Abstract: A hand-powered jewellery rolling mill is disclosed. The mill comprises a support frame and a pair of opposed parallel cylindrical rollers rotatably mounted to the support frame. A drive shaft is connected to at least one of the rollers for rotation thereof. A manually rotatable handle is configured for providing a drive force to the drive shaft. The handle may be connected to the drive shaft through a high-ratio gear train. The rolling mill may further comprise an input shaft, rotatable by the manually rotatable handle. The input shaft may have a worm and a worm-to-gear coupling may transfer torque from the input shaft to the drive shaft.

Abstract: A method for operating a storage device for two rolls in a roll stand for rolling metal. The storage device is component part of the roll stand or can be positioned relative to the roll stand so that the rolls can be transferred from the roll stand into the storage device or vice versa. A measuring system is provided which detects the temperatures and/or the diameters of the rolls individually and independently of one another, at least at predefined detection positions, as viewed in the direction of the roll axes. After transmission to an automation unit that controls the roll stand, the unit can adapt a roll model, by means of which it repeatedly determines the temperatures and/or the diameters of the rolls, at predefined determination positions, in the direction of the roll axes, using operating data of the roll stand for the rolls of the same type.

Abstract: A drawing bench of a drawing machine comprising a drawing carriage which is translatable along a predetermined direction on a base structure; a rack-pinion system adapted to translate the drawing carriage along said predetermined direction on the base structure; wherein the rack-pinion system comprises at least two motors; at least two pinions and one or more racks; and wherein each motor is adapted to drive a respective pinion.

Abstract: To improve forming performance in a smart mill allowing implementation of required forming by moving a forming tool arranged in a stand of a pipe mill automatically to a predetermined position. Non-drive type breakdown rolls BD exclusive to bending are arranged in multiple stands. Drive roll DR stands exclusive to driving are arranged in stages in front of and behind each DR stand. The drive roll DR is configured to apply thrust to a central portion of a raw material using an upper flat roll and a lower flat roll, and has thrust control means and driving rotation number control means for applying thrust required for passage through the step using the drive rolls DR in multiple stages entirely and controlling the thrust.

Abstract: A method of producing a carcass for a flexible pipe, the carcass and a flexible pipe with the carcass includes providing at least one first metallic strip a cover metallic strip. Shaping the first strip to have a profile with a first fold adapted to face towards the carcass axis and a second fold adapted to face away from the carcass axis. Pretreating an anchor width section of the cover strip including a weakening treatment of resistance against length extension and/or a length extension of the pretreated part of the anchor width section. Inserting the anchor width section of the cover strip into the first fold, ensuring that a cover width section of the cover strip extends beyond the second fold. Helically winding the first metallic strip and the cover strip, to provide that the first fold engages and interlocks with the second fold and that the cover width section covers a helical interstice between windings of the first metallic strip on the inner side of the carcass.

Abstract: A method of manufacturing a complex-shaped metal part, including the steps of applying a metallic sheath around a sheet metal workpiece and applying an electric current through the workpiece in the metallic sheath to heat the workpiece. The method also includes shaping the workpiece in the metallic sheath into a complex-shaped metal part while it is being heated. The shaping can be performed between two ceramic dies or using other techniques for forming complex shapes and curvatures into the workpiece. The method then may include cooling the complex-shaped metal part and removing the metallic sheath from the complex-shaped metal part. This method can allow reactive and refractory material to be safely heated without oxidation when heating/forming in air when the workpiece is sealed within a sacrificial stainless steel or nickel alloy envelope to protect the enclosed workpiece.

Abstract: A bending system includes a greasing unit configured to move in a right-left direction by way of a moving operation of an external operation member and to supply grease to a sliding contact part of a tool holder, and a greasing unit holder provided on one side in a right-left direction of a table and configured to support the greasing unit. The greasing unit includes a greasing unit main body, and an application member provided on the greasing unit main body and formed in a shape corresponding to the sliding part of the tool holder, the application member being configured to be able to be impregnated with the grease.

Abstract: An embossing roll (1) having a cylindrical surface (2) comprising a central portion (3) having an embossing pattern (10) and side portions (4a, 4b) arranged on each side of the central portion, which are free from embossing pattern, wherein circumferential buffer channels (5) are provided on each side of the central portion (3), between the central portion and the side portions, along the cylindrical surface (2) of the embossing roll.

