Abstract: A coated cutting tool comprises a substrate and a coating layer and the coating layer comprises a first laminate structure and a second laminate structure and each of the first laminate structure and the second laminate structure is laminated in an alternating manner and the number of laminations is three or more and one compound layer and other compound layer of the compound layers of two kinds in the each of the first laminate structure and the second laminate structure has a specific composition and the first laminate structure and each of the second laminate structure satisfies a specific condition and an average thickness of each of the layers constituting the first laminate structure and the second laminate structure and an average thickness of the coating layer is respectively a specific one.

Abstract: A cutting tool body is configured for securing a cutting insert with a female thread. The cutting tool body includes a machining end and a tool peripheral surface which extends therefrom. The cutting tool body further includes a through, non-threaded tool coupling bore which opens out to the tool peripheral surface and a coupling screw which has a coupling screw thread. The coupling screw is being located in the tool coupling bore and configured to secure the cutting insert. The cutting tool body further includes a holding member which engages the coupling screw thread at least when the holding member is not in contact with the cutting insert.

Abstract: The invention relates to a machine tool, in particular a hand held machine tool, which has a tool-accommodating device which can be moved, in particular in oscillating fashion, about a drive axis, in order to retain a tool device on the machine tool. The tool-accommodating device has at least one clamping device, at least one retaining device and at least one locking device. The retaining device can be moved from at least one first, open position into at least one second, closed position. It is also the case that the retaining device can be forced by a clamping force, by way of the clamping device, preferably in the closing direction from said first, open position in the direction of said second, closed position. The locking device can be moved between at least one first, locking position and at least one second, unlocking position. It is possible here for said locking device to block movement of the retaining device in at least one locking position.

Abstract: A stair form member attached jaw is installed with the stair form member provided at the bottom face of the soft jaw. The stair form member is held between a pair of grips in the jaw installing groove of the master jaw from both sides of the radial direction, thereby pulling the stair form member to the bottom direction of the jaw installing groove. The position of the radial direction of the soft jaw is determined by the engagement between the bottom face of the soft jaw and the upper serration faces of the master jaw; and the position of the soft jaw in the tangent line is determined by the close contact of the stair form member to the side face of the jaw installing groove.

Abstract: A drive multiplying device for simultaneous drilling of multiple holes includes a housing. A drive shaft is rotationally coupled to and positioned through a first face of the housing. A first end of the drive shaft extends from the first face of the housing. A plurality of second shafts is rotationally coupled to and positioned through a second face of the housing. A first terminus of each second shaft extends from the second face of the housing. A gear set is positioned in the housing and is gearedly coupled to the drive shaft as well as each of the second shafts. The first end of the drive shaft is configured to couple to a rotary tool. The drive shaft is positioned to compel the gear set to rotate the second shafts. Drill bits coupled to the first termini of the second shafts are rotated concurrently with the drive shaft.

Abstract: The present invention is concerned with twist drills for drilling of composite materials such as carbon fibre reinforced plastic (CFRP) and glass fibre reinforced plastic (GFRP). The present invention proposes that a twist drill (2) is provided with a variable helix having a defined start and finish helix angle, in combination with primary and secondary relief angles such that the drill (2) is adapted to minimise thrust force, particularly when used for drilling fibre-containing composite materials and especially for hand drilling. Start and finish helix angles of 50° and 10°; 50° and 30°; and 30° and 10° have been shown to provide excellent cutting performance and exit hole quality. A large secondary chisel edge angle (24) has also been found to contribute to excellent performance with composite materials, including stack machining.

Abstract: A drill has a thinning rake face formed in the front end. An intersection ridgeline between the thinning rake face and the tip flank face is the thinning edge. On the opposite side of the rotation direction, the first and second thinning wall surfaces (6b, 6c) and are formed. Viewed from the front, an intersection angle between the thinning edge (4a) and the first thinning ridgeline is larger than 95°. The second thinning ridgeline (L2) is bent to the opposite side of the rotation direction. The thinning edge and the first thinning ridgeline are connected via a concave curve line. The first and second thinning wall surfaces are connected via a concave surface, and a curvature radius of the concave curve line is smaller than a curvature radius of the concave surface.

Abstract: It is an object to provide a rotating tool having an excellent wear resistance. The rotating tool includes: a base member including a cutting edge portion and a flute portion; and a coating film that coats a surface of the base member, a ratio B/A of a film thickness B of the coating film coating a surface of the flute portion to a film thickness A of the coating film coating a surface of the cutting edge portion being not less than 0.8.

