Abstract: A waste disposal system for receiving pharmaceutical waste material including at least one of a solid phase pharmaceutical waste material and a liquid phase pharmaceutical waste material is provided. The waste receiver includes a receiver body defining an opening. The waster receiver further includes an inner surface defining a container volume in fluid communication with the opening, and an outer surface opposite the inner surface. The outer surface defines a lock passageway separate from the opening. The system further includes a bracket adapted to be secured to a fixed surface and a locking assembly coupled to the bracket and adapted to releasably secure the waste receiver to the fixed surface. The locking assembly includes a lock housing sized to be removably positioned at least partially within the lock passageway.

Abstract: A method may include determining a first dry mass flow rate of a wet paper material stream based on a first amount of contaminants, a first moisture content, and a first wet mass flow rate of the wet paper material stream, determining a second dry mass flow rate of a wet plastic material stream based on a second amount of contaminants, a second moisture content, and a second wet mass flow rate of the wet plastic material stream, calculating, using the first dry mass flow rate and the second dry mass flow rate, a paper/plastic ratio of a combined stream of the paper material stream and the plastic material stream, and adjusting, a flow rate of paper into the paper material stream and a flow rate of plastic into the plastic material stream such that the calculated paper/plastic ratio of the combined stream equals a target paper/plastic ratio.

Abstract: An aluminum plate manufacturing method capable of achieving an enhancement in productivity through a reduction in the number of processes and a reduction in processing time is disclosed. In the aluminum plate manufacturing method, a plate is rolled after being extruded to a desired thickness. Accordingly, it is possible to reduce the number of processes and a processing time and, as such, achieving an enhancement in productivity, as compared to a conventional manufacturing process using only rolling.

Abstract: A method of, and apparatus for, handling components for a sheet extrusion system including the steps of: obtaining a carriage configured to support different components each making up a part of a sheet extrusion system; placing a first of the different components in a supported staging position on the carriage; performing an operation on the first of the different components in the supported staging position to at least one of: a) transport the first of the different components; b) perform a maintenance step on the first of the different components; c) repair the first of the different components; or d) set the first of the different components up for installation; separating the first of the different components from the supported staging position on the carriage; and reconfiguring the carriage to maintain a second of the different components, that is different in configuration than the first of the different components, in a supported staging position on the carriage.

Abstract: An aluminum plate coiling device capable of coiling an extruded and rolled aluminum plate without generating distortion or deformation of the aluminum plate is disclosed. The aluminum plate coiling device has a simple structure, thereby being capable of achieving a reduction in installation space and a reduction in installation cost.

Abstract: A bending method utilizes a die including a V-groove at an upper part thereof, and a punch including a first surface and a second surface at a workpiece pressing portion. In a state of being mounted on an upper table of a press brake, the first surface is parallel to a first groove wall surface of the die mounted on a lower table. An angle formed between the second surface and a perpendicular plane is different from an angle formed between a second groove wall surface and the perpendicular plane. A plate-shaped workpiece placed on the die is bent in a state of being sandwiched between the first groove wall surface and the first surface.

Abstract: A method of manufacturing a rectangular battery includes: ironing the blank thereby forming an interim cup including an interim bottom whose area is larger than a bottom plate of the rectangular battery can, an inclined wall tilting upwardly formed continuously from each longitudinal end of the interim bottom, a short side wall formed continuously from the inclined wall, and a long side wall formed continuously from a curved corner formed on each lateral end of the interim bottom; deforming the interim cup such that each boundary between the interim bottom and the inclined wall is displaced toward a longitudinal end of the bottom plate of the rectangular battery can, and a width of the interim bottom is adjusted to a width of the bottom plate of the rectangular battery can; and ironing the short side and long side walls to reduce thicknesses of the short side and long side walls.

Abstract: A press forming method for suppressing wall camber of a side wall portion due to springback of a press-formed product including a top portion, the side wall portion and a flange portion includes: a first forming step of press-forming a preformed part including a flange portion having height continuously changed in an axial direction to have a concave shape, a convex shape or a concavo-convex shape more largely than a target shape of the press-formed product in a height direction to provide a height difference; and a second forming step of press-forming the preformed part into the press-formed product having the target shape to reduce the height difference of the flange portion of the preformed part.

