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abrasive  apparatus  device  grinding wheel  grinding  includes  layer  method  polishing  portion  surface  tool  workpiece 
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Grinding disk

Tue, 26 May 2015 08:00:00 EDT

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.



Tools and methods for making and using tools, blades and methods of making and using blades

Tue, 26 May 2015 08:00:00 EDT

Methods and apparatus for making and using tools, for example concrete cutting blades. The tool includes a first layer and second layer that are oppositely disposed. The first and second layers include working surfaces that support at least one working element when the working element is applied to a work piece. Additionally, an intermediate structure is included between the first and second layers. The intermediate structure can include a plurality of components extending in the area between the structural surfaces and the working surfaces.



Hand-held sharpener with multiple abrasive rods to sharpen a cutting edge of a tool

Tue, 26 May 2015 08:00:00 EDT

A multi-rod hand-held sharpener includes a handle with an outer grip surface for a hand of a user, a first abrasive rod having a first outer abrasive surface with a first abrasiveness level, and a second abrasive rod having a second outer abrasive surface with a second abrasiveness level different from the first abrasiveness level. At least one guide surface extends toward the first sharpening surface at a selected guide angle non-orthogonal to the first sharpening surface. The user contactingly engages a side of the tool against the guide surface and a cutting edge of the tool against the first abrasive surface, and then advances the side of the tool away from the guide surface and the cutting edge against the first abrasive surface while maintaining the tool at the selected guide angle. An optional second guide adjacent the second abrasive surface at a different angle facilitates micro-beveling.



Blade sharpening system for multiple blade shapes

Tue, 26 May 2015 08:00:00 EDT

A blade sharpening system using the interior surface of a grinding wheel against which a blade is drawn along its entire length for sharpening. The sharpening system includes a blade holding configuration having multiple hinged arms. A cam operating between two of the hinged arms serves to alter the angle of incidence between the blade and the grinding wheel as the blade is drawn across the grinding wheel. The result is that a wide variety of different blade configurations can be easily accommodated by the sharpening system.



Enclosed polishing apparatus

Tue, 26 May 2015 08:00:00 EDT

An enclosed polishing apparatus include a housing, a fixing seat, a guiding mechanism, and a chain-driven polishing mechanism. The housing includes a bottom housing and a top housing connected to the bottom housing. The fixing seat is securely placed in the bottom housing. The guiding mechanism is placed in the top housing above the fixing seat. The polishing mechanism is movably mounted on the guiding mechanism above the fixing seat. The polishing mechanism is driven and guided by the guiding mechanism to follow a desired polishing contour on a workpiece.



Machine for blasting abrasives

Tue, 26 May 2015 08:00:00 EDT

The object of the present invention is to provide a machine for blasting abrasives that has a simple structure and that solves the problem of abrasives falling when the door for the gateway for the work is opened or closed. The machine for blasting abrasives comprises a chamber 11 for processing, a nozzle 13 that is provided within the chamber 11 for shooting the abrasives (shots) S onto the work W, and a jig 15 for holding the work W at a position facing the nozzle 13. A gateway 17 with a door 19 is formed in the ceiling 11a of the chamber 11. The size of the gateway 17 enables the work W to protrude from the chamber 11 by means of the jig 15 at a position corresponding to the jig 15 that is linearly moving up and down. The door 19 is provided within the chamber 11 so as to seal the gateway by linearly moving up and down and so as to create a vacant plane on the gateway for passing the work by horizontally moving.



Method of shaping an edge of an aerofoil

Tue, 26 May 2015 08:00:00 EDT

An apparatus for shaping an edge of an aerofoil, the apparatus having first and second brushes and each brush having a plurality of bristles. A first motor rotates the first brush about a first axis and a second motor rotates the second brush about a second axis. The axes are arranged substantially parallel to the bristles of the respective brush. A support structure holds the first brush such that the first axis intersects a first surface of the edge of the aerofoil and holds the second brush such that the second axis intersects a second surface of the edge of the aerofoil. There are means to produce relative movement the first and second brushes and the aerofoil such that the first and second brushes move longitudinally along the edge of the aerofoil to shape the edge of the aerofoil.



