Abstract: A tubular shear assembly for use with a subterranean well can include a tubular shear device configured to shear a tubular string that extends into the well. The tubular shear device can include a body, a fixed shear jaw, and a rotary shear jaw configured to rotate relative to the body and the fixed shear jaw to shear the tubular string. A method of retrieving a tubular string from a subterranean well can include displacing a tubular shear device, including positioning the tubular string between a fixed shear jaw of the tubular shear device and a rotary shear jaw of the tubular shear device, and rotating the rotary shear jaw relative to the fixed shear jaw, thereby shearing the tubular string.

Abstract: The subject matter relates to a drywall bead press that is able to cut drywall at various angles. The anvil anchors the device to the dry wall, allowing the handle to be rotated to the desired angle. Once the desired angle has been chosen, the upper handle mechanically forces the blade into the drywall.

Abstract: A sawing machine includes a base, a pivot mount connected with the base, a support post rotatably connected with the pivot mount, a rocker arm pivotally connected with the support post, a saw blade rotatably mounted to the rocker arm, and a bevel angle control mechanism including a control handle pivotally disposed with a front side of the base and rotatable at different angles, a pull rod unit, a positioning pin unit, a positioning turntable, and a retaining block. With the collaboration among the control handle, the pull rod unit, the positioning pin unit, the positioning turntable, and the retaining block, a three-stage adjustment functions of locking, unlocking, and disengaging at specific angles can be achieved.

Abstract: A handheld band saw includes a housing, a handle supported by the housing and configured to be grasped by a user during a cutting operation, and a motor supported by the housing. The band saw further includes a drive wheel assembly that is at least partially disposed within the housing and a saw blade driven by the drive wheel assembly. The band saw further includes a drive assembly positioned between the motor and the drive wheel assembly. The drive assembly is configured to transfer torque from the motor to the drive wheel assembly, causing the drive wheel assembly and the saw blade to rotate. The drive wheel assembly includes a wheel having a recess in which a portion of the drive assembly is received to shorten an overall length of the motor, drive assembly, and drive wheel assembly.

Abstract: A sawing machine includes a worktable on which a workpiece is fixed, a rocker arm pivotally connected with the worktable, and a saw blade rotatably mounted to the rocker arm. The rocker arm includes a chip collection tube. A workpiece position detecting member and a chip guiding member are movably connected with the rocker arm by a connecting rod set in a way that the workpiece position detecting member is moveable by the workpiece, and the chip guiding member is in communication with the chip collection tube and moveable along with the workpiece position detecting member to a position adjacent to a top surface of the workpiece. As such, the sawing machine effectively collects chips generated during the sawing process of the workpieces having different thicknesses.

Abstract: The method for manufacturing a substantially rectangular parallelepiped tip 1 includes using an upper punch 25 for pressing a sand-like tip-forming metal material SM from above, a lower punch 26 for pressing the tip-forming metal material SM from below, and a mortar die 21 into which the tip-forming metal material SM is injected, making a lower surface 25a of the upper punch 25 into a forming surface of a rake face 2 side portion of the tip 1, making an upper surface 26a of the lower punch 26 into a forming surface of an opposite side surface 11 portion of the rake face 2 of the tip 1, and making one side inner surface 24a of the cavity 24 of the mortar die 21 into a forming surface of a flank 5 portion of the tip 1.

Abstract: A method of making a tool having a joining a maraging steel joining partner and a cemented carbide joining partner by brazing and a tool made according to the method is provided. The method includes depositing a Ni coating onto the maraging steel joining partner prior to applying the filler material having at least 70 wt % Cu. The braze joint shows excellent shear strength.