Abstract: A die support mechanism includes: a die holding member including a slit horizontally passing through the die holding member, wherein a lower side from the slit forms a die holding base configured to hold a blanking die having a punch hole, an upper side from the slit forms a ceiling portion having a ceiling hole concentric with the punch hole, a part of a sheet metal inserted in the slit is punched out as a blank by a blanking punch, and the ceiling portion separates the sheet metal from the blanking punch; a support base configured to horizontally slidably support the die holding member; and a guide portion formed on an inner surface of the ceiling hole and configured to come into sliding contact with the blanking punch and to slide the die holding member to a position where the punch hole is centered on the blanking punch.

Abstract: A crimper analyzer system is disclosed. The crimper analyzer system also includes a network interface. The crimper analyzer system also includes a memory storage. The crimper analyzer system also includes one or more processors configured to: receive hose specifications and fitting specifications from the network interface, generate crimp parameters based on the received hose specifications and crimp operation data, obtain additional crimp operation data for a hose assembly operation, update the crimp operation data with the additional crimp operation data and store in the updated crimp operation data in the memory storage, and generate a unique assembly identification (UAID) for the hose assembly operation subsequent to the hose assembly operation.

Abstract: A diameter-expanding tool head and a diameter-expanding method thereof, the tool head comprises an expanding section forming convex portions and concave portions disposed at intervals on an outer peripheral surface, any one of the concave portions is formed between any two of the convex portions, each of the convex portions has a convex peak, the convex peak is a part farthest from an axis, each distance is equal, the convex peaks are connected to form a diameter-expanding surface spanning each of the concave portions. The expanding section is rotatably inserted into a channel of a body to be expanded, and is in discontinuous contact with the channel through the convex and concave portions, a diameter of at least a part of the body to be expanded is expanded to form a diameter-expanded channel, and an inner wall surface of the diameter-expanded channel is flush with the diameter-expanding surface.

Abstract: A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.

Abstract: A rebar tying robot may include a rebar tying unit, a conveying unit configured to convey the rebar tying unit, and a control unit configured to control the conveying unit. The conveying unit may include a longitudinal movement mechanism configured to move the rebar tying robot in a front-rear direction and a first three-dimensional distance sensor configured to output first point cloud data which represents a three-dimensional position of a subject in a first field of view by point clouds. The control unit may be configured to execute a first rebar extraction process in which the control unit extracts point clouds from the point clouds included in the first point cloud data and an intersection location identification process in which the control unit identifies a position where the primary rebar and the secondary rebar intersect based on the point clouds extracted in the first rebar extraction process.

Abstract: A power tool including a motor; a fastener gripping portion operatively coupled to the motor for causing movement of the fastener gripping portion between a home position and a retracted position to set a fastener; and a controller for controlling the motor wherein during a reset stage of operation, in which the fastener gripping portion is moved towards the home position, the controller is configured to decelerate the motor before the fastener gripping portion reaches the home position.

Abstract: A casting core used in the manufacture of a cast engine component for a turbine engine, the cast engine component having a first area, a second area, a fluid passage wall separating the first area and the second area, and a connecting fluid passage extending through the fluid passage wall and interconnecting the first area and the second area. The connecting fluid passage having a turn with a radius (R). The casting core having a first core and a second core. The first core and the second core being defined by a set of geometric characteristics having a first minimum equivalent diameter (D1eqmin) of the first core and a second minimum equivalent diameter (D2eqmin) of the second core. A first flexible geometry factor (FGF1) being equal to: ( D ? 1 eq ? min D ? 2 eq ? min ) ? ( R D ? 2 eq ? min ) .

Abstract: Method for forming a molded part and the molded part. The method includes applying a thermal barrier coating (TBC) system to a sand core; inserting the TBC coated sand core into a mold; and forming a cast iron part in the mold with the inserted TBC coated sand core.

Abstract: The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

Abstract: A system and method for filling a mold with molten aluminum includes a molten metal pump, a vessel configured to contain molten metal, a mold for receiving molten metal, and a conduit between the vessel and the mold. Molten metal is pumped in the vessel until it reaches a level at which it flows through the conduit and into the mold. The flow of molten metal into the mold is stabilized to maintain a level of molten metal in the mold. A skin of solid metal forms between the mold and the conduit, at which time the pumping of molten metal can cease. The mold with solid metal in it can be moved.

