress the occurrence of clogging in a flow path due to polishing liquid remaining in the flow path, and also detect the occurrence of clogging in the event that the flow path is clogged. prov...
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JP2024053921A |
[Problem] To provide a grinding machine that can prevent the machine from being seriously damaged during a power outage at a low cost by suppressing the increase in size of the machine. [Solution] A grindstone cutting shaft that relative...
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JP7465498B2 |
The present invention relates to a cyber-physical system for optimizing a simulation model for chemical mechanical polishing based on actual measurement data of chemical mechanical polishing. The chemical mechanical polishing system incl...
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JP7465003B2 |
Disclosed is a semiconductor strip grinding apparatus. The semiconductor strip grinding apparatus comprises: a chuck table for supporting a semiconductor strip; a grinding unit for grinding and removing a surface portion of a semiconduct...
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JP7465277B2 |
An apparatus for chemical mechanical polishing includes a platen having a surface to support a polishing pad, a carrier head to hold a substrate against a polishing surface of the polishing pad, a pad conditioner to press an abrasive bod...
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