Abstract: A foldable miter saw includes a base unit, a worktable, and a cutting unit adjustable between a working position where the saw blade of the cutting unit and the worktable define a contained angle within 90°˜45° and a folded position where one end face of the saw blade is disposed in proximity to the working surface and one guiding member and one sliding coupling component of the worktable are disposed in proximity to a working surface of the worktable, significantly reducing the dimension of the foldable miter saw and facilitating storage and packaging.

Abstract: A saber saw (1) for processing a workpiece, in particular a mineral or metallic material, including a drive (20), and a reciprocating rod (60) having a first end (63), a second end (68) and a drive point (69). Moreover, a first articulated rod (40) having a pivot point (42) and a connection point (44) as well as a second articulated rod (50) having a first pivot point (52) and a second pivot point (54) are provided, whereby the pivot point (42) of the first articulated rod (40) can be rotatably connected to the drive point (69) of the reciprocating rod (60), and the connection point (44) of the first reciprocating rod (40) can be non-rotatably connected to the drive (20) by-a connection mechanism (70), and whereby the drive (20) can be situated at least partially in a drive housing.

Abstract: A method is provided for removing an abandoned marine platform from a seabed. The platform extends below the seabed mud line. In order to remove the platform, a frame is provided having a perimeter that surrounds an open center. The frame is lowered over the platform wherein the platform occupies the open center portion. A movable cutter cable is fitted to the frame. At least a part of the cutter cable is positioned below the mud line. The cutter is moved relative to the frame to cut the platform below the mud line. Such movement can be a back and forth movement wherein the cutter cable moves in a first direction, stops and then moves in a second direction that is generally opposite the first direction. A lifting device can employ two vessels and two frames, each frame bridging from one vessel to the other. Winches on the vessel can be used to provide movement to the cutter cable. These same winches can take up cable slack as cutting moves from one platform member (e.g.

Abstract: A skiving tool comprising a cutter head (2) having a plurality of cutter blade mounting and positioning slots (8) arranged spaced, preferably equidistant, about the periphery (7) of the cutter head with the blade slots, and hence the cutting blades (4), preferably oriented perpendicular to the axis of rotation (A) of the cutter head. Alternatively, the blade slots may be inclined from the perpendicular orientation by less than 50 degrees, preferably less than 20 degrees, thereby forming a conical shaped cutter. Additionally, the blade slots may be positioned to extend radially from the cutter head axis whereby the longitudinal axis of a cutter blade will intersect the cutter head axis, or the blade slots may be radially offset from the cutter head axis. The blade slots may have any cross-sectional shape such as square, rectangular or those types having generally V-shaped seating surfaces (10) comprising a pair of angled mounting surfaces (12, 14) each less than 90 degrees.

Abstract: A wire electrical discharge machine includes: a wire electrode cumulative moving time calculator for calculating a value correlated to a wire electrode cumulative moving time as a cumulative value of time for which a wire electrode has moved in each of multiple wire electrode moving regions which are defined by dividing a movable range of the wire electrode moving relative to a worktable; and a display control unit for displaying on a display unit the information on values correlated to the wire electrode cumulative moving time for respective wire electrode moving regions.

Abstract: An electrical discharge machining device for processing a workpiece by electrical discharges generated between a tool and the workpiece is provided. The electrical discharge machining device includes an electric discharger applying electric power to the tool and the workpiece to process the workpiece, and a vibration generator applying a vibration to the tool or the workpiece using a first voltage generated between the tool and the workpiece during a time when the workpiece is processed.

Abstract: A brazed part includes two or more components that are brazed together and has related method of making. Using a method of locating parts relative to one another, an inter-component gap between the components may be formed. Subsequently, during brazing, flow control features formed along the inter-component gap may then be used to assist in the retention of the braze material between the components during brazing.

Abstract: A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a layer of joining material between the two pieces. The ceramic pieces may be aluminum nitride or other ceramics, and the pieces may be brazed with a high purity silicon or a silicon alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the interior of a heater or electrostatic chuck.

Abstract: Systems and methods of the present invention are directed to welding systems having a welding power supply and wire feeder, where the power supply and wire feeder communicate over the welding power cables. In exemplary embodiments, the wire feeder communicates with the power supply over the welding cables using current draw pulses which are generated and recognized by the power supply. Similarly, the power supply generates voltage pulses which are transmitted over the welding power cables and recognized by the wire feeder.