Abstract: What is described is a process for producing an article for use in the foundry industry, selected from the group consisting of molds, cores, feeder elements and molding material mixtures, comprising the following steps: (S1) producing or providing a binder system comprising the following components in three spatially separate vessels: a component (A) comprising particulate amorphous silicon dioxide, a first liquid component (B) comprising waterglass, and a second liquid component (C) comprising aluminate ions dissolved in an aqueous phase, (S2) contacting a mold base material (D) and constituents of all the said components (A), (B) and (C) of the binder system in predetermined ratios in one or more steps, so as to result in a molding material mixture in which the aluminate ions and the particulate amorphous silicon dioxide are mixed wholly or partly into the waterglass, wherein steps (S1) and (S2) are conducted in a facility for producing molding material mixtures.

Abstract: A gold ingot comprising: a generally obround body having, a rounded spherical surface on each opposing end of said obround body, four curvilinear longitudinal edges along a main axis of said obround body, four flat longitudinal surfaces along the main axis of said obround body, and a circular void that extends through two opposing surfaces of said four flat longitudinal surfaces, said circular void located between centers of radii located on the flat longitudinal surfaces adjacent the rounded spherical surface on each opposing end of said obround body.

Abstract: A casting-rolling integrated plant that is capable of producing, from a steel melt, in a cost-effective manner and with high productivity, a hot-rolled finished strip having a thickness of ?0.6 mm, an excellent flatness, and an excellent profile by dividing the thickness reduction into at least three stages (roughing, intermediate and finishing train), measuring the actual profile after the roughing, intermediate and finishing train, and equipping the stands in the roughing, intermediate and finishing train with actuators for influencing the strip profile and/or the strip flatness.

Abstract: The present disclosure is directed to 3D printing and other additive manufacturing, in aspects including aqueous dispersion precipitation, exothermic metal conductor processing, foaming, seeding, thermosensitive polymers, build material crosslinking.

Abstract: A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.

Abstract: The invention relates to a nozzle for producing microdroplets of metal using gas flow, to a nozzle for producing microdroplets using electrodispersion, to a combination of a melt spinner for forming elongate metal fibers with a nozzle and to a method of forming microdroplets using at least one of a gas flow and electrodispersion.

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a silicate slurry application system to build support structure layers with fused particulate suspended in the silicate slurry or to apply a layer of the silicate slurry to a metal support structure prior to manufacture of a metal object feature that is supported by either type of support structure. The fused particulate of a silicate support structure or a layer applied to a surface of a metal support structure forms a glassy, brittle layer on which the metal object feature is formed. This glassy, brittle structure is removed relatively easily from the object after the object is manufactured.

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a borate solution application system to either build support structures with a borate solution containing silica particles or to apply such a borate solution to a surface of a metal support structure prior to manufacture of a metal object feature that is supported by the support structure. The silica particles in the borate solution structure form a glassy, brittle structure on which the metal object feature is formed. This glassy, brittle structure is removed relatively easily from the object after the object is manufactured.

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with a borate solution application system to apply a borate solution to a build platform surface prior to manufacture of a metal object. The borate solution is permitted to air dry before the platform is heated to its operational temperature range for formation of a metal object on the platform. The evaporation of the solvent from the borate solution causes the borate salt to form a glassy, brittle anhydrous borate layer on which the metal object is formed. This brittle layer is removed relatively easily with the object after the object is manufactured and the build platform is permitted to cool. The borate layer improves the wetting of the surfaces of build platforms made with non-wetting materials, such as oxidized steel, while also preventing metal-to-metal welds with wetting materials, such as tungsten or nickel.

Abstract: A method for manufacturing an additively-manufactured object includes forming a plurality of weld beads obtained by melting and solidifying a filler metal sent out from a torch and depositing each weld bead. The method includes forming and depositing a first weld bead of the plurality of weld beads in a first welding control mode, and forming and depositing a second weld bead of the plurality of weld beads in a second welding control mode with a higher heat input than in the first welding control mode. The first welding control mode is a forward and reverse feeding control in which, while the filler metal is fed sequentially in a forward direction and a reverse direction, a current waveform of a power supplied to the filler metal from a power source is synchronized with the forward and reverse feeding of the filler metal.