Method and apparatus for reconditioning digital discs

Tue, 26 May 2015 08:00:00 EDT

An automated method for reconditioning a plurality of digital discs within a reconditioning apparatus is disclosed. The method comprises holding the digital discs in a load area, and then transferring each of the digital discs from the load area to at least one workstation with a disc transfer mechanism. The method also comprises reconditioning each of the digital discs transferred to the workstation with at least one worktool operable to remove a portion of the protective coating of each of the digital discs without removal of the data underlying the protective coating. The method further comprises transferring each of the digital discs from the workstation to an unload area with the disc transfer mechanism, and then holding the digital discs in the unload area for manual retrieval. Advantageously, the digital discs may be automatically reconditioned within the reconditioning apparatus without manual manipulation of the digital discs during the reconditioning process. Various exemplary embodiments of the reconditioning apparatus and associated method are provided.



Pin driven flexible chamber abrading workholder

Tue, 26 May 2015 08:00:00 EDT

Flat-surfaced workpieces such as semiconductor wafers or sapphire disks are attached to a rotatable floating workpiece holder carrier that is supported by a pressurized-air flexible elastomer sealed air-chamber device and is rotationally driven by a lug-pin device. The rotating wafer carrier rotor is restrained by a set of idlers that are attached to a stationary housing to provide rigid support against abrading forces. The abrading system can be operated at the very high abrading speeds used in high speed flat lapping with raised-island abrasive disks. The range of abrading pressures is large and the device can provide a wide range of torque to rotate the workholder. Vacuum can also be applied to the elastomer chamber to quickly move the wafer away from the abrading surface. Internal constraints limit the axial, lateral and circumferential motion of the workholder. Wafers can be quickly attached to the workpiece carrier with vacuum.



Blasting method and apparatus having abrasive recovery system, processing method of thin-film solar cell panel, and thin-film solar cell panel processed by the method

Tue, 26 May 2015 08:00:00 EDT

Particularly, a thin-film solar cell panel or the like is processed without necessity of attaching and detaching of mask and washing steps with respect to a workpiece in a fine blasting employing a fine abrasive. A negative pressure space (20) and an opposing negative pressure space (40) having openings (22, 42) are opposed by being spaced at a movement allowable interval of the workpiece such as a thin-film solar cell panel or the like and so as to face one side edge in the same direction as a moving direction of the workpiece. Further, a fine abrasive is injected while relatively moving the workpiece in a moving direction (T) with respect to a blast gun (30) in which an injection hole (31) is disposed within the negative pressure space (20), and the fine abrasive injected into the negative pressure space (20) and/or the opposing negative pressure space (40) and a cut and removed cut scrap such as a thin film layer or the like are sucked and recovered through the intermediary of suction devices (21a, 21b) and/or an opposing suction device (41) respectively communicating with the spaces (20) and/or (40).



Texturing of a storage cell for reduced friction retention of a data storage cartridge

Tue, 26 May 2015 08:00:00 EDT

Described are embodiments of an invention for a method and a tool to produce a textured surface on the retention tab of a storage cell. The tool has a form that fits within the storage cell. The form has a hard material with a hard surface with contacts a surface of the retention tab within the storage cell. The movement of the hard surface across the surface of the retention tab produces a textured surface on the retention tab. The textured interface between a notch of a data storage cartridge and a retention tab of a storage cell provides a consistent and low friction force that retains the data storage cartridge within the cell but allows the accessor to easily remove the data storage cartridge when needed.



Method for machining a series of workpieces by means of at least one machining jet

Tue, 26 May 2015 08:00:00 EDT

The method for machining a series of workpieces (21) via at least one machining jet includes the following steps: each workpiece (21) is associated with an identifier for uniquely identifying the workpiece,during the machining of a respective workpiece, the temporal characteristic of the machining jet is detected by at least one sensor (30),the detected temporal characteristic is evaluated so as to obtain at least one comparative value, andfor detecting incorrect machining, the at least one comparative value is compared with at least one threshold value.



