Abstract: The present application provides a lathe fixture for clamping an automobile hub, including a first base, a deflection block support block, a deflection block, a deflection block guide shaft, a circular plate and the like, a second base is connected with the first base via a group of eighth screws and a second pin, the circular plate is connected with the first base via a group of sixth screws, a power chuck is connected to the second base via a group of third screws, and an O-shaped rubber ring is placed between a power chuck and a groove of the second base. Compared with the conventional automobile hub lathe fixture, the lathe fixture has a large relaxing/clamping travel and may adapt to the machining of hubs of multiple sizes.

Abstract: A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25?a?0.45, 0.55?b?0.75, 0?c?0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35?d?0.55, 0.45?e?0.65, 0?f?0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05?d?a?0.2 and 0.05?b?e?0.2.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises a lower layer including at least one Ti compound layer containing a specific Ti compound, an intermediate layer including an ?-type Al2O3 layer containing ?-type Al2O3, and an upper layer including a TiCN layer containing TiCN; the respective layers are laminated in this order from the substrate side toward a surface side of the coating layer; an average thickness of the coating layer is from 5.0 ?m or more to 30.

Abstract: A metal cutting tool includes a tool holder, a seat in the tool holder defined by side walls and a bottom surface. A replaceable element formed by an insert seating anvil is positioned in the seat and secured by a fastening device. A cutting insert is supported on a base surface of the anvil. The anvil has a projecting element formed integrally with the anvil. The projecting element is rigid and has a dove tail shape in top view, wherein the projecting element base and lower surfaces form coplanar extensions of the base and lower surfaces of the rest of the anvil.

Abstract: A cutting tool fastener having a rotation axis and configured to secure together, and establish a fluid path between, two cutting tool members, while also accommodating angular and pivotal displacement between the two. The fastener comprising a head with at least one head opening for emitting fluid, and a body which extends from the head and has a body opening for receiving fluid to be emitted via the head opening. The head has a spherical head abutment surface with a bottom spherical seal surface zone. At least a portion of the spherical head abutment surface faces the body, and the head opening opens out to the spherical head abutment surface. The bottom spherical seal surface zone is axially located between the body and the head opening.

Abstract: A turning tool adaptor includes opposite first and second side surfaces and a peripheral surface which extends therebetween. The turning tool adaptor further includes a cutting portion with an insert retaining portion and a clamping portion which extends from the cutting portion. The clamping portion includes a protrusion which extends transversely from the first side surface. The protrusion includes a main abutment surface and spaced apart first and second adaptor clamping bores which open out to the second side surface and also to the main abutment surface. The turning tool adaptor has first, second and third abutment surfaces which are located between the top and bottom surfaces in a side view perpendicular to one of the side surfaces.

Abstract: In one aspect, expansion sleeves for pressure-activated tool holder apparatus are described herein. An expansion sleeve, for example, comprises a first end, a second end and a longitudinal axis extending between the first end and the second end. A first set of fluid chambers are proximate the first end of the sleeve and a second set of fluid chambers are proximate the second end, wherein fluid channels extend along the longitudinal axis to connect radially offset fluid chambers of the first and second sets.

Abstract: In a method for generating a numerical control program, information related to the shape of a material is acquired, the shape of a flange is categorized on the basis of the acquired information related to the shape of the material, a gripping part for gripping the material during processing of the material is set on the basis of the acquired information related to the shape of the material and flange categorization information, the raw material shape necessary for processing the material is calculated on the basis of the acquired information related to the shape of the material, the flange categorization information, and gripping part setting information.

Abstract: The presently disclosed subject matter is directed to a pipe fitting alignment device. Particularly, the disclosed device comprises a cup configured to fit over one end of a pipe, a slope level, and a laser unit. The device provides a quick and accurate way to locate marks for drilling multiple holes that slope at a desired angle. As a result, the need to measure, level, and mark individual joists is eliminated. Accordingly, the device reduces the need for line levels, traditional torpedo levels, plumb lines, caulk lines, sight wires, level sticks, etc. and allows one person to pinpoint drilling locations and accurately align components and structures to desired slopes.