Abstract: The present disclosure generally relates to a method of fabricating a graded metallic structure by additive manufacturing and the graded metallic structure thereof. The method comprises preparing a material powder in a supply container, the material powder is partitioned into a plurality of longitudinal volumes and comprises different metallic powders, performing an additive manufacturing process comprising supplying layers of the material powder from the supply container, displacing the layers of material powder to a fabrication platform and fusing the layers of material powder on the fabrication platform to form the graded metallic structure, wherein at least one longitudinal volume has a varying transverse cross-sectional area and at least one longitudinal volume has a varying longitudinal cross-sectional area, such that the fused metallic powders in the graded metallic structure are graded along the longitudinal and the transverse.

Abstract: There is provided a method of fabricating a three-dimensional object. The method includes supplying, flattening, and collecting. The supplying supplies, with a powder supplier, powder to a fabrication chamber. The fabrication chamber includes a fabrication stage to store powder and an outer edge portion outside the fabrication stage, the outer edge portion having one bottom surface. The flattening flattens, with a flattener, the powder supplied by the supplying. The collecting collects, with a powder collector, the powder having overflowed from the fabrication stage to the outer edge portion by the flattening into the fabrication stage.

Abstract: The invention relates to a method for determining individual vectors for open-loop and/or closed-loop control of at least one energy beam of a layering apparatus, comprising at least the steps of: providing layer data characterizing at least one component layer of a component to be additively manufactured, on the basis of the layer data, determining individual vectors, according to which at least one energy beam is to be moved relative to a construction and joining zone of the layering apparatus in order to solidify a material powder selectively to the component layer, determining at least one node point of a plurality of individual vectors, and adapting at least one property of at least one individual vector of the at least one node point, the at least one property being selected from a group comprising spatial orientation, radiation sequence in relation to at least one other individual vector, and vector length.

Abstract: A tool is provided having a tool holder and a brazed top clamp positioned in a portion of the tool holder. The brazed top clamp is made of a material that has a hardness that is greater than the material that makes up the tool holder. In certain embodiments, the tool holder has a slot that is in the shape of a “T-slot” and the top clamp is in the shape of a “T shaped rail” that is positioned within the “T-slot” of the tool holder.

Abstract: A coated cutting tool including a substrate and a coating is provided. The coating includes a nano-multilayer of alternating layers of a first nanolayer being Ti1-xAlxN, 0.35?x?0.70, and a second nanolayer being Ti1-yAlyN, 0.12?y?0.25. A sequence of one first nanolayer and one second nanolayer forms a layer period. The average layer period thickness in the nano-multilayer is ?7 nm. The nanomultilayer has a columnar structure with an average column width of ?70 nm.

Abstract: A method for coating a substrate 11 is disclosed. The method includes at least the following steps: depositing a first base layer 22 comprising a nitride of at least Al and Cr on the substrate 11 by physical vapor deposition at a gradually increasing substrate bias voltage from a first substrate bias voltage to a second substrate bias voltage; depositing a second base layer 23 comprising a nitride of at least Al and Cr on the first base layer 22 by physical vapor deposition at a constant substrate bias voltage that is greater or equal to the second substrate bias voltage; and depositing an outermost indicator layer 24 on the second base layer 23, wherein the outermost indicator layer 24 comprises a nitride of Si and Me, wherein Me is at least one of Ti, Zr, Hf, and Cr, wherein the outermost indicator layer 24 is deposited by physical vapor deposition at a substrate bias voltage that is less than the constant substrate bias voltage applied during deposition of the second base layer 23.

Abstract: A clamping device for releasably holding a tool holder shank includes a spindle rotatably mounted inside a housing, a drawbar axially moveable in a bore in the housing, engagement members moveable under the effect of the drawbar into locking engagement with the tool holder shank, an actuating member slidably mounted to the spindle, a motion transferring mechanism for transferring an axial movement of the actuating member into a movement of the drawbar, and a hydraulic actuator with a piston unit for moving the actuating member. A valve assembly with two parallel and oppositely directed check valves provides a residual hydraulic pressure in a hydraulic chamber of the hydraulic actuator that will affect an automatic return movement of the piston unit after a movement of the drawbar to a retracted locking position.