Abstract: A brazing system according to an embodiment of the present invention, which is for brazing an object to be bonded to a base material, comprises: a turntable provided with a reception part for receiving the base material and rotatable clockwise or counterclockwise; a base material supply device for supplying the base material to the reception part; a brazing filler metal supply device for supplying a brazing filler metal to an upper side of the base material; a first heating device for bonding the brazing filler metal to the base material; a bonding object supply device for supplying the object to be bonded to an upper side of the brazing filler metal bonded to the base material; a second heating device which is in contact with opposite sides of the base material to fix the base material and is provided with electrodes for supplying electric current to the base material so as to bond the object to be bonded to the base material; and a cooling device which comes into contact with the object to be bonded to cool

Abstract: A cooling module, according to an embodiment of the present disclosure, for cooling an object to be brazed comprises: a body part having a contact part in contact with the object to be brazed, and cooling the object to be brazed; a first nipple connected to one side of the body part, and having a first supply flow path for receiving fluid from the outside; and a second nipple connected to the other side of the body part, and having a first discharge flow path for discharging the fluid to the outside, wherein the body part includes: a second supply flow path formed inside the body part so as to be connected to the first supply flow path; a second discharge flow path formed inside the body part so as to be connected to the first discharge flow path; and a connection flow path positioned to be adjacent to the contact part of the body part, and connecting the second supply flow path and the second discharge flow path.

Abstract: Described herein are examples of welding technique monitoring systems that provide lightweight, self-contained, and highly portable means of monitoring welding technique and/or providing technique feedback. The systems use a portable support platform that can be easily transported to different welding stations/sites, providing a marked advantage over legacy monitoring systems that use heavy welding stands that are difficult to move. After an initial calibration, the systems can consistently and repeatedly monitor welding technique relative to a particular joint with no additional calibration necessary, even if there is sensor and/or platform movement. The systems are additionally able to detect a welding-type operation without the need to communicate with welding equipment. The systems are further configured for use with existing (rather than potentially expensive custom) welding-type tools, thereby keeping the systems low cost and highly portable.

Abstract: A welding-type power system than includes a power supply, a DC power bus, an energy storage device, and a bi-directional converter. The bi-directional converter configured to connect the DC power bus to the energy storage device, and further configured to convert power from the DC power bus to the energy storage device to charge the energy storage device, and to convert power from the energy storage device to the DC power bus in response to a power demand on the DC power bus. The bi-directional converter further configured to balance the DC power bus. A controller is configured to control the duty cycle of the bi-directional converter in order to balance the DC power bus, and control the flow of power between the energy storage device and the DC power bus.

Abstract: A stainless steel and copper joined body is provided. A fillet welded lap joint that is a joined portion of stainless steel and copper is formed at an end of the copper. The Cu/Fe ratio of the fillet welded lap joint is 2.3 or more. The fillet welded lap joint includes multiple welding points that are continuous in the welding direction. The average diameter Dmean (mm) of the welding points and the copper thickness (mm) satisfy the relationship of the following Formula (1). The overlap ratio OR of welding points is 10% or more and 80% or less. 2 ? t 0.5 ? D mean ? 10 ? t 0.

Abstract: A resistance spot welded member and a resistance spot welding method. The resistance spot welded member includes a resistance spot weld formed by resistance-spot-welding a plurality of steel sheets including at least one high strength coated steel sheet. The high strength coated steel sheet has a specific chemical composition. The at least one high strength coated steel sheet includes a coated layer, a base metal, and an Fe-based electroplated base layer interposed between the coated layer and the base metal. The amount of solute Si and the amount of solute Mn in a region on a steel sheet surface in the vicinity of the edge of the corona of the resistance spot weld are 35% or less of the amount of solute Si and 35% or less of the amount of solute Mn, respectively, at a position ¼ of the sheet thickness.

Abstract: An adaptive guide bushing for laser workpiece cutting systems, the adaptive guide bushing including an clastic member that expands and contracts to hold a workpiece within a central opening for laser cutting.