Abstract: A hole cutter has a substantially cylindrical blade body defining a blade body circumference, a cutting edge formed on one end of the blade body, and an axially-elongated slot formed through the substantially cylindrical blade body. The axially-elongated slot is configured to receive chips flowing from the cutting edge within the interior of the blade body and (i) into the slot and/or (ii) through the slot, to prevent the collection of such chips within the interior of the blade body and/or at an interface between the blade body and the work piece. The axially-elongated slot defines a first end adjacent to the cutting edge, a second end axially spaced further from the cutting edge, and a slot area. The hole cutter further defines a total slot area to blade body circumference ratio within the range of about 0.1 to about 0.3 depending on the size of the hole cutter.

Abstract: A slotting tool body includes a disc-like cutter portion and a shank portion projecting rearwardly therefrom. The cutter portion includes a resilient clamping portion having a peripherally disposed insert receiving slot. The shank portion includes a peripherally disposed forward shank recess that is axially adjacent the cutter portion. A radially inward portion of the insert receiving slot merges in the rearward direction with the forward shank recess. A cutting insert is releasably and resiliently clamped in the insert receiving slot to form a rotary slot cutting tool. The cutting insert includes two cutting portions that each include a long and short insert lateral extension, the long insert lateral extension being longer than the short insert lateral extension. The longest insert lateral extensions are orated on opposite sides of the cutting insert.

Abstract: A double-sided cutting insert with orientation-assisting geometry includes identical and opposite first and second main surfaces and a peripheral surface which extends therebetween. The insert further includes a median plane located midway between the first and second main surfaces and opposite first and second clamping recesses opening out respectively to the first and second main surfaces. Projections onto the median plane of at least portions of the first and second clamping recesses are rotationally offset from one another about a central axis.

Abstract: A single-sided three-way indexable milling insert for 90° shoulder milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has three main cutting edges which lie along an imaginary equilateral triangle. A material volume VF of the cutting insert and a void volume VS of the insert's screw hole fulfill the condition VS/VF?0.30.

Abstract: A single-sided three-way indexable milling insert for feed milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has a cutting edge including exactly three main cutting sub-edges and three secondary cutting sub-edges. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF?0.30.

Abstract: A slitting cutter having a disk-shaped cutter body with a plurality of circumferentially spaced insert receiving portions and a plurality of cutting inserts retained therein. Each insert receiving portion has first and second clamping jaws spaced apart by an insert receiving slot, the first clamping jaw resiliently displaceable and having a resilient axis of rotation. The number of cutting inserts resiliently clamped in the slitting cutter is an inner cutting diameter defined by the plurality of resilient axes of rotation multiplied by a spacing factor of between 0.15 and 0.30. A tool key having first and second key prongs is used in combination with the slitting cutter. The second key prong has a thrust surface with a concave profile. In a partially assembled position of the slitting cutter the thrust surface contacts at least one of two spaced apart first and second corner surfaces of the respective cutting insert.

Abstract: A cutting insert includes a cutting edge portion, and the cutting edge portion includes a bottom cutting edge forming an arc shape that protrudes toward a front end side in a central axis direction, an outer peripheral cutting edge forming an arc shape that protrudes toward an outside in a radial direction, and a cutting edge of corner that connects an outer end of the bottom cutting edge in the radial direction and a front end of the outer peripheral cutting edge in the central axis direction and forms an arc shape that protrudes toward a front end outer circumferential side. The bottom cutting edge and the outer peripheral cutting edge are formed so as to form a linearly symmetric shape together with respect to an imaginary straight line that passes through an arc central point of the cutting edge of corner and intersects the central axis.

Abstract: A bull mill cutter includes a cutter bar and a cutter head. The cutter head has one end mounted to the cutter bar. The cutter head includes a main body and a number of cutter teeth mounted on the main body. A quantity of the cutter teeth is equal to a positive integer within a range from 8 to D*15. D is equal to a diameter of the main body of the cutter head in millimeters.

