Abstract: The present disclosure is a food injection needle cleaning system and method. The food injection needle cleaning system comprises a cleaning fluid tank coupled to high-pressure pump configured to pump cleaning fluid through at least one inlet, a channel, and at least one outlet of a food injection needle to dislodge and remove debris as well as sanitize the needle. The present disclosure comprises a high-pressure chamber configured to secure the food injection needle and seal around the needle such that fluid enters the needle through an inlet of the high-pressure chamber and exits the needle through a waste line.

Abstract: The invention relates to a paw type quick guiding dredging device for household sewer pipe which includes a feeding air guiding tube, a micro air pump and a dredging member. One end of the feeding air guiding tube is a closed structure, and the other end is provided with a connecting sleeve. The dredging member includes an extended air guiding tube and a spherical airbag. One end of the extended air guiding tube is connected with the connecting sleeve. The inlet end of the spherical airbag is in communication with the other end of the extended air guiding tube. The outer surface of the spherical airbag is provided with a friction member which is used to clean the inner wall of sewage pipe. One end of the feeding air guiding tube close to the connecting sleeve is further provided with a sliding member for pulling the spherical airbag. The outer surface of the extended air guiding tube is hinged with a hooking member for hooking the blockage in the sewage pipe.

Abstract: A fume cupboard, of the type comprising a framework with two front uprights (2a,2b), two rear uprights (3a,3b), a rear panel (11), two side panels (6,7), an upper panel (8) and a sash (4) consisting of a frame (12) and at least one panel (13) for closing an inner chamber (10) of said fume cupboard (1). The fume cupboard of the invention comprises a transmission system (14) for transmission of the vertical movements of said sash (4) located inside the abovementioned front uprights (2a,2b), or inside said front uprights (2a,2b) and said rear uprights (3a,3b).

Abstract: A method and plant for waste disposal are provided. A recirculating arrangement recirculates leachates generated by the processes of waste treatment into the plant itself, namely into a biofilter. The leachates are treated without need for providing a dedicated arrangement for purification and disposal. In addition, the recirculated leachates introduced into the biofilter represents an additional irrigation system for the filtering material of the biofilter and contributes to maintain its humidity advantageously high. Preferably, the leachates are introduced into the biofilter at an intermediate height of the biofiltering material bed, so as to obtain a kind of “submerged irrigation” of the biofilter. More preferably, the leachates are introduced into the biofilter as homogeneously and dispersedly as possible, so as to obtain a kind of “micro-irrigation” system for the biofilter.

Abstract: An apparatus (2) for flatting, punching or stamping a material (40) introduced into the apparatus (2), said apparatus (2) comprising a first cylinder (14) provided with an outer layer configured for flatting, punching or stamping the material (40); a back-pressure cylinder (16) extending parallel to the first cylinder (14) and an adjustment mechanism (22, 22?, 28, 28?, 34, 34?, 36) for adjusting the distance between the first cylinder (14) and the back-pressure cylinder (16). The adjustment mechanism (22, 22?, 28, 28?, 34, 34?, 36) comprises a first contact member (22) and preferably a second contact member (22?) brought into contact with the bottom portion (circumference) of the first cylinder (14). The contact member(s) (22, 22?) are mounted on a structure (34, 34?) being movably mounted relative to the back-pressure cylinder (16).

Abstract: A hand-held tool for straightening tubing such as brake fluid lines in vehicles, the tool provides a housing having an outer covering, internally thereof, a series of sets of rollers, that are adjustable radially, supported by end frames, and intermediate the rollers and the outer covering is an adjuster ring, shiftable longitudinally within the housing, operatively associated with the rollers, such that when the adjuster ring is pulled outwardly, longitudinally, from the tool housing, the rollers shift radially outwardly, for accommodating larger tubing, and when the adjuster ring is pushed inwardly of the housing, the rollers are forced inwardly against smaller diameter tubing, in preparation for its straightening. A sector of the tool, usually along a quadrant, is opened from one end to the other of the tool, so as to allow the tool to be applied to the tubing to be straightened, anywhere along its length, and not only at its ends.

Abstract: A controller alters a cycle time of a die arrangement, configured to hot stamp metal into components and having an active cooling system, based on an amount of heat transferred from the components to the active cooling system such that a grain structure of the components transitions from an austenitic state to a martensitic state.

Abstract: A unitary forward mounting assembly for a bodymaker includes a unitary forward mounting body with a cradle portion, a first support arm portion and a second support arm portion. The cradle portion has a forward side, a rear side, a right side, and a left side. The first support arm portion is disposed at the cradle portion right side. The second support arm portion is disposed at the cradle portion left side.