Abstract: Provided is a liquid circulation system including: a shield that covers a boring area of a workpiece in which a hole is bored with a tip of a bit attached to a boring device; a liquid container that holds a liquid; a liquid feeder that forcibly feeds the liquid held in the liquid container to the tip; and a liquid collector that forcibly collects a liquid suspension from an area shielded by the shield and returns the liquid suspension to the liquid container. The liquid circulation system is able to ensure liquid circulation while reliably preventing backflow of the liquid suspension.

Abstract: A die head for cutting threads in a pipe. The die head includes a drive portion, a die retention portion, a cap, and a plurality of windows. The drive portion has a plurality of recesses configured to receive torque from a pipe threading machine. The die retention portion includes a plurality of die posts. Each die post is configured to receive a die having teeth for cutting the threads in the pipe. The cap is coupled to the die retention portion. Each window is defined between each pair of adjacent die posts and the cap. An end of each die adjacent the cap is visible through a corresponding window of the plurality of windows such that all of the teeth of the die are visible through the corresponding window.

Abstract: Systems and methods for welding asset tracking are disclosed. In some examples, a welding asset tracking system may comprise an asset tracking network of tags, hubs, and/or gateways retained by welding assets within a welding area. The asset tracking network may obtain and/or communicate to an asset tracking server welding data related to one or more of the welding assets, as well as position data obtained via an internal and/or external positioning system. In this way, the welding asset tracking server may continually receive updated information regarding each welding assets identity, location, and/or use. The asset tracking server may additionally send a command to a selected welding asset that causes an interface of the selected welding asset to emit an output that enables an operator to physically identify the welding asset.

Abstract: A method for synchronizing welding currents of at least two welding current sources prior to performing a simultaneous welding process on at least one workpiece, in particular a welding process with non-consumable electrodes, wherein the method includes the following steps: a first welding current source outputting a reference signal, wherein the reference signal contains synchronization information; a second welding current source measuring or receiving the reference signal and evaluating the synchronization information contained in the reference signal; synchronizing a second welding current of the second welding current source with a first welding current of the first welding current source on the basis of the synchronization information. The invention furthermore relates to a welding current source and to a system having at least two welding current sources.

Abstract: In a method for ascertaining the wear of a contact tube during a robot-assisted welding method on a workpiece using a welding torch with a consumable welding wire, the welding current is measured and the wear of the contact tube is determined via the measured welding current (I). The measured welding current is expressed as a ratio of the measured welding voltage, and the ratio of the welding current to the welding voltage is used for evaluating the wear of the contact tube and is compared with at least one defined threshold value, and a warning is issued when at least one defined threshold value is reached.

Abstract: An embodiment of the present invention provides a retainer ring for welding wire, the retainer ring comprising: a pressure plate which is disposed on a welding wire stack wound and stored in a receiving container so as to press the welding wire stack, and has an opening formed at the center thereof; and a plurality of guide wings which are provided at the outer circumference of the pressure plate to come into contact with the inner wall of the receiving container and each comprise a flexible body that can be changed in shape.

Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.

Abstract: A welding apparatus includes a movement assembly for at least one electrode configured to which can be passed through by current for the execution of welding treatments. The assembly includes at least one cylinder and at least one stem which rigidly supports the electrode; the stem is at least partially accommodated in the cylinder and is coaxially movable with an alternating straight motion along the longitudinal axis of the cylinder, in order to press the electrode against the parts to be welded with a corresponding welding force. A device for measuring the welding force is also provided, which has a plate, which is stably interposed between the stem and the electrode with the respective faces arranged at right angles to the longitudinal axis, and a plurality of deformation sensors accommodated in through slots provided in the plate and distributed along an imaginary circumference which is centered along the longitudinal axis.

Abstract: An element, a friction element welding method, and a method for producing a friction element welded joint. The element is for performing friction element welding on a sheet stack of two or more stacked metal sheets by pressing the element into the sheet stack while the element is rotated. The element includes a circular columnar mandrel that is to enter the sheet stack, a circular collar disposed at an upper end portion of the mandrel, a first conical body extending from a lower end surface of the mandrel, and a second conical body disposed on the lower side of the first conical body. The vertical angle ? of the second conical body and the vertical angle ? of the first conical body satisfy the relation ?<?.