Abstract: An indexable milling or drilling insert having a 180-degree rotational symmetry about each of the first, second and third axes (X, Y, Z) of a three-dimensional euclidean space. The insert has opposite first and second main surfaces and a peripheral surface extending therebetween. Each main surface has a main abutment surface and at least two rake surfaces. The insert has a through clamping bore which extends along the third axis and opens out to the main surfaces. The peripheral surface has two opposite front surfaces connected to two opposite side surfaces. Each front surface has a pair of outward abutment surfaces and each side surface has a pair of at least partially planar inward abutment surfaces. Each pair of outward abutment surfaces converge outwardly away from the third axis and each pair of inward abutment surfaces converge inwardly towards the third axis.

Abstract: A single-sided four-way indexable cutting insert includes a positive basic shape, a rake surface, a peripheral surface including four side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has an imaginary square frustum which defines a square base containing the cutting insert's base bearing surface, and further defines four isosceles trapezoid side surfaces respectively containing the cutting insert's four side abutment surfaces. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF?0.25.

Abstract: Cutting tools and tool holders for pipe cutting frames are disclosed. Example cutting tools include a tool holder and a cutting insert removably securable in the tool holder. Example cutting inserts include: first and second side surfaces; first and second locating surfaces configured to locate the cutting insert in the tool holder between corresponding first and second clamping surfaces of the tool holder, wherein the first locating surface protrudes from the cutting insert with angled locating surfaces extending from the first locating surface to the first and second side surfaces, and the second locating surface comprising an indentation; front end and rear end surfaces; a rake surface, the rake surface and the front end surface forming a cutting edge; and an insert stop surface at a rear of the rake surface, extending from the rake surface to the first locating surface and the angled locating surfaces.

Abstract: A power tool includes a motor; an arbor attachment mechanism that includes a shaft configured to be driven by the motor about a spin axis. The arbor attachment mechanism is configured to hold a blade onto the shaft. The power tool includes a blade size limiter that is configured to prevent attachment of a blade with a radius greater than a predetermined size, and is configured to be connected to the arbor attachment mechanism independently of the attachment of the blade to the arbor attachment mechanism and such that the blade size limiter is at a distance from the spin axis of the shaft.

Abstract: The present disclosure provides a method of producing a saw blade (10), comprising providing a saw blade blank, comprising a circular blade base body (100) with radially extending teeth (101), said teeth being in an initial position, in a first bending step, bending at least some of the teeth (101), such that the teeth are plastically deformed, towards an axial direction (A) of the saw blade blank, to an intermediate axial position (N?), and in a second, subsequent, bending step, bending said at least some of the teeth (101), such that the teeth are plastically deformed, towards an opposite axial direction (?A) of the saw blade blank, such that the teeth arrive at a final axial setting position (N?). In the method, the intermediate axial position (N?) is axially beyond the final axial setting position (N?).

Abstract: A wire electric discharge machining apparatus includes: a processing tank, a lower-side wire guide assembly, a lower arm, a direction changing pulley, a winding roller, and a conveying device. The conveying device comprises a high-pressure jet flow generator and a suction pipe. The high-pressure jet flow generator is provided between the direction changing pulley and the winding roller on a side of a front end of a lower arm, and spouts a high-pressure jet flow toward a direction of the winding roller so that a wire electrode is guided only by a restraining force of the high-pressure jet flow and sent flying to the direction of the winding roller with the high-pressure jet flow. The suction pipe is provided on an exit side of the winding roller, and sucks and captures a tip of the wire electrode sent by the high-pressure jet flow.

Abstract: A marker apparatus includes a housing, a current controller that is electrically connected to an electrode, a pad connected to the electrode for retaining an electrolytic fluid, and a removable cover. The removable cover retains an insulated stencil to an outer surface of the pad. The insulated stencil defines at least one permeable portion therein and a portion of the outer surface of the pad adjoins the at least one permeable portion. The at least one permeable portion can be formed as at least one opening defined through the insulated stencil, in which the portion of the outer surface of the pad extends into the at least one opening. The current controller provides an electric current from the electrode through the at least one permeable portion that is electrically connected to an object to be marker. The marker apparatus can include an on-board reservoir of electrolytic fluid and an actuator.

Abstract: A method of sealing a metal retainer to a metal valve body that includes the steps of applying a soldering paste in a predetermined amount to the threads of a threaded retainer and threading the retainer into the threads of a threaded opening in the valve. The retainer is heated to a temperature sufficient to liquefy and disperse the soldering paste into spaces between the threads of the retainer and the threads of the opening in the valve to thereby achieve an adhesive seal.