Abstract: A can (1) is provided with a mouth part (4), a shoulder part (3), and a body part (2). The shoulder part (3) of the can (1) is decorated, without damaging the shoulder part (3), by forming at least one of a recess and a protrusion by means of a rotating process in which the shoulder part (3) is held between a receiver (11a), having a concave-convex shape, of an inner roll (11) and an outer roll (12) having a convex-concave shape corresponding to the concave-convex shape of the receiver (11a) of the inner roll (11).

Abstract: A spring manufacturing machine comprises a coiling mandrel fixed to a wall and protruding from the wall, and a cutting device that has a slider movable in a direction inclined with respect to the axis of the coiling mandrel and a blade attached to the slider, and cuts a bent wire in cooperation with the coiling mandrel. Preferably, the coiling mandrel protrudes orthogonally to the wall, and the cutting device is attached to the wall in a posture inclined with respect to the wall.

Abstract: A braided vaso-occlusive member formed out of first plurality of filaments interwoven with a second plurality of filaments, wherein filaments of the first plurality are helically wound in a first rotational direction along an elongate axis of the braided member, and filaments of the second plurality are wound in a second rotational direction opposite the first rotational direction, such that filaments of the first plurality cross over and/or under filaments of the second plurality at each of a plurality cross-over locations axially spaced along the elongate axis of the braided member, wherein at each cross-over location, the filaments of the first plurality cross over at least two consecutive filaments of the second plurality, then cross under only a single filament of the second plurality, and then cross over at least two additional consecutive filaments of the second plurality.

Abstract: A device and the method serve to set a connecting element, in particular a press-in bolt, on a workpiece. By means of a setting unit, a hole punching operation for introducing a hole and, at the same time, a hole-forming operation are carried out, in which an edge of the hole is deep-drawn using an embossing sleeve and a collar is formed. In a second stage, the connecting element is pressed in, the punching and hole-forming operation and the pressing taking place within the same axial axis without the workpiece being laterally displaced relative to the device.

Abstract: A separator for rivet elements, having an entrance and an exit for the rivet elements to be separated and having a guide extending along a center line from the entrance to the exit, through which the rivet elements can be delivered along a delivery direction, wherein the separator comprises a first blocking element, especially a first pin, and a second blocking element spaced apart from the first blocking element along the center line, wherein the first blocking element and the second blocking element are movable independently of each other between a blocking position blocking the guide for a rivet element and a releasing position releasing the guide for a rivet element. It is proposed that at least one blocking element is arranged such that the direction of movement of the blocking element or elements is oriented at a slant to the delivery direction of the rivet elements.

Abstract: A foundry mix includes a major amount of a foundry aggregate and an effective binding amount of a binder system. The binder system cures in the presence of sulfur dioxide and a free radical initiator. The binder system may include (1) 10 to 70 parts by weight of an epoxy novolac resin; (2) 0.5 to 10 parts by weight of resorcinol; (3) 20 to 70 parts by weight of a monomeric or polymeric acrylate; and (4) an effective amount of a free radical initiator. Notably, (1), (2), (3) and (4) are separate components or mixed with another of said components, provided (4) is not mixed with (3), where said parts by weight are based upon 100 parts of the binder system.

Abstract: An apparatus for producing metal bars and ingots with quality monitoring, includes at least one mold essentially constituted by a body that forms at least one cavity for forming an ingot or a bar and by at least one cover that is detachably associated with the body in order to upwardly close the cavity. The apparatus has at least one passage, provided on the body of the mold, on the cover or on both, for connecting the inside of the cavity to the outside even when the cover is associated with the body in order to upwardly close the cavity. The apparatus according to the invention also has the particularity that it includes a means for taking a sample of the melted material contained in a mold, constituted essentially by a body that forms at least one cavity for forming an ingot or a bar and by at least one cover that is detachably associated with the body in order to upwardly close the cavity.

Abstract: A casting mold material used when casting a metal material includes, as a composition: Cr within a range of 0.3 mass % or more and 0.7 mass % or less; Zr within a range of 0.025 mass % or more and 0.15 mass % or less; Sn within a range of 0.005 mass % or more and 0.04 mass % or less; P within a range of 0.005 mass % or more and 0.03 mass % or less; and a balance consisting of Cu and inevitable impurities, in which a Zr content [Zr] (mass %) and a P content [P] (mass %) have a relationship of [Zr]/[P]?5, and a Sn content [Sn] (mass %) and a P content [P] (mass %) have a relationship of [Sn]/[P]?5.