Steady rest

Tue, 26 May 2015 08:00:00 EDT

A steady rest for centering a rotationally symmetrical workpiece in a space comprises: two housing halves arranged at a distance from one another and connected together, a plate-shaped middle piece arranged between the two housing halves, the middle piece mounted in the housing halves by means of an actuator piston so it can be moved in an axial movement direction to the workpiece, two linear guide grooves disposed in both opposite end faces of the middle piece, with the linear guide grooves running in a cross-shaped arrangement and at an angle to the movement direction of the middle piece, two outer steady rest arms, each of which has its free ends mounted in each of the linear guide grooves of the middle piece in a movable arrangement, and a middle steady rest arm attached to the middle piece between the outer steady rest arms.



Surface preparation for a microfluidic channel

Tue, 19 May 2015 08:00:00 EDT

A microfluidic cartridge having a microfluidic channel may have at least one surface that has been roughened, etched or otherwise treated to alter its surface characteristics. In some instances, a microfluidic cartridge may have a microfluidic channel that is configured to provide even distribution of a lysing reagent across the channel. The surface may be roughened or etched using a laser, an abrasive, application of a solvent or in any other suitable manner.



Knife sharpener

Tue, 19 May 2015 08:00:00 EDT

A knife sharpener having an angled bolster for providing predetermined sharpening angles with respect to the sharpening surface is provided. The angled bolster of the knife sharpener preferably includes two different angled surfaces for establishing at least two different predetermined sharpening angles for a cutting implement to be sharpened. The angled bolster is configured to set up the knife sharpening angle at predetermined angles with respect to the sharpening surface.



Combined processing tool

Tue, 19 May 2015 08:00:00 EDT

A combined processing tool includes a shank of a cylindrical shape, a mandrel fixed to the shank, a frame rotation-universally fitted outside the mandrel, a burnishing unit for performing a burnishing to an inner peripheral surface of a workpiece by rolling members, a dimple forming unit for performing a dimple forming to the surface of the workpiece by surface compression members so as to universally appear from and disappear in the frame, a body fixed to a top portion of the shank, and a skiving unit for performing a cutting, wherein, on an outer peripheral region of the mandrel, an outer peripheral surface 31c and a concave and convex shape area which consists of concave parts and convex parts alternately arranged along an outer peripheral direction of the mandrel are formed, and wherein the concave and convex parts are alternately engaged in the compression members with being rotated.



Dust collecting attachment for electric power tool and electric power tool

Tue, 19 May 2015 08:00:00 EDT

A dust collecting attachment that is mounted on a sander includes a suction portion mounted on a portion of a front housing where an output shaft projects, a flexible hose having a front end of the flexible hose connected to the suction portion, a discharge portion connected to a rear end of the flexible hose and a changeable member placed on both a motor housing and the discharge portion. The changeable member allows the discharge portion to be mounted at any position around an axis of the motor housing.



Method and device for machining shafts

Tue, 19 May 2015 08:00:00 EDT

The invention relates to a device (1) for machining a stepped shaft (2), having a workpiece rest (6); having a disk arrangement (3) which has a grinding disk (4) and a control disk (5); and having an axial stop arrangement (7), wherein the axial stop arrangement (7) has a contact adapter (8) which can be temporarily placed in contact with an end surface portion (9) of the shaft (2) and which has a punctiform contact surface (10) for contact against a stop part (11) of the stop arrangement (7).



Run-off securing device

Tue, 19 May 2015 08:00:00 EDT

A run-off securing device, in particular a run-off securing device of a handheld power tool, is configured to avoid running off of a clamping element and/or a tool from a spindle. The device has at least one transmission unit, which is removably coupled to the spindle and has at least one first transmission element and at least one second transmission element. The at least one second transmission element is movable in relation to the at least one first transmission element. The transmission unit has at least one movement changing unit, which at least partially transforms a first relative movement between the at least one first transmission element and the at least one second transmission element into a second relative movement in a braking mode.