Abstract: A power transfer assembly for supplying electrical power to an electrode of a contact-start plasma arc torch has two conductive elements biased by a compression spring. The conductive elements are provided with mating structures that are defined by parallel surfaces that can be slidably engaged with each other. The conductive elements are configured to engage the spring such that positioning the mating structures to slidably engage each other generates an off-axis force in the spring that biases the mating structures together along at least one line of contact to assure an electrically conductive path through the mating structures from one conductive element to the other. One conductive element is a static element that is positioned against a power supplying element of the torch, while the other is a movable element that engages or is attached to the electrode.

Abstract: A component loading-welding system for welding a component panel to a vehicle body panel includes a rotation portion body having first and second opposing sides. The first opposing side is coupled to a robot arm. A picking device is installed in the rotation portion body and is configured to hold and release the component panel. A vehicle body pressurizing tip is installed in the rotation portion body. A pressurizing portion body is rotatably installed at the second opposing side of the rotation portion body. A pin clamp is installed in the pressurizing portion body and is configured to clamp the component panel. A component pressurizing tip is installed in the pressurizing portion body and is configured to apply pressure to the component panel. A multi point projection welding method is also disclosed.

Abstract: The present invention provides a spot resistance welding electrode cap for welding two or more work-pieces together, including a substantially cylindrical body having an interior surface, an exterior surface, and a tapered interior cavity for frictionally fitting over an electrode shank. The exterior surface of the body includes a plurality of longitudinally extending depressions or flutes formed therein which provide an increased external surface area to the electrode cap, thus increasing the ability to transfer additional amounts of heat. The electrode cap further includes a plurality of fins disposed on the interior surface of the body within the interior cavity. The free ends of the fins are chamfered in order to ease the transition of coolant flowing throughout the shank proximate the electrode cap.

Abstract: A reflectance detection method in which a workpiece is irradiated with a laser beam and reflectance is detected, irradiating, with a light amount H0, the workpiece with a laser beam with a first wavelength X1 shorter than a detection-target wavelength X and detecting a light amount H1 of reflected return light, irradiating the workpiece with a laser beam with a second wavelength X2 longer than the detection-target wavelength X with the light amount H0 and detecting a light amount H2 of reflected return light, and employing H calculated based on an expression shown below as the light amount of return light obtained when the workpiece is irradiated with the detection-target wavelength X and calculating reflectance obtained when the workpiece is irradiated with the detection-target wavelength X based on H/H0.

Abstract: A direct diode laser processing apparatus includes a laser oscillator that emits a multiple-wavelength laser beam, a transmission fiber that transmits the multiple-wavelength laser beam emitted from the laser oscillator, and a laser processing machine that condenses the multiple-wavelength laser beam transmitted through the transmission fiber and processes a workpiece. According to chromatic aberrations of the multiple-wavelength laser beam and the wavelength dependence of emissivity of the workpiece, a light intensity distribution of the multiple-wavelength laser beam in a thickness direction of the workpiece is provided with a plurality of peaks.

Abstract: An apparatus for material deposition on an acceptor surface includes a transparent donor substrate having opposing first and second surfaces, and a donor film on the second surface. The apparatus additionally includes an optical assembly, which is configured to direct a beam of radiation to pass through the first surface of the donor substrate and impinge on the donor film at a location on the second surface so as to induce ejection of droplets of molten material from the donor film at an angle that is not normal to the second surface at the location onto the acceptor surface.

Abstract: A laser containment device, adapted to be mounted to a laser head, has an outer shell and an inner wall defining a peripheral chamber there in-between. An inner seal and an outer seal, respectively mounted to the outer shell and to the inner wall, are adapted to contact a workpiece. The peripheral chamber, encircling an opening in the laser containment device for letting a laser beam reach a workpiece, may be connected to a differential pressure generator operative to generate a differential pressure therein. A pressure sensor is located within the peripheral chamber to read the differential pressure. In use, the laser head, mounted to a computer-controlled manipulator, emits its laser beam. The pressure sensor sends its pressure readings to a controller which compares their values with a predetermined pressure threshold. If the pressure readings cross this threshold, the controller stops the emission of the laser beam.