Abstract: Provided is a roller assembly which includes: a supporter configured to rotatably support a roller disposed in a movement path of a to-be-treated material; a fixed shaft attached to a rear surface of the supporter and having at least a stretchable portion; a body attached to the rear surface side of the supporter so as to surround the fixed shaft; and a plunger attached so as to connect the body and the fixed shaft and formed so that at least a portion thereof advances and retreats with respect to the movement path, a casting device provided with the roller assembly, and a roller separating method, wherein the roller assembly is capable of separating the roller from the movement path during emergency.

Abstract: Disclosed herein are embodiments of methods, devices, and assemblies for processing feedstock materials using microwave plasma processing. Specifically, the feedstock materials disclosed herein pertains to scrap materials, dehydrogenated or non-hydrogenated feed material, and recycled used powder. Microwave plasma processing can be used to spheroidize and remove contaminants. Advantageously, microwave plasma processed feedstock can be used in various applications such as additive manufacturing or powdered metallurgy (PM) applications that require high powder flowability.

Abstract: A method for surface treatment of a metal material in a powder state is provided, the method including obtaining a powder formed from a plurality of particles of the metal material to be treated; and subjecting the powder to an ion implantation process by directing a beam of singly-charged or multi-charged ions towards an outer surface of the particles, the beam being produced by a source of singly-charged or multi-charged ions, whereby the particles have an overall spherical shape with a radius (R). There is also provided a material in a powder state formed from a plurality of particles having a ceramic outer layer and a metal core, the particles having an overall spherical shape.

Abstract: A method for producing a green compact, the method including a charging step of charging a raw-material powder including iron-based particles into a cavity formed by a lower punch and a die that are arranged to be movable relative to each other, a pressurizing step of pressurizing the raw-material powder charged in the cavity by the lower punch and an upper punch in order to form a green compact, the upper punch being arranged to face the lower punch, and a drawing step of drawing the green compact from the cavity by a relative movement between the green compact and the die. The drawing step is conducted while vibrations are applied to the green compact for at least part of the period from the time just before the relative movement starts to the time at which the relative movement completes.

Abstract: A method of 3D printing an item, includes printing part of the item in three dimensions on a substrate, reorienting the part with respect to holding means that holds the part or substrate, and printing a further part of the item in three dimensions on the first mentioned part.

Abstract: A system for supporting an object created by additive manufacturing comprising the object, and a frame comprising at least one strut having a length and forming a shape at least partially surrounding the object, a runner having first and second ends, the first end integrally connected to a strut and the second end removably attached to the object.

Abstract: A curable resin or adhesive composition includes at least one monomer, a photoinitiator capable of initiating polymerization of the monomer when exposed to light, and at least one energy converting material, preferably a phosphor, capable of producing light when exposed to radiation (typically X-rays). The material is particularly suitable for bonding components at ambient temperature in situations where the bond joint is not accessible to an external light source.

Abstract: Building cylinders, for use in machines for the layer-by-layer production of 3D objects by sintering or melting powdered material by a high-energy beam, and having a main body and a piston part movable on an inner side of the main body along a cylindrical axis, are disclosed. The piston part has a base element for the growth of a 3D object, and a powder seal bearing against the inner side of the main body for sealing the powdered material. The piston part has a seal carrier on which the powder seal is mounted, and an insulator, e.g., a circumferential insulation ring, mounted on the seal carrier. The base element is mounted on the insulator and is arranged at a distance from the seal carrier and from the powder seal.

Abstract: The invention relates to a method of high-throughput hot isostatic pressing micro-synthesis for the combinatorial materials and a sleeve mould thereof. The sleeve mould (2) comprises a honeycomb-array-sleeve (3) and an upper cover (4), wherein a plurality of single cells (6) are tightly arranged inside the honeycomb-array-sleeve (3), an exhaust tube (5) is arranged on the upper cover (4), after the single cells (6) are filled with powder materials, the upper cover (4) is sealed welding on the honeycomb-array-sleeve (3), and the honeycomb-array-sleeve (3) and the upper cover (4) are both integrally produced by additive manufacturing. According to the method and the sleeve mould, the powder metallurgy hot isostatic pressing process is utilized to prepare small-size bulk combinatorial materials with multiple discrete components rapidly at one time. This method has the characteristics of high sintering speed, high compaction density, good thermal diffusivity, short production cycle and low material consumption.