Abstract: A beam cutting method includes conducting at least one cutting procedure while capturing at least one quality parameter. The at least one cutting procedure is intermittently implemented with an operation not subject to a closed-loop control and intermittently implemented with an operation subject to the closed-loop control. The beam cutting method further includes defining a process window in a parameter space of at least one process parameter, and choosing the at least one process parameter within the process window during the operation not subject to the closed-loop control. The at least one process parameter is allowed to be outside of the process window during the operation subject to the closed-loop control. The beam cutting method further includes adapting the process window based on changes in the at least one process parameter during the operation subject to the closed-loop control and/or changes in the at least one quality parameter.

Abstract: Systems and methods are disclosed that address the problem of large-scale optical manufacturing of microstructures. The systems and methods utilize one or more optical processing systems to generate a first set of alignment marks in a first region on a surface. The optical processing systems then move their focus to a second region on the surface. The second region generally partially overlaps the first region such that the optical processing systems can detect the location of the first set of alignment marks. The optical processing systems then generate a second set of alignment marks based on the location of the first set of alignment marks. This process is repeated in an iterative manner until alignment marks have been generated on all regions of the surface. The alignment marks can be used to optically align one or more optical processing systems configured to produce 3D structures on the surface.

Abstract: An apparatus for manufacturing a display device includes: a light source for generating a first beam; a beam converter including an axicon lens for converting the first beam into a second beam and a relay lens for converting the second beam into a third beam; a scanner including a first mirror for reflecting the third beam in a first direction and a second mirror for reflecting the third beam in a second direction different from the first direction; and a scan lens having an effective focal length and being for converting the third beam output from the scanner into a fourth beam. The scan lens including first through fifth lens respectively having first through fifth focal lengths and a cover window. An absolute value of the first focal length is smaller than an absolute value of each of the second through fifth focal lengths.

Abstract: A welding optical unit for shaping a processing beam of a processing head of a welding apparatus includes a collimation lens, a focusing lens, and a beamforming insert for forming one or more spots of the processing beam on at least one workpiece to be processed. The beamforming insert has a base face and one or more side faces lying opposite the base face, which converge at a common point or in a common plateau of the beamforming insert.

Abstract: Systems and methods for laser welding are disclosed. A laser welding system includes a hand held laser welding tool to direct laser power to a workpiece to generate a weld during a laser welding operation. The welding system includes a controller to regulate activation and regulation of the laser power based on user inputs, sensor inputs, and/or synergic control of a laser power system.

Abstract: A laser welding method is disclosed including butting Si-containing steel sheets and irradiating a gap between the butted steel sheets with a laser beam while feeding a filler wire to the gap thereby melting and solidifying the filler wire and the butted steel sheets to form a weld metal, and thus joining the butted steel sheets together, in which an austenitic wire is used as the filler wire, the width of the gap is set to 0.30 mm or more, and the amount of the filler wire fed to the gap per unit welding length is set within the range of 1.5 to 2.5 times the volume of the gap per unit length, so that a weld metal with an austenite structure is stably obtained. Preferably, the base metal dilution ratio of the weld metal is set to 70% or less.

Abstract: A method of welding two metal sheets includes providing a first sheet having a first weld surface and a second sheet having a second weld surface. The first sheet has a zinc coating on the first weld surface. The method further includes arranging the first and the second weld surfaces such that the first and the second weld surfaces face each other with a gap therebetween, and irradiating the first and the second weld surfaces with a laser beam. The laser beam is moved with a wobbling motion in a feed direction along an imaginary feed line and perpendicular to the imaginary feed line. A path of the laser beam along the imaginary feed line is of a periodic shape. A width of the path perpendicular to the imaginary feed line is greater than a length of a period of the path along the imaginary feed line.

Abstract: A distributor plate for a fluid treatment tank such as a water softener pressure vessel separates the resin bed from a lower end of the resin tank. The outer peripheral surface of the distributor plate is laser-welded to an inner peripheral surface of the tank. The outer peripheral surface of the distributor plate may have a biasing mechanism that biases the outer peripheral surface of the distributor plate against the inner peripheral surface of the tank. The biasing mechanism may include a plurality of peripherally-spaced resilient fingers extending axially and radially away from a circular base of an outer ring of the distributor plate into engagement with the inner peripheral surface of the tank liner, each of the fingers having a base connected to the base of the ring and having a free end. Also disclosed is a method of making a fluid treatment tank.