Tool for selective honing of a cylinders outer-diameter

Tue, 19 May 2015 08:00:00 EDT

A tool is disclosed for selective honing of the outer diameter of a cylinder using an abrasive belt in semi-circular contact upon the outer-diameter of a cylindrical work-piece to perform a similar function to honing the inner-diameter of a hollow cylinder. The belt is retained within the tool body by U-shaped restraint arms, and a slot in the tool body. A clamp block retains the ends of the belt which exit the slot. Springs on the arms, and contact of the block on the outside of the tool body, force the belt into a triangular shape inside the body. A cylindrical work-piece inserted within the triangular shaped belt causes the belt to deform into three semi-circular areas of contact between the belt and work-piece. When the work-piece is rotated, the belt abrades material from the work-piece.



Coated abrasive article and methods of ablating coated abrasive articles

Tue, 19 May 2015 08:00:00 EDT

A coated abrasive article comprises an abrasive layer secured to a backing. The abrasive layer comprises abrasive particles secured by at least one binder to a first major surface of the backing. A supersize is disposed on at least a portion of the abrasive layer. The coated abrasive article has a melt flow zone adjacent to an edge of the coated abrasive article, wherein the melt flow zone has a maximum width of less than 100 micrometers, and the melt flow zone has a maximum height of less than 40 micrometers. Methods of using infrared lasers to ablate coated abrasive articles are also disclosed, wherein a laser wavelength is matched to a component of the coated abrasive article.



Method of polishing object to be polished

Tue, 19 May 2015 08:00:00 EDT

The present invention provides: a method of polishing an object to be polished for processing a surface of the object to be polished into a concave or convex state with a high degree of accuracy; and a polishing pad. An object to be polished is placed on a polishing pad over the boundary between the first polishing region and the second polishing region, the first polishing region has grooves and the second polishing region has grooves different from those of the first polishing region, and either one of the two regions being formed on a region on the center side, and the other on the outer side in a radial direction on the surface of the polishing pad; and the object to be polished is polished by rotating the polishing pad and the object to be polished.



Deburring device

Tue, 19 May 2015 08:00:00 EDT

A deburring device includes a barrel with a granulated polishing member filled therein. The barrel is configured by a case formed with an opening hole, and drop prevention member which is fixed to the case and prevents the polishing member from being dropped from the opening hole. A gap into which a tubular end section of a workpiece is inserted is formed between the opening hole of the case and the drop prevention member.



Method and device for preventing slip of work piece

Tue, 19 May 2015 08:00:00 EDT

A master servo motor and a slave servo motor that synchronously drive for rotation a master main spindle provided with a center that supports one end of a work piece and a slave main spindle provided with a center that supports the other end of the work piece are included. Before grinding, a slip detection cycle that detects a limit current value for the servo motors, at which the work piece and the centers slip, is executed and, during grinding, a grinding condition is changed to prevent a slip between the work piece and the centers in advance at the time when any one of current values of the servo motors has reached a slip threshold value set on the basis of the limit current value.



Bevel gear manufacture with face cutters without swing axis motion

Tue, 19 May 2015 08:00:00 EDT

A method of machining bevel gears whereby machining of both flanks of a tooth slot and crowning of the tooth surfaces in the lengthwise direction are realized without an active pivot axis and by a modification of the conventional relationship between the radial and swivel basic settings during gear generating.



Method for mechanically scraping boards, apparatus for same, and products made therewith

Tue, 19 May 2015 08:00:00 EDT

Methods are described for mechanically scraping surfaces of boards, such as flooring boards, to impart random-looking scraped profiles therein. An apparatus for mechanically scraping boards to form the scraped board products also is described. A board, such as a flooring board, having a random-looking scraped appearance that includes overlapping multiple scrape patterns is described. Boards, such as flooring boards, having a simulated rustic or distressed appearance made with the methods and apparatus also are described.



Green ball grinding method, ceramic sphere fabrication method, and grinding apparatus

Tue, 19 May 2015 08:00:00 EDT

A green ball grinding method includes the step of supplying a green ball between a first surface of a first member and a second surface of a second member constituting a grinding apparatus, and the step of grinding the green ball between the first surface and the second surface while the green ball rotates around its own axis and in orbital motion. In the step of grinding the green ball, the step of causing the green ball grinding to proceed while applying load between the green ball and each of the first surface and the second surface, and the step of modifying the rotation axis of the green ball by reducing the load lower than in the step of causing the green ball grinding to proceed are executed alternately.