Abstract: A combined ultrasonic micro-forging device and a related additive manufacturing method for improving the microstructure and mechanical properties of additive manufactured metal part. The device comprises a transducer, a pneumatic sliding table, a pneumatic sliding table connecting frame, an amplitude transformer, a tool head and a roller, wherein the transducer is provided in a transducer housing, a socket connector and a pipeline connector are provided on the transducer housing, the amplitude transformer is connected under the transducer, the tool head is connected under the transducer, the roller is located between the tool head and workpiece, and the pneumatic sliding table is connected to the transducer housing and the amplitude transformer via the pneumatic sliding table connecting frame.

Abstract: A metal-powder producing apparatus includes a spray chamber, and a plurality of spray nozzles that liquid-spray a melted metal into the spray chamber. Each of the plurality of spray nozzles includes: a liquid nozzle that allows the melted metal to flow down into the spray chamber; and a gas-jet nozzle that has a plurality of gas-jet holes arranged around the liquid nozzle and causing a gas fluid to collide with the melted metal having flowed down from the liquid nozzle.

Abstract: What is shown and described here is a device for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle, comprising: a first underfloor wheelset lathe for reprofiling wheels and brake discs of a first wheel set of a rail vehicle, and a second underfloor wheelset lathe for reprofiling wheels and brake discs of a second wheelset of a rail vehicle. In order to allow simultaneous machining of multiple wheelsets of a rail vehicle in the installed state, it is proposed that the distance between the second underfloor wheelset lathe and the first underfloor wheelset lathe be adjustable. What is shown and described here in addition is a method for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle.

Abstract: An automatic lathe includes a positioning block that positions a rod material, the rod material projecting from a main spindle contacting the positioning block, and a sensor that moves in a direction intersecting with a shaft center C direction of the main spindle to detect a cut off condition of the rod material. The positioning block includes a groove that allows movement of the sensor, and moves in the same direction as a movement direction of the sensor between a position that contacts the rod material and a position that has no contact with the rod material. The sensor moves along the path in the position that has no contact with the rod material.

Abstract: A cutting insert according to one embodiment includes: a rake face; a flank face continuous to the rake face; and a cutting edge constituted of a ridgeline between the rake face and the flank face. A coolant flow path is provided inside the cutting insert. One end portion of the coolant flow path opens in the flank face to form a coolant ejection hole. The flank face is provided with a coolant guide groove extending from the coolant ejection hole toward the cutting edge with a base end portion of the coolant guide groove being connected to the coolant ejection hole and with a front end portion of the coolant guide groove being disposed at a position close to the cutting edge relative to the base end portion.

Abstract: A cutting insert may include a base member and a coating layer thereon. The coating layer may include a first layer including a titanium compound on the base member, a second layer including alumina and an upper surface on the first layer, and a third layer including a titanium compound on the upper surface. The coating layer may include a crack at a top surface and therein. In a cross section orthogonal to the top surface, the crack may be present in the third layer and the second layer; in the third layer it may have a width of 1 ?m or more. In the upper surface it may have a width of 0.5 m or more—smaller than the width of the crack in the third layer. Another part may have a width of 0.2 m or less closer to the base member than the upper surface.

Abstract: A diamond-coated tool includes: a substrate; and a diamond layer that coats the substrate, wherein the diamond layer includes a first region that is in contact with the substrate, the first region includes a region S1 surrounded by an interface P between the substrate and the diamond layer and an imaginary plane V1 separated from the interface P by a distance of 2 ?m, and the region S1 has crystal grains grown in random directions.

Abstract: In a machine tool having a tool carrier (1) that comprises at least one receptacle (4) for a tool holder (3) for driven or stationary tools a tool change device is provided that comprises gripping means (370) for gripping the tool holder (3) at the housing (7) or at part (71) connected with the housing (7). In addition to the gripping means the tool change device comprises a device for actuating the fastening means that are configured for attachment of the tool holder at the tool carrier.

Abstract: Each jaw includes a master jaw with serrations and a top jaw, with serrations, to be fastened to a T-nut. The support groove includes a first keyway into which the key is fitted, whereas the top jaw includes a second keyway into which a tip of the key is fitted. A gap exists between the key and each of the first keyway and the second keyway. The key is inclined or twisted with respect to both the first keyway and the second keyway.

Abstract: Jigs and fixtures for aligning, guiding, and/or holding a workpiece on woodworking machinery during a woodworking operation are described, as well as methods of making, modifying, and using jigs and fixtures.