Abstract: Systems and methods for laser welding are disclosed. A laser welding system includes a hand held laser welding tool to direct laser power to a workpiece to generate a weld during a laser welding operation. The welding system includes a controller to regulate activation and regulation of the laser power based on user inputs, sensor inputs, and/or synergic control of a laser power source.

Abstract: A method of welding two metal sheets includes providing a first sheet having a first weld surface and a second sheet having a second weld surface. The first sheet has a coating includes an alloy of aluminum and silicon on the first weld surface. The method further includes irradiating the first weld surface and the second weld surface with a laser beam. The laser beam has an inner core and an outer ring with different intensity profiles. The laser beam is moved with a wobbling motion in a feed direction along an imaginary feed line and perpendicular to the imaginary feed line. A path of the laser beam along the imaginary feed line is of a periodic shape. A width of the path perpendicular to the imaginary feed line is greater than a length of a period of the path along the imaginary feed line.

Abstract: A processing apparatus includes a controller configured to control an operation of forming condensing points in a processing target object. In forming the condensing points by radiating a laser light to an inside of the processing target object periodically from a modifying device while rotating the processing target object held by a holder relative to the modifying device by a rotating mechanism and, also, by moving the modifying device in a diametrical direction relative to the holder by a moving mechanism, the controller controls a number and an arrangement of the condensing points, which are simultaneously formed at different positions in a plane direction of the processing target object, based on a relative rotation number of the processing target object and a radiation pitch of the laser light.

Abstract: A method of producing a microstructured component includes a multiplicity of micro-functional elements on a substrate that carries an array of pixel-forming micro-light-emitting diodes on an electrical supply structure, including laser processing in at least one method stage in a laser processing station under control of a control unit, the method stage including positioning a workpiece to be processed in a processing position of the laser processing station by a workpiece movement system in reaction to movement signals of the control unit, the method including: observing the workpiece in a camera-based manner by a camera system, the observing including capturing at least one portion of the workpiece lying in the object field of a camera and also generating an image representing the portion; evaluating the image by image processing to ascertain position data representing an actual position of at least one structural element of the workpiece in the object field.

Abstract: The present disclosure is related to a method of welding a component, such as a fastener, with a base metal. The method includes the step of stud welding a component with a base metal to create at least one weld joint using at least one electrode. The method continues with the steps of emitting ultrasonic waves from an ultrasonic sensor on an electrode and receiving reflections of those ultrasonic waves with the ultrasonic sensor. The method proceeds with the step of generating an acoustic map based on the reflections of the ultrasonic waves. The method continues with the step of analyzing the acoustic map to determine a quality of the at least one weld joint.

Abstract: The disclosed embodiments relate to the monitoring and control of additive manufacturing. In particular, a method is shown for removing errors inherent in thermal measurement equipment so that the presence of errors in a product build operation can be identified and acted upon with greater precision. Instead of monitoring a grid of discrete locations on the build plane with a temperature sensor, the intensity, duration and in some cases position of each scan is recorded in order to characterize one or more build operations.

Abstract: Solder particles containing an oxidized film on the surface thereof, wherein the average film thickness of the oxidized film is 3 nm or greater, and the average surface roughness Ra of the solder particles is 10 nm or greater are provided.

Abstract: Described herein are examples of welding technique monitoring systems that provide lightweight, self-contained, and highly portable means of monitoring welding technique and/or providing technique feedback. The systems use a portable support platform that can be easily transported to different welding stations/sites, providing a marked advantage over legacy monitoring systems that use heavy welding stands that are difficult to move. After an initial calibration, the systems can consistently and repeatedly monitor welding technique relative to a particular joint with no additional calibration necessary, even if there is sensor and/or platform movement. The systems are additionally able to detect a welding-type operation without the need to communicate with welding equipment. The systems are further configured for use with existing (rather than potentially expensive custom) welding-type tools, thereby keeping the systems low cost and highly portable.