Abstract: Aspects of the disclosure provide a pallet and a method for supporting a printed circuit board (PCB) during a circuit board assembly process. The pallet includes a panel having a frame area surrounding a depression area for receiving a PCB. The pallet includes at least one fixed tooling pin attached to the panel at a first location in the depression area. The pallet further includes at least one movable tooling pin positioned at a second location in the depression area, and the movable tooling pin is movable between a release position for installing the PCB in the depression area and a secure position for securing the PCB in the depression area.

Abstract: A method of manufacturing a turbine blade includes brazing treatment for joining a brazing material to a base material of a turbine blade by heating the base material having the brazing material arranged thereon and melting the brazing material, stabilizing treatment for heating the base material having been subjected to the brazing treatment; and aging treatment for heating the base material having been subjected to the stabilizing treatment. The brazing treatment and the stabilizing treatment are performed with one heating treatment.

Abstract: An injection-molded solder (IMS) tool assembly apparatus, the apparatus including an IMS tool for dispensing a molten material via a round extrusion part to coat an inside or an outside wall of a pipe (and a chiller for providing cooling water to flow through an inside of the pipe.

Abstract: Embodiments of brazing systems are disclosed. In one embodiment, a brazing system includes a controller circuit board (controller) having a processor and a memory. The system also includes a fuel gas input, a fuel gas output, an oxygen/air gas input, and an oxygen/air gas output. The system further includes a touch screen display and a foot pedal, each operatively connected to the controller. The controller is configured to store multiple jobs of flame presets in the memory. Any job can be called up from the controller and the flame presets can be cycled through in response to tapping the foot pedal. Each job corresponds to a sequence of joint brazings to be performed on a braze assembly and includes a plurality of selectable flame presets. Each flame preset defines a flame setting based on a flow rate of a fuel gas and a flow rate of an oxygen/air gas.

Abstract: Gerber data for a substrate includes coordinates for physical features on the substrate. The coordinates are relative to a substrate origin point on the substrate. The gerber data allows a user to specify any of the physical features as soldering targets of a soldering apparatus that includes a motor for moving a soldering iron according to coordinates relative to a system origin point of the soldering apparatus. When the substrate is placed on the soldering apparatus, its substrate origin point differs from the system origin point of the soldering apparatus. The user may input coordinates for the substrate origin point, which are used by the soldering apparatus to derive coordinates, usable by soldering apparatus, from coordinates in the gerber data. In this way, it is possible to reduce the workload of the user when programming the soldering apparatus to perform a soldering process.

Abstract: The present invention provides a lap fillet arc welding joint including a first metal sheet, a second metal sheet, and a weld bead. A region of the first metal sheet on one end side is bent. In a cross-sectional view in a cross section perpendicular to a weld line of the weld bead, in a first direction, a position of a tip end of the bent region of the first metal sheet overlaps a region of the second metal sheet on one end side. In a second direction, an amount of deviation between a central axis of a region connected to the bent region of the first metal sheet and a central axis of the region of the second metal sheet on one end side is ½ times or less of the average value of sheet thicknesses of the first metal sheet and the second metal sheet. A joint portion length, which is a length from a root portion of the second metal sheet to a weld toe portion of the first metal sheet, is two times or more of the sheet thickness of the second metal sheet.

Abstract: Provided is a method for bonding dissimilar metals to each other, the method comprising: dissimilar metal layer-forming steps (P2), (P3), (P4) for supplying, to form dissimilar metal layers; a second metal layer-forming step (P5) for supplying, on the surface of the dissimilar metal layers, a filler material formed of a second metal, and heating the filler material formed of the second metal to a temperature equal to or higher than a melting point of the second metal, to form a second metal layer formed of the second metal; and a second material-to-be-bonded welding step (P6) for welding a second material to be bonded that is formed of the second metal, onto the second metal layer.