Abstract: The invention relates to a device and method for improving the quality of automated machine-based casting methods by identification of the cast parts by pattern recognition and structure recognition, said method having the following features: Once the desired casting moulds (12) have been filled and monitored by means of sensors and cameras, and once the casting mould has been broken open, each finished cast part is identified by pattern recognition and pattern tracking, any flashing is removed, and the cast parts are fed to a jet cleaning process.

Abstract: Aspects of the disclosure are directed to methods and/or apparatuses involving the formation of pore-free or nearly pore-free liquid droplets. As may be implemented in accordance with one or more embodiments, liquid droplets including metal are formed having pores within the liquid droplets. This may involve, for example, atomizing liquid metal with a gas and forming the droplets having pores. The pores are then driven out of the liquid droplets by heating the liquid droplets from a first state in which an outer surface of the droplets has a lower temperature than an inner region thereof, to a second state in which the outer surface has a higher temperature than the inner region.

Abstract: In accordance with some embodiments herein, a method for producing a powder from a material is provided. The material may be melted in a melt furnace to produce a melted material. The melted material may be conducted through a melt nozzle to emit, from the melt nozzle, a melt flow traveling through an atomizing chamber. A plurality of gas flows may be emitted through a plurality of orifices of a gas flow production device towards the melt flow. Collision of at least some of the plurality of gas flows with the melt flow in the atomizing chamber disintegrate the melt flow to produce the powder.

Abstract: A method for producing metal or metal alloy particles may include: mixing a mixture comprising: (a) a metal or a metal alloy, (b) a carrier fluid, and optionally (c) an emulsion stabilizer at a temperature at or greater than a melting point of the metal or the metal alloy to create a dispersion of molten droplets of the metal or the metal alloy dispersed in the carrier fluid; cooling the mixture to below the melting point of the metal or the metal alloy to form metal or metal alloy particles; and separating the metal or metal alloy particles from the carrier fluid, wherein the metal or metal alloy particles comprise the metal or the metal alloy and the emulsion stabilizer, if included.

Abstract: Provided is a method for producing silver nanowires, the method capable of easily producing thin silver nanowires. The method including a step of adding a raw material solution (A) including silver ions and a solvent (a) to a raw material solution and (B) including halide ions and a solvent (b), the halide ions including substantially no chloride ions, and 97.0 mol % or more of the halide ions being bromide ions, so as to include a period where a value of (a rate of addition of the raw material solution (A) in terms of a rate of addition of silver ions [mol/min])/(an amount of halide ions in the raw material solution (B) [mol])×100 is 6.0 [min?1] or less, thereby forming silver nanowires in an obtained mixed solution substantially containing no chloride ions.

Abstract: Methods of additively manufacturing a manufactured component and systems that perform the methods. The methods include determining an energy application parameter at an addition location on a previously formed portion of the manufactured component. The methods also include supplying a feedstock material to the addition location. The methods further include delivering, from an energy source and to the addition location, an amount of energy sufficient to form a melt pool of the feedstock material at the addition location. The amount of energy is based, at least in part, on the energy application parameter. The methods also include consolidating the melt pool with a previously formed portion to form an additional portion of the manufactured component. The delivering includes delivering the amount of energy to the addition location along an axis of incidence, and the energy application parameter includes a directionality parameter that is based on the axis of incidence.

Abstract: A method of monitoring a spot quality of an electron beam includes directing the electron beam to a first measurement point in a powder layer a plurality of times, adjusting a focus offset of the electron beam each of the plurality of times the electron beam is directed to the first measurement point, measuring x-ray emissions from the first measurement point each of the plurality of times the electron beam is directed to the first measurement point, and determining a drift in a focus or an intensity of the electron beam based on the measured x-ray emissions.

Abstract: The present disclosure provides various apparatuses, systems, software, and methods for three-dimensional (3D) printing. The disclosure delineates various optical components of the 3D printing system, their usage, and their optional calibration. The disclosure delineates calibration of one or more components of the 3D printer.

Abstract: A method for discharging particulate building material in a 3D printer to be applied more evenly. A building material curtain of particulate building material and/or an accumulation of building material is optically monitored in a work step of discharging the particulate building material in an area of the building material curtain between the applicator and the construction site and/or a point of impact of the particulate building material on the construction site at which the building material accumulation is created. An image is generated and/or at least one dimension is determined to be compared with an associated reference image and/or a specified reference value. If any deviation is detected, at least one discharge parameter for the discharge of the particulate construction materials is changed.