Abstract: A system for processing elements, including a supply device, a processing device and a hollow transport line. The supply device and the processing device are connected via the hollow transfer line. The processing device processes elements, and the supply device supplies elements to the hollow transfer line so that the elements are transferred to the processing device via the hollow transfer line in order to supply the processing device with the elements. A pneumatically operated system component is provided to operate the system. The system includes a gas compressor unit for providing compressed and/or accelerated pressurised air. The gas compressor unit is in an installation space that accommodates the system. The gas compressor unit takes air in from the environment of the processing device and/or from the environment of the supply device in the installation space and provides compressed and/or accelerated pressurised air for the pneumatically operated system component.

Abstract: A pressing apparatus for an electronic cigarette cartridge decorative ring is disclosed, including a controller and a supporting seat. The supporting seat is provided with a clamping fixture, the clamping fixture is provided with cartridge placing holes, decorative ring placing grooves are provided in peripheries of upper ends of the cartridge placing holes, and a central axis of the cartridge placing holes coincides with that of the decorative ring placing grooves. The supporting seat is provided with a pressing mechanism, the pressing mechanism includes driving pieces and pressing heads, the driving pieces are connected to the supporting seat and connected with the controller, the pressing heads are connected to output ends of the driving pieces and limited at positions right above the cartridge placing holes, and the driving pieces can drive the pressing heads to lift up and down.

Abstract: The present invention relates to a multi jackbolt tensioner and methods of using the same. The present invention alleviates some of the problems associated with presently available multi jackbolt tensioners.

Abstract: A tool cartridge for supporting tool parts, in particular a multi-part machining tool for a punching and/or forming apparatus, comprises a base body, a first supporting means attached to the base body for reversibly detachably receiving a first tool part, and a second supporting means attached to the base body for reversibly detachably receiving a second tool part, wherein the base body is formed in two parts, wherein a first supporting means is attached to a second base body for reversibly detachably receiving a second tool part, and a second supporting means attached to the base body for reversibly detachably receiving a second tool part, wherein the base body is constructed in two parts, wherein the first supporting means is arranged at a first base body part and wherein the second supporting means is arranged at a second base body part.

Abstract: A dust collector for use with a power tool comprises a housing, a telescoping suction pipe coupled to the housing, a suction fan positioned in the housing and operable to generate a vacuum in the suction pipe, a dust container coupled to the housing and positioned upstream of the fan, a filter at least partially arranged in the dust container, and a filter cleaning mechanism. The filter cleaning mechanism includes an anvil, a striker moveable between a first striker position, in which the striker is spaced from the anvil, and a second striker position, in which the striker is in contact with the anvil. The filter cleaning mechanism further includes an actuator moveable between a first actuator position and a second actuator position, in which the actuator is moved closer to the anvil than in the first position, and a first spring biasing the striker toward the anvil.

Abstract: A coolant treatment device includes a tank that has a bottom portion and a side portion rising from a peripheral edge of the bottom portion, and that can store a coolant at a position which is above the bottom portion and is surrounded by the side portion. A maximum length of the side portion in an up-down direction is larger than a length of a maximum length of a straight line connecting two farthest points on the peripheral edge of the bottom portion when viewed from above.

Abstract: The disclosure relates to a permanent magnet-electromagnet hybrid array type magnetorheological polishing device, comprising a polishing mechanism, a main excitation device arranged on the polishing mechanism, and auxiliary permanent magnet sets used for driving magnetorheological liquid to be recycled. The main excitation device is a permanent magnet-electromagnet hybrid array comprising main excitation permanent magnets and fine-adjustment electromagnetic excitation devices connected with the main excitation permanent magnets. Each fine-adjustment electromagnetic excitation device comprises a coil and a coil retaining pile. The main excitation device further comprises a permanent magnet-electromagnet device connecting plate made from a non-magnetically conductive material.