Method for making circuit board

Tue, 19 May 2015 08:00:00 EDT

A method for making a circuit board includes separating a plurality of versatile circuit boards from a collective board by cutting a connecting portion of the collective board, the plurality of versatile circuit boards being connected each other via the connecting portion, and cutting a part of a wiring formed on each of the plurality of versatile circuit boards to produce the circuit board. The cutting of the part of the wiring is conducted within the separating of the plurality of versatile circuit boards.



Measuring assembly for measuring a spectacle frame

Tue, 12 May 2015 08:00:00 EDT

A measuring assembly for measuring an inside of a lens frame of a spectacle frame, said lens frame at least partially delimiting an inscribed surface area F that corresponds to a lens shape, comprising a holding device for mounting the spectacle frame, at least one light source for generating a light beam to be projected on a region of the lens frame to be evaluated, and at least one sensor that can be coupled to an evaluation unit for detecting the reflected light beam, wherein the holding device can be rotated about a rotational axis r and moved in the direction of a movement axis x, and the movement axis x comprises at least one movement component in a direction perpendicular to the rotational axis r. The holding device is used to fix the spectacle frame by spectacle frame bows, wherein at least one free space is provided in the region of the holding device, said free space being used to receive the spectacle frame bows of a spectacle frame to be held which are not folded in or cannot be folded in.



Abrasive article for shaping of industrial materials

Tue, 12 May 2015 08:00:00 EDT

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.



Polishing pad for eddy current end-point detection

Tue, 12 May 2015 08:00:00 EDT

Polishing pads for polishing semiconductor substrates using eddy current end-point detection are described. Methods of fabricating polishing pads for polishing semiconductor substrates using eddy current end-point detection are also described.



Holding body for flexible grinding device and grinding system

Tue, 12 May 2015 08:00:00 EDT

A holding body includes a fastening layer which has a fastening surface configured to fasten a flexible grinding device. The fastening layer includes an air- and dust-permeable material and is substantially full-surface. The fastening layer includes a textile material. The holding body also includes a supporting body which has a supporting surface configured to support a holding surface of the fastening layer. The supporting body is air- and dust-permeable and includes an open-cell foam. A grinding system includes such a holding body and such a flexible grinding device.



Grinding tool adapted to collect grinding particles

Tue, 12 May 2015 08:00:00 EDT

Disclosed is a grinding tool, which includes a first disk having an installation hole in a center portion thereof such that the grinding tool is installed on a grinder, a second disk forming a discharge passage with partitions on a bottom surface of the first disk, wherein air intaken from a central lower portion of the grinding tool is discharged to an outside thereof through the discharge passage, and a ring-shaped shank disposed under the second disk and including grinding tips to grind a target.



Fully symmetric cutter grinding machine with 5-axis and grinding wheel head bracket thereof

Tue, 12 May 2015 08:00:00 EDT

A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.



Pressurized dual fluid jet system

Tue, 12 May 2015 08:00:00 EDT

A dual capability ultra high pressure (UHP) fire attack system includes a fluid jet assembly and an UHP attack line system. The fluid jet assembly and the UHP attack line system are coupled to a high pressure fluid source. The fluid is discharged from both the fluid jet assembly and the UHP attack line system as a mist having a droplet diameter of approximately 150 microns. When infused with an abrasive material, the fluid jet assembly may be used to cut through structural surfaces, so that a fire may be “knocked down” before the fuel source is attacked.



Polishing apparatus

Tue, 12 May 2015 08:00:00 EDT

The present invention relates to a polishing apparatus for polishing an object to be polished (substrate) such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing table configured to support a polishing pad, a polishing head having a top ring configured to press an object to be polished against the polishing pad while the object to be polished is rotated, and a dresser head having a dresser configured to dress the polishing pad. The polishing apparatus has a head cover having a purge gas introducing unit configured to introduce a purge gas into the head cover and an exhausting unit configured to exhaust the interior of the head cover. The pressure in the head cover is set to a pressure level slightly higher than the pressure outside the head cover, and main components of the polishing head are housed in the head cover.



