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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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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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JP7464327B2 |
A nano-layer (41) lubricated diamond grinding wheel (20) grinding device based on a shock wave cavitation effect. The grinding device comprises a control system, an acceleration module, a shock wave speedup module, a machining module and...
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JP7462818B2 |
To provide a workpiece processing device with a simple configuration that is capable of chamfering a workpiece easily and efficiently with high accuracy.A concave grinding section 5b of an outer peripheral part of a grindstone 5 has circ...
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JP2024046479A |
An object of the present invention is to provide a dressing completion determination device that can determine the completion of dressing of a grinding wheel with high accuracy without requiring complicated preparation work. An integrate...
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JP2024046255A |
An object of the present invention is to provide a rotary dresser that has little resistance during dressing, has little variation in cutting quality, and can perform stable dressing. [Solution] A dress having an annular backing layer 30...
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JP7460334B2 |
A method for continuous generating grinding of at least two gear workpieces with a topologically modified grinding worm comprising a topologically modified worm region to grind tooth flanks which are topologically modified on the gear wo...
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JP2024043781A |
An object of the present invention is to suppress adhesion of polishing debris to the outer peripheral portion of a chuck table. In a polishing process, an outer peripheral portion of a wafer 100 is pressed against a polishing pad 77 by ...
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JP7458868B2 |
To provide a holding jig which enables a dresser board to be suctioned and held on a holding table when both surfaces of the dresser board are cut, and to provide a usage of the holding jig.A holding jig of a dresser board for holding th...
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JP7451948B2 |
To provide a processing quality prediction system that can predict a state of an affected layer generated in a work-piece, with higher accuracy.A processing quality prediction system 1 comprises: a grinder main body 11 that performs grin...
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JP2024036739A |
An object of the present invention is to prevent a holding part of a holding mechanism (pendulum type clamp) provided on a spinner table from piercing a dressing tool that cannot be penetrated. [Solution] The spinner table has supports e...
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JP2024035879A |
The present invention provides a method for cutting a workpiece that can improve processing efficiency. [Solution] A method for cutting a workpiece by cutting the workpiece with a cutting blade, the method includes a first fixing step of...
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JP7450460B2 |
To provide a wafer processing method that can thin a wafer while suppressing damage to the outer circumference of the wafer.A wafer processing method includes: a blade preparation step 1001 of preparing a cutting blade whose outer periph...
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JP7450134B1 |
The rotary dresser includes a base metal 103 having an outer peripheral surface and an abrasive layer 101 provided on the outer peripheral surface of the base metal 103. The abrasive grain layer 101 has a bonding material 203 provided on...
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JP2024033597A |
An object of the present invention is to determine the usage status of an abrasive surface in a short time and with high accuracy. An abrasive surface determination device 30 includes a storage section 44, an output section 60, a class i...
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JP2024511030A |
The diamond disk includes a shank base, a bonding layer formed on the surface of the shank base, and a plurality of boron-doped diamonds arranged to be exposed to the bonding layer, and at least one of the plurality of boron-doped diamon...
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JP7446722B2 |
Provided is a grinding apparatus which is able to allow a user to replace a grinding wheel in a timely manner, and to perform dressing or the like to regenerate a surface of a grinding stone. According to the present invention, the grind...
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JP2024029312A |
An object of the present invention is to reduce the amount of dust remaining on a support table of a dressing unit. [Solution] A polishing device that performs dry polishing on a workpiece, which includes a holding table that holds the w...
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JP7442999B2 |
To provide a grinding unit that can rotate a grinding grindstone around a unique rotation axis different from a rotation axis of a tool spindle and a complex machining machine equipped with the same.The complex machining machine comprise...
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JP2024029210A |
The present invention is to automatically, quickly, repeatably, and accurately move a workpiece between tools without any manual intervention, such as grinding the inner diameter, outer diameter, and ribs of tapered roller bearing cones....
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JP7441376B2 |
Provided is a novel dresser capable of imparting high flatness to a polishing pad. A dresser for a surface of a polishing pad is provided, comprising a circular dressing surface having a diameter DCD and facing the pad surface, and pel...
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