Abstract: A hand-held straight grinder is provided. The hand-held straight grinder includes an elastic collet, an output shaft, a clutch assembly and a power assembly, where an opening is formed in one end of the elastic collet, and communicates with an internal space of the elastic collet; one end of the output shaft is in transmission connection to the power assembly, and the other end of the output shaft axially sleeves the elastic collet in a sliding manner, and is radially and fixedly connected to the elastic collet; the other end initially extends to the opening, and the opening is in a radial contracted state through cooperation; the clutch assembly includes a toggling unit, a first clutch unit and a second clutch unit, where the toggling unit is located between the first clutch unit and the second clutch unit.

Abstract: A random orbit sander includes a housing having a motor housing portion and a handle portion extending from the motor housing portion, a motor disposed within the motor housing portion, a random orbit mechanism driven by the motor and having an output shaft, a backing pad removably engaged with the output shaft; and a spindle lock assembly adjacent the backing pad, wherein the spindle lock assembly includes a support ring and a wrench rotatably disposed on the support ring between a stowed position, in which the wrench is disengaged from a nut on the output shaft, and a deployed position, in which the wrench is engaged with the nut to lock rotation of the output shaft.

Abstract: A glassware polishing system includes a base and a wall extending upward from the base. The wall circumscribes and defines a chamber within an inner side of the wall. A first polishing head having a first spindle extends upward from the base within the chamber and has a polishing material disposed about the first spindle. A second polishing head having a second spindle extends upward from the base within the chamber and has a polishing material disposed about the second spindle. At least one motor is disposed in the base and is configured to rotate the polishing heads about vertical axes of rotation defined by the spindles. The polishing heads may simultaneously polish internal and external surfaces of the glassware when the first polishing heads are rotated by the at least one motor.

Abstract: A polishing method is disclosed, in which a substrate can be released from a substrate holder to pass the substrate to a transfer device without damaging the substrate. The polishing head, which holds the substrate after polishing, is moved above a stage of the transfer device that is in the substrate detection position, and an elastic membrane is inflated until a substrate detection sensor provided in the transfer device detects an approach of the substrate to the stage. After the inflation of the elastic membrane is stopped, the stage is moved from the substrate detection position to a substrate receive position using an elevating device, and then gas is injected from a injection nozzle to a boundary between the substrate and the elastic membrane adhered to the substrate, causing the substrate to be released from a substrate holding surface of the elastic membrane.

Abstract: Disclosed in the present invention is a wafer polishing system, comprising at least a polishing unit, which comprises a fixed working station and at least two polishing modules, wherein the polishing modules are located on two sides of the fixed working station; each polishing module comprises a polishing platform and a polishing arm, which can drive a wafer to move relative to the polishing platform, so as to implement a polishing process; the polishing arms of the polishing modules on the two sides are located in a diagonal direction of the fixed working station; and the polishing arms can respectively swing between the fixed working station and the polishing platforms to transfer the wafer, and movement regions of the polishing arms having an overlapping portion.

Abstract: A grinding apparatus and a crystal orientation adjustment fixture thereof are provided. The crystal orientation adjustment fixture includes a fixing seat, an adjustment body, a first adjustment component, and a universal mandrel module. The adjustment body is assembled to the fixing seat through a rear end surface thereof. The adjustment body has a universal slot recessed in a front end surface thereof and a first adjustment slot formed along an adjustment direction, and a bottom of the first adjustment slot corresponds in position to the fixing seat. The first adjustment component is movably assembled in the first adjustment slot along the adjustment direction and abuts against the fixing seat. The universal mandrel module is rotatably assembled in the universal slot. The first adjustment component is adjustable along the adjustment direction to move the adjustment body relative to the fixing seat along the adjustment direction.