Abstract: A robotic electric arc welding system includes a welding torch, a welding robot configured to manipulate the welding torch during a welding operation, a robot controller operatively connected to the welding robot to control weaving movements of the welding torch along a weld seam and at a weave frequency and weave period, and a welding power supply operatively connected to the welding torch to control a welding waveform, and operatively connected to the robot controller for communication therewith. The welding power supply is configured to sample a plurality of weld parameters during a sampling period of the welding operation and form an analysis packet, and process the analysis packet to generate a weld quality score, wherein the welding power supply obtains the weave frequency or the weave period and automatically adjusts the sampling period for forming the analysis packet based on the weave frequency or the weave period.

Abstract: An arc start adjustment device adjusting an arc start procedure in a welding process comprises an obtainment unit that obtains welding data indicating a welding state during or after a welding process, and a procedure adjustment unit that adjusts the arc start procedure such that the cycle time of the welding process is shortened based on welding data obtained by the obtainment unit.

Abstract: A welding machine includes a welding power supply. A generator is operatively connected to the welding power supply to supply electrical energy to the welding power supply. An internal combustion engine is configured to drive the generator. A chassis structure includes a divider wall that at least partially defines an engine compartment of the welding machine. A cantilevered engine-mounting shelf is cantilevered from the divider wall. The internal combustion engine is attached to the cantilevered engine-mounting shelf. A fuel tank is mounted within the chassis structure and located beneath each of the cantilevered engine-mounting shelf, the internal combustion engine and the generator.

Abstract: A welding machine includes an enclosure and a welding power supply mounted in an electronics compartment within the enclosure. A divider wall at least partially defines an engine compartment. A generator is operatively connected to the power supply. An engine, located within the engine compartment, drives the generator. An engine-cooling fan is coupled to the engine. A recessed side vent is in fluid communication with the electronics compartment and recessed in a lateral side of the enclosure, and a recessed air channel is formed by the lateral side and extends rearward from the side vent along the engine compartment. The engine-cooling fan draws cooling air forward through the recessed side vent and into the electronics compartment, and downward through the electronics compartment and into the engine compartment.

Abstract: A method and apparatus for providing welding type power is disclosed. A welding type power supply includes an input circuit, a controller and an output circuit. The input circuit receives an input power signal and provides an intermediate power signal. The output circuit receives the intermediate power signal and provides a welding type power output. The output circuit has an inverter with at least two inverter switches, and a clamp circuit that limits the voltage across the inverter. The clamp circuit captures and buffers the excess energy, and returns the excess energy to an input of the inverter over a plurality of switching cycles. The controller has control outputs connected to the input circuit and the output circuit, to control them.

Abstract: A first aspect of the present disclosure provides a thermal processing torch. The thermal processing torch includes an operation portion, a display portion, a sensor portion, a communications portion, and a control portion. The operation portion has an operation button. The display portion has a display screen. The sensor portion detects inclination information. The communications portion transmits a signal. The control portion causes the communications portion to transmit a signal based on an input from the operation portion. The control portion causes the display screen to display a menu screen for selecting a desired screen among a plurality of screens based on the inclination information detected by the sensor portion.

Abstract: A system and method of electric arc welding that includes a welding apparatus having an electric arc welder torch with sensors to determine the absolute position of the torch tip and the relative position of the torch tip to the weld joint during automatic welding. Combining absolute and relative positional data can be used to adjust the path of the robot during automated or robotic welding in response to variations in the weld joint.

Abstract: A center pipe is used in a plasma torch including a base portion and an electrode to supply cooling water into the electrode. The center pipe includes a pipe body and a contact piece. The pipe body has a tube-like shape with a cooling water channel therein. The pipe body is electrically conductive and configured to be electrically connected to an external power source via the base portion. The contact piece is arranged radially outside the pipe body at an intermediate position between a base end surface and a tip end surface of the pipe body. The contact piece is electrically conductive and energizes the electrode through contact with an internal circumferential surface of the electrode. The base end surface is disposed outside the electrode when the center pipe is inserted into the electrode. The pipe body is configured to be electrically connected to the electrode via the contact piece.