Abstract: Method for manufacturing an aeronautical part by additive manufacturing, the part to be manufactured extending around a central axis and comprising at least two walls angled with respect to one another and connected to one another by means of at least one connection section comprised in a connection plane perpendicular to the central axis, the method comprising: providing a digital model of the part to be manufactured, orienting the digital model with respect to a vertical construction direction of the part so that the central axis of the part has an angle ? of between 0.1° and 1°; and manufacturing the part by additive manufacturing from the digital model obtained in the orientation step.

Abstract: A high-throughput 3D printing system for preparing multi-component, small sized samples, includes a raw material supply module, providing a various kinds of metal powders for printing small sized samples; the first mixer module, mixing the metal powders obtained from the raw material supply module to generate the first blended metal powders; the second mixer module, mixing the first mixed metal powders, in order to generate the second blended metal powders for printing small sized samples; the first printing module, printing the secondary blended metal powder into a small-sized sample; a control module, controlling other functional modules of the high-throughput 3D printing system for generating small-size samples.

Abstract: Provided is a machine tool and a method for controlling the machine tool capable of precisely determine a success or a failure of a cut-off. An NC lathe performs a cut-off of a workpiece gripped by a first spindle and a second spindle and then performs a separation movement of the second spindle in a direction separating from the first spindle. The NC lathe includes a movement controlling unit adapted to perform a stop control of the first spindle at a command position of the first spindle during the separation movement of the second spindle and a cut-off success or failure determining unit adapted to monitor a positional deviation of the first spindle during the separation movement of the second spindle to determine a success or a failure of the cut-off, the positional deviation being a difference between the command position and an actual position of the first spindle.

Abstract: Provided is a clamping tool for attaching a cutting insert to a holder or detaching a cutting insert from a holder, the cutting insert including a head portion having a circular cutting edge and a shaft portion, the clamping tool including: a first jaw portion configured to be locked to the holder; and an operation lever configured to be connected to the first jaw portion, in which the first jaw portion has a locking portion configured to be locked to the holder, and a first pressing portion configured to push the head portion downward and fit the shaft portion into a shaft hole portion of the holder when the operation lever is rotationally moved in a first direction using the locking portion as a fulcrum.

Abstract: A cutting tool including a substrate and a coating film disposed on the substrate, wherein the cutting tool includes: a rake face, a flank face contiguous to the rake face; and a cutting edge region composed of a boundary part between the rake face and the flank face, wherein the coating film includes a TiSiCN layer, the TiSiCN layer has: a first TiSiCN layer positioned in the rake face; and a second TiSiCN layer positioned in the cutting edge region, the first TiSiCN layer has a composition of Ti(1-Xr)SiXrCN, the second TiSiCN layer has a composition of Ti(1-Xe)SiXeCN, and the Xr and the Xe each represent 0.010 or more and 0.100 or less, and satisfy a relationship of Xr?Xe?0.003.

Abstract: An insert may include a first surface, a second surface, a third surface located on a side opposite to the first surface, a cutting edge located on a ridgeline between the first surface and the second surface, and a convex part located more inside the first surface than the cutting edge. The first surface may include a groove extending from a first end part closest to the cutting edge to a second end part. The groove may include an opening located in the first surface, and a bottom surface. An imaginary plane which is orthogonal to a central axis and is located between the first surface and the third surface may be a reference plane, the bottom surface may include an inclined portion inclined so as to come closer to the reference plane as going toward the first end part in a breaker region.

Abstract: A double sided V-shaped cutting insert includes insert front and back surfaces and a peripheral surface extending therebetween. The peripheral surface has a forward surface, a first planar converging surface, and a first rake surface extending between the forward surface and the first converging surface. A second planar converging surface forms a convergence angle ?, 30°???45° with the first converging surface. A second rake surface extends between the forward surface and the second converging surface. In a view perpendicular to the insert front surface, the cutting insert exhibits mirror symmetry about a bisector plane passing between the first and second rake surfaces. The first and second rake surfaces each face away from the bisector plane. The first rake surface tends towards the bisector plane more than the first converging surface, and the second rake surface tends towards the bisector plane more than the second converging surface.