Abstract: A drilling tool has a working piece retained by a retainer mounted to a collar. The working piece includes a distal shank and a cutting section and is rotationally fixed relative to the retainer. The retainer may include an engagement protrusion positioned outward of the shank with the protrusion engaging an inner surface of the collar or the collar may include an engagement protrusion with the protrusion engaging an inner surface of the retainer to create a quasi-floating relationship between the retainer and collar. The cutting section may have a distal primary bore cutting sub-section and a proximal counterbore cutting sub-section. The collar includes a lower surface for abutment against a building member during drilling operation to halt axial movement of the tool.

Abstract: A cutting insert includes a main body including a first face, a second face, and a third face. The second face includes a rake face. Among the outer-peripheral sides of the second face, the boundary portion with the first face is a main cutting edge. When viewed from the side where the first face is disposed, the main cutting edge includes a first straight portion, a second straight portion, and a curved portion. The first straight portion is located adjacent to a reference side. The second straight portion is arranged at a distance from the first straight portion. The curved portion connects the first straight portion and the second straight portion. A first intersection angle of the first straight portion with respect to the reference side is different from a second intersection angle of the second straight portion with respect to the reference side.

Abstract: A rotary milling tool has a tool holder and a milling head releasably attached thereto. The milling head has a plurality of angularly spaced apart peripherally disposed cutting edges which form an effective cutting edge. The milling head has a head through recess opening out to the head forward and rearward surfaces. The recess includes a centering region and a driven region, the driven region being axially forward of, and non-identical to, the centering region. The driven region has at least one driven surface facing opposite a rotational direction. The centering region has at least one radially inwardly facing radial centering surface located axially rearward of, and radially outward from, the at least one driven surface. The two opposing extremities of the effective cutting edge define two parallel planes respectively between which both the at least one driven surface and the at least one radial centering surface are disposed.

Abstract: A hardware fastener with a movable threaded element suspended within a cavity formed in a body. The movable threaded element has an internal surface with threads for cooperating with a threaded fastener. The movable threaded element is suspended in the cavity by the one or more spring-like members such that an area, A, of reduced stiffness is created in the cavity proximate the movable threaded element, thereby allowing the movable threaded element to move a predetermined distance within the cavity when torque is applied to the threaded fastener. The one or more spring-like members store elastic potential energy to prevent the loss of pretension of the threaded fastener that can be caused by heat or vibration. The invention also eliminates the need for a torque wrench when tightening the threaded fastener to a specified torque value.

Abstract: Broaching tool comprising a cutting insert having a cutting edge and a holder for holding the cutting insert. The holder has a clamping region and a holding region, wherein the holding region comprises, at its end facing away from the clamping region, a seat for the cutting insert, which is configured and arranged such that, when the cutting insert is mounted in the seat, its cutting edge projects beyond the circumferential surface of the holding region. The holding region furthermore comprises, on its circumferential surface, a support for the cutting insert. A coolant channel extends into the inside of the holder, which coolant channel comprises two exit openings which, as seen in the circumferential direction, are arranged laterally adjacent to the support and/or in lateral surfaces of the support.

Abstract: Inserts for table saws are disclosed. The table inserts are equipped with a toolless locking mechanism that mechanically holds the insert in place and which allows for the installation and removal of the insert without the use of tools. The locking mechanism is easy to lock and unlock and yet robust enough to hold a zero-clearance insert in place.

Abstract: An edger feed apparatus and method of feeding flitches into an edger are disclosed. The flitches are positioned with minimal spacing between successive flitches and with flitches positioned and the edger adjusted so as to yield a maximum value of lumber from each flitch. The edger feed apparatus may include a fetcher assembly to hold a second flitch in an edger ready position while a portion of the first flitch is directed below on an edger infeed mechanism being transported to the edger. The fetcher assembly releases the second flitch on to the edger infeed mechanism when the first flitch has moved clear from beneath the edger ready position. The edger feed apparatus additionally includes a scanner system for creating and storing a digital three-dimensional model of each flitch for determining a sawing solution to be implemented by the edger.

Abstract: Provided is a taper reamer with which it is possible to achieve an improvement in machining accuracy and machining life. The taper reamer comprises a plurality of cutting edges each having a helical shape provided on the outer periphery of a cutting-edge portion having an external diameter being expanded from a front end toward a rear end thereof, wherein an intertooth angle, defined between each of a pair of the cutting edges adjacently arranged in a circumferential direction, is different from one another at any given reference position, and wherein the plurality of cutting edges each have a helix angle that is different from one another. As the plurality of cutting edges that are unequally partitioned each have the helix angle that is different from one another, a resonance during cutting can be prevented.