Glass sheets and methods of shaping glass sheets

Tue, 12 May 2015 08:00:00 EDT

Methods of shaping a glass sheet each include a step of removing a first portion of the glass sheet to form a first beveled surface. The methods further include the step of removing a second portion of the glass sheet to form a second beveled surface. The methods still further include the step of removing a third portion of the glass sheet comprising a remainder of an end surface of an edge portion of the glass sheet. In further examples, glass sheets are also provided with a first bevel surface intersecting a first glass-sheet surface and an apex surface, and a second bevel surface intersecting a second glass-sheet surface and the apex surface. The glass sheet exhibits a probability of failure of less than 5% at an edge stress of 135 MPa.



Reel mower grinder with auto-index mechanism

Tue, 12 May 2015 08:00:00 EDT

A grinder for sharpening the blades of reel mowers automatically to grind the underside of the blade of the reel mower.



Apparatus and method for monitoring glass plate polishing state

Tue, 12 May 2015 08:00:00 EDT

Disclosed are an apparatus and a method for monitoring a glass plate polishing state. The apparatus may include a location measuring unit for measuring a location on a glass plate being polished by a polishing machine, a current measuring unit for measuring an electric current flowing into the polishing machine, a memory unit for storing a reference value of the electric current flowing into the polishing machine for each polishing location of the glass plate, and a control unit for determining whether a polishing state is faulty, by comparing a value of the electric current measured by the current measuring unit for each polishing location measured by the location measuring unit with a corresponding reference value of the electric current stored in the memory unit for each polishing location.



Apparatus for internally restoring a pipe

Tue, 12 May 2015 08:00:00 EDT

A method of internally restoring a pipe preferably includes the steps of isolating a leaking pipe from a system of pipes; drying an interior of a leaking pipe; measuring the airflow through the leak; cleaning the interior of the leaking pipe; presealing a leak with a leak sealing media, measuring the leak flow rate after the pre-sealing; applying an internal protective coating process; and pressure testing the leaking pipe for leaks. The pipe restoration method preferably uses a control box, a media injection system, an air compressor and a coating dispensing system at an inlet of the leaking pipe. The pipe restoration method preferably uses a coating overflow receiver, a muffler and a dust collector at an exit of the leaking pipe. After the treatments, the leaking pipe becomes a restored pipe. The restored pipe is pressure tested for leaks at a working pressure rating of the pipe.



High sensitivity eddy current monitoring system

Tue, 05 May 2015 08:00:00 EDT

A method of chemical mechanical polishing a substrate includes polishing a metal layer on the substrate at a polishing station, monitoring thickness of the metal layer during polishing at the polishing station with an eddy current monitoring system, and controlling pressures applied by a carrier head to the substrate during polishing of the metal layer at the polishing station based on thickness measurements of the metal layer from the eddy current monitoring system to reduce differences between an expected thickness profile of the metal layer and a target profile, wherein the metal layer has a resistivity greater than 700 ohm Angstroms.



Abrasive tool for use as a chemical mechanical planarization pad conditioner

Tue, 05 May 2015 08:00:00 EDT

An abrasive tool including a CMP pad conditioner having a substrate including a first major surface, a second major surface opposite the first major surface, and a side surface extending between the first major surface and the second major, wherein a first layer of abrasive grains is attached to the first major surface and a second layer of abrasive grains is attached to the second major surface. The conditioner further includes a first sealing member extending in a peripheral direction along a portion of the side surface of the substrate.



Dart tip restoration tool

Tue, 05 May 2015 08:00:00 EDT

A dart restoration tool includes a stator having a conical milling surface and a rotor mounted for rotation about a longitudinal axis of the stator. The rotor includes a guide adapted to accept a tip end portion of a game dart such that the tip end portion engages the conical milling surface. Rotation of the rotor about the longitudinal axis produces an orbital motion of the game dart against the conical milling surface to sharpen the tip end portion of the game dart.