Abstract: A drill guide for drilling a bore into a workpiece having a curved surface. The drill guide comprises a drill block body having a first side portion and a second side portion opposed to the first side portion. The drill block body defines a throughbore between the first side portion and the second side portion. The throughbore extends along a throughbore axis. A first leg protrudes from the first side portion of the drill block body. A second leg protrudes from the second side portion of the drill block body. A first wing is hingedly connected to the first leg.

Abstract: A tip that is capable of preventing chip clogging during machining, and a cutting tool equipped with this tip, are provided. The tip 30 includes a first surface 310 that is a portion making contact with a body 20 of the cutting tool 10 when the tip is attached to the body 20, a second surface 320 located on the opposite side from the first surface 310, a leading end part 330 connecting the first surface 310 and the second surface 320 and provided with a cutting edge 331, and a trailing end part 340 located on the opposite side from the leading end part 330. The second surface 320 is formed with a recessed part 321 receding toward the first surface 310 in a portion closer to the trailing end part 340.

Abstract: The present invention relates to a step drill bit, characterized in that the step drill bit has a hole processing portion and at least two flutes extending on the hole processing portion, the hole processing portion comprising step sections, each step section and the at least two flutes forming at least two cutting edges distributed in a circumferential direction of the step section, wherein, the at least two cutting edges on at least one of the step sections at least comprise a first cutting edge and a second cutting edge, wherein the first cutting edge and the second cutting edge are respectively constructed in at least two-segment style, and therefore respectively include at least two cutting edge segments, wherein the first cutting edge and the second cutting edge are at least partially different from each other in the structure of their cutting edge segments, or one cutting edge of the first cutting edge and the second cutting edge is formed in one-segment style, while the other cutting edge is formed in

Abstract: Cutting tool for the rotary machining of workpieces, in particular a twist drill, with a cutting tip which has at least one main cutting edge and at least one free surface, wherein a flank face adjoins the main cutting edge radially to the outside, and wherein a flank angle of the flank face increases in a radially outward direction.

Abstract: A chamfer tool includes a main body, a driving shaft and a plurality of milling members. The main body, which rotates along an axis, has an inner surface and an outer surface located on opposite sides thereof; wherein the main body further has a plurality of mounting portions, each of which is connected to the inner surface and outer surface. The driving shaft is fixed to the main body to drive the main body to rotate. Each of the milling members has a first blade and a second blade, wherein the milling members are mounted on the mounting portions of the main body with the first blades protruding from the outer surface of the main body and the second blades protruding from the inner surface of the main body.

Abstract: A face milling cutter includes a tool body, several primary cutting inserts mounted in a respective primary insert seat, a reference insert mounted in a reference insert seat, and a finishing insert mounted in a finishing insert seat. The reference and primary cutting inserts are configured to be detachably mounted in their insert seats in a fixed position as seen in the axial direction of the tool body. The reference insert seat is arranged more forwardly in the tool body than the primary insert seats such that the reference insert projects forwards from the tool body beyond the axially foremost point of each primary cutting insert. The position of the finishing insert is adjustable by an adjustment mechanism to allow it to be positioned with its axially foremost point substantially in level with or more forwardly than the axially foremost point of the reference insert.

Abstract: A milling tool includes a tool head and an exchangeable cutter carrier. The tool head can be coupled to a tool holder, and the cutter carrier includes a plurality of cutters distributed around its circumference, each having a front facing face cutter and a peripheral cutter extending at an angle thereto. In this case, the cutter carrier, including the cutters, has a thickness of at most ten mm, in particular at most six mm, for a diameter of at least fifty mm.

Abstract: Stabilized cutting tool assemblies. A cutting tool assembly for use with a reference surface includes a tool holder having a rotational axis. The tool holder is arranged for attachment to a drive source arranged to rotate the tool holder and move the tool holder relative to a reference surface. The cutting tool assembly includes a rotatable cutting tool coupled to the tool holder. The cutting tool includes a cutting surface and has a first portion and a second portion. The first portion is disposed adjacent the tool holder. The cutting tool assembly includes a stabilizer coupled to the cutting tool adjacent the second portion. The stabilizer has a bearing surface. The bearing surface is positioned on the second portion to abut the reference surface and to stabilize the cutting tool when the drive source moves the tool holder and the cutting tool to a position adjacent the reference surface.