Abstract: A laser welding method of the present disclosure includes the step of irradiating a workpiece with a laser beam in a helical shape along a weld part of the workpiece. The helical shape is a combination of a circular trajectory in which a laser beam is moved circularly, and a movement trajectory in which the laser beam is moved in a proceeding direction along the weld part. Furthermore, first energy of the laser beam moving so as to have a component of the proceeding direction in the circular trajectory is larger than second energy of the laser beam moving so as to have a component of an opposite direction to the proceeding direction in the circular trajectory.

Abstract: A method for generating a weld path aligned along a seam between two parts uses a computer having a control unit and a storage medium. The method includes aligning a crosshair line at a plurality of points along the seam and storing a position value for each of the plurality of points in the storage medium; calculating a width and a height of the seam based on the stored position values of each of the plurality of points; and generating the weld path based on the height and the width of the seam.

Abstract: A base structure is clad and coolant channels are formed through the cladding and into the base structure. A line of tangency relative to the outer clad surface is defined for each point thereon. Linear rows of a metal feedstock are directed towards and deposited on the outer clad surface as a beam of weld energy is directed to the metal feedstock so-deposited. The metal feedstock is the same material as the cladding or one that is weld compatible therewith. A first angle between the metal feedstock so-directed and the line of tangency is maintained in a range of 20-90°. The beam is directed towards a portion of the linear rows such that less than 30% of the cross-sectional area of the beam impinges on a currently-deposited one of the linear rows. A second angle between the beam and the line of tangency is maintained in a range of 5-65°.

Abstract: Laser additive manufacturing apparatus, systems, and methods for the fabrication of high quality freeform high value structures. The apparatus, systems, and methods utilize a material powder having varying particle size and shape as raw material. It can also be adopted to use a wire as the feed material.

Abstract: Methods for joining a first blank and a second blank, wherein the first blank and the second blank include a steel substrate with a coating including a layer of aluminum or an aluminum alloy. The method includes selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion, and welding the first portion to the second portion. The welding includes using a laser beam and an arc welding torch, wherein the arc welding torch includes a wire electrode, wherein the wire electrode is made of a steel alloy including gammagenic elements, optionally a stainless steel alloy including gammagenic elements and displacing both the laser beam and the arc welding torch in a welding direction, and wherein in the welding direction, the arc welding torch is positioned in front of the laser beam.

Abstract: An apparatus includes a needle including a hole extending from a first end to a second end through the needle and an energy-emitting device arranged in the hole of the needle. The energy-emitting device being configured to emit a specific wavelength and intensity of energy directed at an electrically-actuatable element to bond a circuit trace and the electrically-actuatable element.

Abstract: A laser system is configured to produce a distribution of self-focus damage volumes through the thickness of a substrate. A laser of the laser system produces a laser beam, and an optical assembly receives the laser beam and emits a conditioned laser beam having a geometric focal region. Placing the substrate in the path of the conditioned beam shifts the focal region to an effective focal region. The optical assembly and/or optical elements thereof can be configured such that the distribution of self-focus damage volumes is uniform over the thickness of the substrate by accounting for the non-linear effects of the substrate on the light that propagates through the substrate.

Abstract: The present invention relates to a method of manufacturing a component 1 by additive manufacturing. The method comprises providing a work surface 2 on which the component 1 is to be manufactured, and providing at least one deposition material 3 from which the component 1 is to be composed. The deposition material, typically in the form of wire, is advanced to a localized deposition area 4 where it is added to the component 1 being manufactured. The method further comprises focusing at least one light beam 5 of incoherent light emitted from at least one heating source 6 in the deposition area 4 so that the deposition material 3 is deposited for building up the component 1. At least one light focusing mirror 7 and/or lens 11 is used to focus the incoherent light in the deposition area 4. The invention further relates to the use of such a method in space, such as on a space station, on a space craft or on parabolic flights for testing.

Abstract: A method of welding a weld stud to a workpiece and of checking the strength of the welded joint includes the steps of providing a tool, a workpiece, and a weld stud, the weld stud including a shank and a polygonal shaped head; welding the weld stud onto the workpiece; applying the tool to the polygonal shaped head section of the stud; applying a predetermined test torque to the weld stud with the tool; and checking the welded joint for satisfactory acceptance of the test torque.