Abstract: A weld metal assembly is provided that includes a tube containing an exothermic reaction weld metal, a metal disk, and an outer packaging having a sealed area in which the tube and the metal disk are contained.

Abstract: A method for determining a position of a workpiece for a laser machining process includes the steps of: radiating a measurement beam to at least one workpiece and a support device surrounding the workpiece along at least one first and along at least one second measurement path, the first path forming a predetermined angle with the second path; acquiring a portion of the radiated measurement beam, reflected by the support device and the workpiece, along the first and along the second measurement path and generating a corresponding measurement signal, the support device and the workpiece comprising a reflectivity different from each other; and determining a position of the workpiece based on the measurement signal. A method for machining a workpiece by a laser beam includes the method for determining the position of the workpiece. An apparatus for determining a position of a workpiece is configured for conducting the methods.

Abstract: A laser apparatus includes a laser oscillator; an acousto-optic modulation unit including a first acousto-optic modulator that diffracts a laser beam from the laser oscillator when a first ultrasonic wave is applied and a second acousto-optic modulator that diffracts a higher order beam output from the first acousto-optic modulator when a second ultrasonic wave is applied; and an amplifier that amplifies the laser beam from the acousto-optic modulation unit, a propagation direction of the first ultrasonic wave relative to a diffracted direction of the higher order beam emitted from the first acousto-optic modulator and a propagation direction of the second ultrasonic wave relative to a diffracted direction of a higher order beam emitted from the second acousto-optic modulator being different.

Abstract: A laser engraving machine having dual quick release mirror holders is provided. The laser engraving machine comprises a machine station, a first mirror holder and a second mirror holder. The machine station has a working platform, a rail and a first laser tube. The first mirror holder is disposed on the rail and receives the laser light emitted from the first laser tube for carrying out a laser processing on the working platform when moves back and forth on the rail. The second mirror holder is composed of a second laser tube assembled on an output module, wherein the output module has a first binding portion and a second binding portion. The first binding portion detachably attaches to the rail for the second mirror holder to move on the rail. The second binding portion detachably attaches to the first mirror holder.

Abstract: A cutting apparatus comprising a cutting table and a first cutting material belt movably supported about the cutting table about a first roller and a second roller. A second cutting material belt is removably supported above the first cutting material belt about the first roller and a third roller, wherein the second roller is intermediate the first roller and the second roller.

Abstract: In one aspect, the present invention relates to a control unit (RE) for calculating a spatially and time-resolved, combined setpoint data set (SW-DS) for open- and/or closed-loop control of a laser cutting process during laser cutting with a laser cutting machine (L), wherein a processor (P) is intended to access a process model (PM) in a first memory (SI) via a process interface (P-SS) and a machine model (MM) in a second memory (S2) via a machine interface (M-SS) in order, on the basis of an estimated status data of the laser cutting process and the movement process, to calculate the spatially and time-resolved, combined setpoint data set (SW-DS) with coordinated setpoints for the laser cutting process and setpoints for the movement process, taking into account the read-in sensor data.

Abstract: A flux-cored wire for arc welding, including a steel sheath filled with flux, where the wire contains, relative to a total mass of the wire, Cr: 16.0 to 22.0 mass %, Ni: 6.0 to 11.0 mass %, Mn: 0.7 to 2.6 mass %, Si: 0.1 to 1.1 mass %, Zr: 0.2 to 0.8 mass %, Fe: 45.0 to 65.0 mass %, TiO2: 5.0 to 9.0 mass %, SiO2: 0.1 to 2.0 mass %, ZrO2: 0.5 to 3.0 mass %, and Bi: less than 0.0020 mass %. Where by mass %, a Si content is denoted by [Si] and a Zr content is denoted by [Zr], a value of parameter A expressed by A=[Si]+2×[Zr] satisfies 1.4 to 2.5.

Abstract: A welding device may include a frame, a welding assembly, a fastening bracket, a protective pressure plate, a first drive mechanism, and a second drive mechanism; the welding assembly may include a first welding head and a second welding head that are arranged opposite each other, and the first welding head may be fastened on the frame; the fastening bracket may be movably provided on the frame, and the second welding head may be fastened on the fastening bracket; the protective pressure plate may be fastened on the fastening bracket or the second welding head; and the first drive mechanism may be drivingly connected to the fastening bracket and configured to drive the fastening bracket so that the second welding head may reach a position of a welding point and the protective pressure plate may press against a to-be-welded member.