Abstract: The invention relates to a peeling wheel for manufacturing a toothing on a gear wheel by skiving. The peeling wheel includes a toothing, which is formed by a plurality of equally shaped cutting teeth arranged and distributed around the rotational axis of the peeling wheel at a first pitch and at least one deviating cutting tooth, whose shape is different from the shape of the equally shaped cutting teeth. The cutting teeth include cutting edges with which they come into chip removing engagement with the material of the gear wheel during the skiving processing. In order to be able to produce toothings with such a peeling wheel with increased freedom in the design, the invention proposes that the deviating cutting tooth is arranged outside of the first pitch (p). The invention also relates to a method for producing a toothing on a gear wheel by skiving using a peeling wheel.

Abstract: A WEDM machine tool for machining a disc-shaped porous part, comprises a workbench, a central stand column, a rotary device, a plurality of wire rack assemblies and a wire feeding mechanism comprising a bottom plate, a wire rack arranged on the bottom plate and a radial driving mechanism for driving the wire rack to move in a radial direction on the bottom plate; and the wire rack is a “[”-shaped rack with an opening oriented to the central stand column; and the wire feeding mechanism comprises a first guide wheel assembly arranged on the workbench to guide an electrode wire into and out of a wire winding barrel, second guide wheel assemblies arranged on the radial driving mechanism and the wire rack, a third guide wheel assembly arranged on the central stand column and a fourth guide wheel assembly arranged between two wire rack assemblies.

Abstract: A method of using a processing oven may include disposing at least one substrate in a chamber of the oven and activating a lamp assembly disposed above them to increase their temperature to a first temperature. A chemical vapor may be admitted into the chamber above the at least one substrate and an inert gas may be admitted into the chamber below the at least one substrate. The temperature of the at least one substrate may then be increased to a second temperature higher than the first temperature and then cooled down.

Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example welding accessory includes a first port to receive input power via a first weld cable, a power converter to convert the input power to output power, a second port to output the input power via a second weld cable, and one or more output switches to selectively divert the input power from the power converter to the second port.

Abstract: A quick release mounting assembly or connector assembly for connecting a wire feeder to a robotic welding system is disclosed. The connector assembly includes an adapter plate configured to mount to a robotic welder of the robotic welding system, a feeder plate configured to couple to a wire feeder of the robotic welding system, and a clamping plate mounted to the adapter plate and configured to clamp the feeder plate to the adapter plate. The feeder plate can be positioned and clamped in place by the clamping plate when the clamping plate is at least partially disposed within a clamping zone.

Abstract: A welding or metal additive manufacturing torch includes a nozzle and a shielding gas diffuser located within the nozzle. The shielding gas diffuser has a plurality of shielding gas discharge holes spaced annularly around the shielding gas diffuser. A contact tip extends from the shielding gas diffuser distal of the shielding gas discharge holes. An annular screen extends radially between the nozzle and one or both of the contact tip and the shielding gas diffuser and is located distal of the shielding gas discharge holes. The annular screen is electrically insulated from at least one of the shielding gas diffuser and the nozzle.

Abstract: A friction stir welding attachment includes a body configured to be attached to a spindle supported by a spindle head of a machine tool, a metalworking shaft rotatably supported by the body wherein a welding tool is attachable to the metalworking shaft, a plurality of air motors provided in the body, and a transmission mechanism configured to transmit a rotation of each of the plurality of air motors to the metalworking shaft. A fixing portion is provided to supply external air to the plurality of air motors. A drive air distributor is provided to distribute drive air to the air motors. A rotation sensor for detecting a rotation state is provided to the metalworking shaft.

Abstract: A friction stir welding tool for a machine tool having a frame and a spindle rotatable relative to the frame. The friction stir welding tool includes a pin, a shoulder, and a drive shaft connectable to the spindle to set the pin and the shoulder in rotational motion about a rotation axis, wherein the shoulder is rotatable relative to the pin about the rotation axis. To obtain different speeds of the pin and shoulder in a simple and robust manner, a planetary transmission having a ring gear, a planet carrier, and a sun gear is connected to the drive shaft, pin, and shoulder. The pin or the shoulder is connected to the planet carrier so that the pin and shoulder are set in rotation about the rotation axis at different rotational speeds, but in the same rotation direction, by driving the drive shaft by the spindle.