Abstract: A securing system, such as a welding system, includes a robot configured to transfer a part to a home position. A securing station has a frame and a gun supported on the frame. The gun includes first and second members movable relative to one another, which are first and second weld gun electrodes, for example. The gun is configured to secure a component to the part in a securing position during a securing operation. A float assembly interconnects the gun to the frame and is configured to permit the gun to glide relative to the welding frame between the home position and the securing position. A homing assembly includes a homing guide configured to release the welding gun from the home position during the securing operation, such as resistance welding fasteners to sheet metal workpieces.

Abstract: A device for positioning a number of function elements, each having a recess for a shaft, in a predetermined angle position on the shaft, may include a plurality of support balconies arranged one above the other, each being destined for a function element. A movable guide carriage may be configured to enable the shaft to be push the shaft from above through the recesses of the function elements. The support balconies may each include at least one gripper respectively fixing one function element. The at least one gripper may be arranged on an associated gripper carriage and may be adjustable in an x-direction and a y-direction relative to the associated gripper carriage and the support balcony. The associated gripper carriage may be mounted on the support balcony so as to be rotatable about a z-axis.

Abstract: The present invention relates to a laser ablation and welding method for workpieces, in particular, metal sheets, and an automatic laser ablation and welding system, where an ablation procedure and a welding procedure are executed in an automation line.

Abstract: Systems and methods are disclosed herein for repairing components. A material layer may be deposited on a surface of a component. The material layer may cover a cooling hole. A pulsed heat source may heat the component and the material layer. An infrared camera may take a series of images of the component. A location of the cooling hole may be identified based on thermal properties of the component. A removal tool may remove a portion of the material layer in order to expose the cooling hole.

Abstract: An extracting tool for extracting a metal piece located in an aerodynamic stream of a turbomachine, such as a flow splitter nose, includes a rod; a first stop located at a distal end of the rod and provided with a claw for bearing against a first edge of the metal piece; a gripping member translationally mounted to the rod and including a first projecting portion arranged to receive a second, opposite edge of the metal piece; a tightening mechanism configured to keep the gripping member bearing against the metal piece and the first stop.

Abstract: A method for remanufacturing or repairing a cylinder head having a bore configured to receive a fuel injector comprises machining a portion of a surface forming the bore to remove imperfections, inserting a repair component into the bore proximate the machined portion of the bore, and spraying material into the bore proximate the machined portion and the repair component, thereby holding the component into place.

Abstract: A method for manufacturing an annular member includes: a cylindrical member forming step of forming a cylindrical member with an annular shape from a round bar material; and a cutting and separating step of cutting and separating the cylindrical member over an axial direction of the cylindrical member while rotating the cylindrical member, the cylindrical member being cut and separated by a shear force obtained by restraining molds, which apply an urging force to an outer circumferential surface of the cylindrical member, and by a restraining mold, which is provided with a gap on the outer circumferential surface of the cylindrical member, among a plurality of restraining molds provided on an inner circumferential surface side and an outer circumferential surface side of the cylindrical member along the axial direction, to obtain a plurality of annular members.

Abstract: The invention proposes a method for producing a protective reinforcement for the leading edge (BA) or trailing edge of a blade (P), the leading edge (BA) or trailing edge being curved, the method comprising steps of flattening (102) a hollow tube (1) so as to form at least one fold line (6) extending along the tube (1), opening (104) the flattened tube (1) by cutting the tube (1) along a cutting line (8) opposite the fold line (6) with respect to the tube (1), so as to form two flanks (16, 18) linked at the fold line (6) and intended to be mounted on the pressure side and the suction side of the blade (P), the method being characterised by a preliminary step (100) of bending the hollow tube (1) carried out before the flattening (102) and adapted such that the fold line (6) after flattening (102) is curved and substantially matches the curved leading edge (BA) of the blade (P).

Abstract: A method of manufacturing a liquid-cooled jacket, includes: a placing step for placing a sealing body on a jacket body; a first primary joining step for performing frictional stirring by moving a primary joining rotary tool along a first abutment portion where a step side surface of a peripheral wall stepped portion and an outer peripheral side surface of the sealing body abut on each other; and a second primary joining step for performing frictional stirring by moving the primary joining rotary tool along second abutment portions in each of which a step side surface of a columnar support stepped portion and a hole wall of a hole abut on each other.