Abstract: In a method for cleaning a portion to be welded in which a first portion (Pa) to be welded and a second portion (Pb) to be welded, which are to be joined by butt welding, are cleaned, the first and second portions (Pa, Ph) to be welded are cleaned before the butt welding by injecting, with the first and second portions (Pa, Pb) to be welded abutting on each other, plasma produced from a gas containing oxygen into a groove between the first portion (Pa) to be welded and the second portion Pb) to be welded.

Abstract: A resistance spot welding electrode for forming dissimilar welded lap joints in crash-relevant structural components of the automotive industry made of high-strength materials. The resistance spot welding electrode includes a cap having, at an end portion of the electrode in contact with materials to be welded together during welding, a non-axially symmetrical contact area in order to form, between the materials being welded, a weld nugget with an essentially similar non-axially symmetrical shape.

Abstract: A bonding tool as the tool for ultrasonic bonding includes a plurality of protrusion portions in a protrusion region at a contact tip portion. The plurality of protrusion portions are equally spaced at a longitudinal direction interval in an X direction as the longitudinal direction of the protrusion region, and an X direction outermost protrusion portion positioned outermost in the X direction is disposed separately from a side edge of the protrusion region in the X direction by a longitudinal direction side edge distance. The plurality of protrusion portions are disposed so that a first disposition condition {0.349?EX (the longitudinal direction side edge distance/DX (the longitudinal direction interval)?0.510} is satisfied.

Abstract: A method for bonding a cemented or sintered tungsten carbide element to a structural component is provided comprising cladding at least one surface of the cemented or sintered tungsten carbide element with a metal layer using hot isostatic pressing; and friction welding a cladded surface of the cemented or sintered tungsten carbide element to the structural component.

Abstract: Example implementations relate to techniques for refining the microstructure of metallic materials used for additive manufacturing. An example can involve generating a first layer of an integral object using a material with grains structured in a first arrangement. After a threshold duration occurs since generating the first layer, the example can involve applying an external force to the first layer to cause deformations in the first arrangement of grains. The example can further involve generating a second layer coupled to the first layer of the integral object to form a portion of the integral object. Generating the second layer of the integral object causes the material of the first layer to recrystallize new grains to replace grains proximate the deformations. The grains that result from recrystallization are structured in new arrangement that improves the physical and mechanical properties of the layer and subsequent layers collective.

Abstract: Laser cutting systems and methods are described herein. One or more systems include a laser generating component, an optical component, a fixture for holding a support with a part positioned on the support, and a control mechanism for adjusting at least one of the laser generating component, the optical component, and the fixture such that a ratio of a laser energy applied to the part and a part material thickness is maintained within a predetermined acceptable range at each point along a cut path to cut through the part while maintaining the integrity of the support. Other systems and methods are disclosed herein.

Abstract: A laser machine having less constraints on the dimension and shape of a machining object than a laser machine in the related art. The laser machine includes: a flying body capable of floating and moving in a space; a machining head mounted on the flying body and configured to radiate a laser beam; a position/posture detector configured to detect the position and posture of the machining head with respect to a workpiece; a radiation position changer capable of changing the radiation position of the laser beam radiated from the machining head on the basis of the position and posture of the machining head detected by the position/posture detector; and a laser oscillator configured to supply the laser beam to the machining head.

Abstract: The present invention is a laser processing device wherein adhesion of fumes to a lens can be effectively avoided. The laser processing device is provided with a laser scanner provided with protective glass on a laser output opening, and a cylindrical member having a through path through which the laser output via the protective glass passes formed on the center side in the direction of the radius. A cylindrically shaped filter is disposed on an inside wall part of the cylindrical member facing the through path. The cylindrical member discharges a gas into the through path from the filter.

Abstract: A welding method includes: heating a second metal by a heater, the second metal having a melting point higher than that of a first metal; welding the first metal and the second metal in accordance with a heat amount to melt the first metal in a state where the second.

Abstract: An additive manufacturing system includes an electrode head comprising an array of electrodes for depositing material to form a three-dimensional part. The array includes a first plurality of electrodes formed from a first metallic material having a first ductility and a first hardness, and a second plurality of electrodes formed from a second metallic material having a second ductility and a second hardness, wherein the first ductility is greater than the second ductility and the second hardness is greater than the first hardness. A power source provides electrical power for establishing a welding arc for each electrode. A drive roll system drives each electrode.