Abstract: A suction unit, including a first module, a second module, and a third module. The first module is provided with an air-permeable zone. The second module is provided with air holes a. The third module is provided with air holes b. A solder ribbon and a solar cell are sequentially stacked on the first module. A channel S2 is formed by the air holes b and the air holes a to fix the first module to the second module. A channel Si is formed by the air holes b, the air holes a and the air-permeable zone to fix the solder ribbon and the solar cell on the first module.

Abstract: This application relates to a protective apparatus. The protective apparatus is configured to protect a to-be-welded part, the to-be-welded part includes a welding region, and the protective apparatus includes a base and a protective mechanism. The base is configured for embedding the to-be-welded part. The protective mechanism is connected to the base. The protective mechanism includes a welding hole, where the welding hole is provided corresponding to the welding region; and a surface of the protective mechanism facing the welding hole is provided with a thermally conductive coating, where the thermally conductive coating is configured to guide substances formed in welding the to-be-welded part to slide down along the surface of the thermally conductive coating. The protective apparatus in this application can improve welding quality of the welding region, thereby enhancing performance of the to-be-welded part.

Abstract: Systems and methods are provided for inspection. One embodiment is a method for automatically measuring a hole. The method includes driving a fiber optic probe into the hole, determining a profile by scanning the hole via the fiber optic probe, and determining whether an interface gap exists at the hole based on the profile.

Abstract: A screw tightening system includes an actuator including a driver bit that rotationally drives a screw and a motor coupled with driver bit, and a controller that controls actuator. Controller includes an acquirer that acquires torque values of a torque generated in a motor, a calculator that calculates a standard deviation of the torque values in a temporary tightening period, and a determiner that determines that there is an abnormality when a ratio of the standard deviation to a reference standard deviation exceeds a first threshold value.

Abstract: A compressed fluid supply system comprises: a pressure adjustment unit for adjusting the pressure of a compressed fluid supplied from a fluid supply source to support members supporting a movable member so that the movable member can be driven through the use of the compressed fluid; a drive force acquisition unit for acquiring a drive force of a motor for driving the movable member; and a pressure control unit for adjusting the pressure of the compressed fluid supplied to the support members by controlling the pressure adjustment unit on the basis of the drive force of the motor.

Abstract: A steady rest has working and right-hand cover plates and a central plate sandwiched there between. The working cover plate has upper and lower guide tracks and track engagement springs that are received within cavities. The central plate is movably disposed between the working and right-hand cover plates. The central plate slidably engages upper and lower gripping arms that are movable relative to the working cover plate between a clamped position and a retracted position. Tapered rails and rail engagement springs are disposed in a rail recess of the working cover plate. The rails are movable relative to each other to finely and precisely adjust a position at which the workpiece is clamped and moved horizontally or vertically when the gripping arms are in the clamped position. The track and rail engagement springs share common mechanical properties for ready interchange, thereby alleviating inventory concerns.

Abstract: Recessed spaces are formed along a circumferential direction on the front side and the rear side of an axial direction of a cutting blade. At the time of cutting a workpiece, a cutting liquid supplied from a cutting liquid supply nozzle to an outer circumferential part of the cutting blade enters the recessed spaces and is splashed back by an outer circumferential surface, to be supplied to a cutting region of an upper surface of the workpiece. As a result, the cutting liquid can efficiently be made to flow toward and collide against burrs of electrodes, the burrs being generated by cutting, so that the burrs can be separated and removed from the upper surface of the workpiece.

Abstract: A magazine comprises: a conveyer unit that has a plurality of tool pots that each hold a tool detachably and conveys the plurality of tool pots; and a magazine cover that accommodates the conveyer unit. The conveyer unit allows a tool to be manually attached to and detached from a tool pot conveyed to a predetermined position. The magazine further comprises a display unit that is provided inside the magazine cover and displays a first design. The first design represents an arc or circumference for a diameter corresponding to a maximum diameter of a tool which can be held by the tool pot.