Abstract: Provided is an anti-vibration device manufacturing method of press-inserting an anti-vibration bush having a rubber elastic body famed on an outer periphery of a cylindrical body into an attachment hole formed in a press-insertion object, the anti-vibration device manufacturing method including: a press-inserting step of moving the anti-vibration bush in a first direction to be press-inserted into the attachment hole; a returning step of moving the anti-vibration bush press-inserted into the attachment hole in a second direction opposite to the first direction; and a strain relaxing step of relaxing a strain of the rubber elastic body by stopping the anti-vibration bush while regulating the movement of the anti-vibration bush between the press-inserting step and the returning step.

Abstract: An insertable fastener installation apparatus for a flat substrate has a thickness, T. A roller press station is used to press T-nuts into holes in the substrate. An optical vision system detects the location of the holes in the moving substrate and aligns the t-nuts with the holes. A computer controlled pick and place robot takes T-nuts from an escapement of a hopper feed system and aligns, but does not fully insert, the t-nuts in the substrate. A conveyor system feeds the substrates through the optical vision system, the pick and place robot station and the roller press station. A first roller is spaced apart from a second roller by a gap in the roller press station and the gap is less than the thickness of the substrate. The hopper feed system includes a bulk hopper, a bowl, a track and an escapement.

Abstract: The invention relates to a machining device for the machine-assisted production and machining of dental workpieces (16), particularly of artificial teeth and/or other dental replacement parts, the at least one workpiece (16) being clamped in at least one workpiece retainer (11) which can be raised, lowered and rotatably driven, is positioned on a rotational axis (9), and, for the purpose of machining, feeds said workpiece (16) to at least one tool spindle (4, 5, 6) that is rotationally driven and has a tool (7) secured thereto, an additional tool retainer (2, 2a, 2b) with a plurality of tools (7) arranged thereupon being associated with said workpiece retainer (11, 11a, 11b) and lying opposite on one side thereof, and a workpiece changer (22, 22a, 22b) which receives the workpieces (16, 16a, 16b, 16c) to be machined, such that they can be exchanged, being arranged on the other side of said workpiece retainer (11, 11a, 11b).

Abstract: A pallet changing apparatus adopting a table 4 capable of moving back from and forth for a side of a turning shaft 1 and having an oscillating portion 41 for placing workpieces W, W? by means of pallets P, P? so as to oscillate freely by a rising portion 42 at the leading end of the table 4, wherein the turning shaft 1 covers a turning supporting portion 11 at its lower end side and turns together with a pallet changing arm 3 and moves freely in a vertical direction, and an insertion and removal hole 20 is provided, at the covering region, and allows the rising portion 42 to be inserted into the insertion and removal hole 20 and removed from the insertion and removal hole 20.

Abstract: A guiding system for portable machine tools has at least one guiding apparatus which is fixable on a portable machine tool. The guiding system also has at least one positive guidance unit to which the at least one guiding apparatus is connectable in a positive-locking manner to positively guide the portable machine tool. The guiding system also has at least one position fixing unit configured to fix a position of the at least one guiding apparatus on the at least one positive guidance unit. The at least one position fixing unit has at least one fastening unit configured to releasably fix the at least one position fixing unit on the at least one guiding apparatus.

Abstract: A control device includes a control part which generates a torque command based on a resultant command, which is obtained by adding a position deviation, which is the difference between a position command and the actual position of a feed shaft, to an oscillation command to control the feed shaft, and an elastic deformation amount calculation part which calculates the elastic deformation amount of a structure composed of a tool or workpiece and the feeding mechanism therefor based on the torque command. An oscillation command generation part generates the above oscillation command based on the rotation speed of the workpiece, the position command of the feed shaft, and the above elastic deformation amount.

Abstract: A rail processing device (1) comprising at least a first (3A) and a second work station (3B) provided on a common frame (30), and configured to alternately lock a rail (2) when the latter is being processed, each work station (3A, 3B) comprising at least a first magnetic anchorage plane (4) configured to cooperate with a web (2A) of the rail (2) when the latter is being processed in the respective station, and a transport system (50A, 50B) to move the rail (2) from the first work station (3A) to the second work station (3B) and vice versa.

Abstract: The method of the present invention is capable of polishing a high hardness work at high polishing efficiency. The method comprises the steps of: pressing a surface of the work onto a polishing part of a rotating polishing plate; and supplying slurry while performing the pressing step. The method is characterized in that an activated gas, which has been activated by gas discharge, is turned into bubbles and mixed into the slurry.