Abstract: The present invention relates to a substrate processing apparatus and a substrate processing method for processing a laminated substrate manufactured by bonding a plurality of substrates to each other. The substrate processing apparatus has a filler-application module (300) that applies and cures filler (F) to a gap between peripheral portions of adjacent wafers (W1, W2) in a laminated substrate (Ws), a grinding module (400) that grinds an upper surface of the laminated substrate (Ws) to which the filler (F) has been applied, and a polishing module (500) that polishes an upper surface of the laminated substrate (Ws) that has been ground.

Abstract: A method includes controlling a rotational kinetic energy of a rotor assembly of a wafer-platen, wherein a rotational velocity of the wafer-platen is either increased or decreased. The method further includes generating an electrical energy output of the wafer-platen based on decreased rotational kinetic energy of the wafer-platen. The method further includes storing the electrical energy output by the rotator assembly based on the decreased rotational kinetic energy of the wafer-platen.

Abstract: An ice blade measuring system having a holder, a non-contact measuring device, and a data storage means is disclosed. The holder holds the ice blade in a measurement position. The non-contact measuring device being operationally positioned relative to the holder to measure at least a three-dimensional (3D) shape of an ice contacting surface of an ice blade held in the holder. The non-contact measuring device being configured to create a dataset which corresponds to the 3D shape. The data storage means being operatively connected to the non-contact measuring device to record the measured dataset.

Abstract: A finishing method for material-removing finishing of a bore in a workpiece on a finishing machine, wherein a finishing tool removes material from the inner surface of the bore in a finishing operation and a shape measurement of the inner surface of the bore is performed on the finishing machine before, during and/or after the finishing operation, the method including introducing a measuring tool into the bore and generating a relative movement between the measuring tool and the workpiece, detecting geometry-relevant measurement values by the measuring tool, and evaluating the measurement values in an evaluation operation to ascertain at least one shape measurement value describes the macro shape of the bore inner surface, wherein the evaluation operation includes: filtering the measurement values generated by the measuring tool using a filter criterion and at least one filter parameter to ascertain filtered measurement values.

Abstract: A grinding disc for a grinding device, with a fastening interface formed for rotationally fixed fastening to a driven member of the grinding device such that the grinding disc, limited by a peripheral disc rim surface, can be driven into a grinding movement. The grinding disc has a fastening surface on a working side, to which fastening surface a grinding means provided with an abrasion layer can be or is detachably fastened via fastening means. The grinding disc has dust extraction openings arranged on the fastening surface and air intake openings arranged on the disc rim surface, which are connected respectively to dust outlet openings arranged on the device side of the grinding disc via an extraction channel system running in the grinding disc, with the result that, during grinding, the resulting grinding dust can be removed by means of a dust extraction device coupled to the grinding device.

Abstract: A method of cleaning a railhead uses a high pressure water abrasive slurry system. A slurry including an abrasive particulate and water is applied to the railhead at a pressure of at least 350 bar. A train incorporates an apparatus for cleaning a railhead, which includes a slurry mixing unit configured to contain a slurry including an abrasive particulate and water. At least one nozzle is in fluid communication with the slurry mixing unit. The at least one nozzle is configured to apply the slurry to the railhead at a pressure of at least 350 bar.

Abstract: An angle reference block including a series of angled end surfaces. Slots disposed in the body of said angle reference block, wherein each of said slots includes a stop member that extends upward from a bottom of the slot a given distance that is associated with a specific angle set point. A key being receivable in said slots to adjust the angle associated with said angled end surfaces, wherein each said slot designates a predefine angle for adjusting the angled end surfaces to a desired set angle when said key is disposed in a given said slot and placed on a level surface. A honing guide having a housing that rotatably carries a roller member. A flat top surface disposed on a top side of said housing. A gripping material disposed on said flat top surface for receiving and resisting movement of a blade disposed against said flat top surface.