Abstract: A structure and method for retaining fastening element solder are introduced. The structure includes a fastening element which has a solderable surface and a fastening portion or a hole portion. One end of the hole portion or the fastening portion has a retaining portion. During a soldering heating process, solder flows into or enters the retaining portion to cool down and solidify. The solidified solder is retained in the retaining portion. The fastening element is firmly coupled to a first object because of coordination between the solderable surface and the retaining portion, and the second object is coupled to or removed from the fastening element because of coordination between the fastening portion and the hole portion, so as to couple together and separate the first and second objects repeatedly and quickly.

Abstract: The present invention discloses a solder paste laser induced forward transfer device and method. The device comprises a laser, a beam shaping module, an optical path adjustment module, a solder paste transfer module and a computer control system, wherein the laser is connected to the beam shaping module, followed by the optical path adjustment module, and the solder paste transfer module is located below the optical path adjustment module. The beam shaping module comprises a beam expanding lens, an aperture, a flat-top beam shaper and a spatial light modulator. The optical path adjustment module comprises a two-dimensional galvanometer and an f-? lens. The solder paste transfer module consists of a transparent substrate, a solder paste film, a clamp, a Z-axis lifting table, a receiving substrate, and an XYZ precise moving platform. The computer control system consists of a computer and drivers of other devices.

Abstract: The present invention concerns a method for producing a plate heat exchanger (1) with a multiplicity of parting sheets (20) and a multiplicity of fins (11, 12), a fin being respectively arranged between two neighboring parting sheets, wherein at least one capillary (30) with at least one thermocouple and/or measuring resistor element (40) is introduced into at least one parting sheet (20), and wherein in each case a parting plate of the multiplicity of parting plates and a fin of the multiplicity of fins are alternately arranged and are connected to one another in a material-bonding manner, and concerns a plate heat exchanger (1) produced in such a way.

Abstract: Embodiments of systems and methods of additive manufacturing are disclosed. In one embodiment, a computer control apparatus accesses multiple planned build patterns corresponding to multiple build layers of a three-dimensional (3D) part to be additively manufactured. A metal deposition apparatus deposits metal material to form at least a portion of a build layer of the 3D part. The metal material is deposited as a beaded weave pattern, based on a planned path of a planned build pattern, under control of the computer control apparatus. A weave width, a weave frequency, and a weave dwell of the beaded weave pattern are dynamically adjusted during deposition of the beaded weave pattern. The adjustments are under control of the computer control apparatus based on the planned build pattern, as a width of the build layer varies along a length dimension of the build layer.

Abstract: Methods and system of the present invention include hot-wire strip deposition system used in combination with a high heat source, where the system deposits a strip consumable into a molten puddle. During deposition the strip consumable is deposited at an angle relative to the workpiece surface and in some embodiments has a downforce applied to the consumable to maintain contact between the puddle and the consumable. The heating current for the consumable is turned off or greatly reduced when an arcing event is detected. In some embodiments the strip consumable can be curved to promote contact during the deposition process.

Abstract: Methods and apparatus to communicate via a welding arc are disclosed. An example welding-type power supply includes a power converter, a weld monitor, and an arc modulator. The power converter outputs welding power to sustain a welding-type arc at a welding-type torch. The weld monitor monitors one or more aspects of a weld performed using the welding-type arc and the welding-type torch, and selects an audio message based on the one or more aspects. The arc modulator configured to modify the welding-type arc to output the selected audio message as a plasma speaker.

Abstract: A TIG torch for welding, soldering or coating, wherein an electrode is radially surrounded by an inner gas nozzle as far as the electrode tip. A first gas flow in the direction of a workpiece surface through a gap between the inner lateral surface of the inner gas nozzle and the lateral surface of the electrode. The inner gas nozzle is fastened to a sleeve-shaped inner gas nozzle carrier and is surrounded by an outer gas nozzle fixed to an outer gas nozzle carrier or an outer gas nozzle. A second gas flow in the direction of the workpiece surface between the radially outer lateral surface of the inner gas nozzle and the inner lateral surface of the outer gas nozzle. An electrically insulating element is arranged between the inner gas nozzle carrier, inner gas nozzle and/or electrode and the outer gas nozzle carrier and/or outer gas nozzle.