Assembly for grinding electrodes

Tue, 05 May 2015 08:00:00 EDT

A device for processing welding electrodes with a grinding surface driven by a driving motor with a shaft, which faces the motor and runs in a housing, wherein at least one opening is provided in the housing for guiding a welding electrode for grinding in a defined position relative to the grinding wheel. The housing is releasably fixed to a motor flange for bearing the shaft, and the grinding wheel is arranged on a side of the motor flange which is remote from the motor. The motor flange is formed by a sleeve, which is adapted to be stuck onto the housing in such a way, that at least one opening extends from the circumference of the housing towards the grinding surface facing the motor.



Honing machine for inner honing and outer honing

Tue, 05 May 2015 08:00:00 EDT

A honing machine has at least one clamping unit that clamps a workpiece and has a rotary drive for the workpiece. A spindle unit has a stroke drive for an inner honing tool for inner honing of the workpiece. An outer honing device that is movable relative to the workpiece in an axial direction of the workpiece is provided. The outer honing device has several honing stones and an advancing device acting on the honing stones. The honing stones each are advanced in a radial direction relative to the workpiece. The advancing device has at least one linear drive for each one of the honing stones and a common drive motor for all of the linear drives.



Dressing device for a grinding wheel and its use in a centreless nuclear fuel pellet grinder

Tue, 05 May 2015 08:00:00 EDT

The invention relates to a device for dressing a grinding wheel, comprising a sleeve to hold a corundum rod laterally and to guide it along its longitudinal axis, a ram to apply constant thrust force onto the corundum rod held in place and guided in the sleeve, to bring it into contact with the grinding wheel, means of rigidly connecting the ram shaft to the end of the corundum rod, and linear guide means for the sleeve for translating the corundum rod parallel to the axis of the grinding wheel while keeping the rod pressed against the grinding wheel with a constant force. Application to a centerless grinder in which the grinding wheel is used to grind nuclear fuel pellets.



Mobile abrasive blasting material separation device and method

Tue, 05 May 2015 08:00:00 EDT

The process and apparatus for mobile separation and recovery of used contaminants abrasive blasting material from a work site. Entrained contaminants within used blast material are removed by a self-contained mobile platform process using multiple stage cleaning system including dual cyclonic separation, multiple stage dust filters with large debris magnetic drum, airwash and vibratory separation in a flow through containment and blast media separation process.



Polishing solution for CMP and polishing method using the polishing solution

Tue, 05 May 2015 08:00:00 EDT

The polishing solution for CMP according to the invention comprises abrasive grains, an additive and water, and the polishing solution comprises an organic compound satisfying specified conditions as the additive. The polishing method of the invention is for polishing of a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.



Fiber optic connector fiber stub remover and method

Tue, 05 May 2015 08:00:00 EDT

A fiber optic connector fiber stub remover and method for automated fiber stub removal. The device has a top plate with a platen opening, and a platen with a well that carries a polishing film over the well. An air pocket is formed between the polishing film and the well. The platen is positioned with a top surface of the polishing film accessible via the platen opening. A fixture holds connector ends of fiber optic cables with fiber stubs extending therefrom, and a weight biases the fiber stubs into contact with the polishing film. A motor is controlled by a motor control unit to control a ramp up time and final speed of movement of the platen over a timespan. Each connector ends moves independently relative to the polishing film. The air pocket provides shock absorption of the polishing film so that an ideal pressure is exerted on each fiber stub during stub removal.



Polishing pad and production method therefor, and production method for semiconductor device

Tue, 28 Apr 2015 08:00:00 EDT

A polishing pad, having a polishing layer comprising a thermoset polyurethane foam, wherein the polishing layer has an in-plane variation of 12 or less in microrubber A hardness, the variation being obtained by measuring the polishing layer from a polishing surface side of the layer, the thermoset polyurethane foam contains, as raw material components, an isocyanate component and active-hydrogen-containing compounds, and the active-hydrogen-containing compounds comprise a trifunctional polyol having at least one terminated hydroxyl group that is a secondary hydroxyl group, and having a hydroxyl group value of 150 to 1,000 mg KOH/g in an amount of 10 to 50 parts by weight for 100 parts by weight of the active-hydrogen-containing compounds.