Abstract: A washer having a plurality of water inlet diffusers, each diffuser connected to a water inlet line for directing the flow of fluid into the washing chamber. The water is directed, i.e., sprayed against the surfaces of the washing chamber to modify (adjust) the temperature of the washing chamber gradually prior to the start of a particular phase of a washing cycle.

Abstract: A vessel washer comprises: a washing tub; a cover element; and a pedal, wherein the washing tub comprises a rotating member, an outer brush, and an inner brush; the rotating member comprises a center branch and a side branch; the center branch and the side branch are rotated and revolved, respectively; the outer brush is disposed at the side branch, and the inner brush is disposed at the center branch; the cover element comprises a pressure part made of resin for pressing a vessel disposed on the center branch in an upside-down manner; and the pedal is pressed or treaded on by a hand or foot of a user to rotate and revolve the center branch and the side branch.

Abstract: A machine (20) for laying a film (122) on a ground surface such as a landfill has a pair of opposed, support arms (84) each having a respective film roll support mechanism (94). In some embodiments the support arms are pivotable. Each film roll support mechanism (94) has a moveable arm (102) with a film roll support bracket (106), and a hydraulic system (98, 104) controllable by an operator of the machine for retracting and extending the moveable arm (102). The machine has means (120, 124) for holding the roll (96) of film between the brackets (106) for unwinding the film onto the ground. The machine may include a film cutter assembly (154) for cutting the laid film.

Abstract: Waste containing a cytotoxic chemotherapy drug is collected in a container and contacted with a solidification material to form a solidified waste. The solidification material includes a mixture of an organic polymer and a Portland cement clinker. The organic polymer facilitating dispersal of the Portland cement clinker upon contacting said waste with the solidification material, wherein a volume of the solidified waste forms a stable matrix. The solidified waste is sealed within the container.

Abstract: A force sensor system for measuring forces that are transferred from film strips or sheet metal strips to a measuring roll during rolling in roll stands can be inserted into a cylindrical hole of a measuring roll under preload. The force sensor system includes a first force sensor and a preloading device for creating a preload on the first force sensor, so that the first force sensor can determine a force acting radially on the measuring roll. The first force sensor has a high sensitivity, which corresponds to the required measurement sensitivity of the contact force of the film strip or sheet metal strip. The force sensor system includes a second force sensor, which also can be placed under preload by means of the preloading device. The second force sensor is a statically measuring force sensor.

Abstract: The invention is directed to a device for straightening a stream of a cooling medium for cooling a roll or a metal strip. This device comprise a hollow body, extending over at least part of the width of the roll or the metal strip, and a tube, arranged in the hollow body and extending in the direction of the width of the roll or the metal strip, wherein the hollow body is divided in the direction of the width of the roll or the metal strip into a number of chambers, and the tube comprises openings for introducing cooling medium into the chambers of the hollow body, and the chambers respectively comprise an opening for the flowing out of cooling medium from the hollow body.

Abstract: Systems, methods, and devices for the production of aluminum rods from aluminum bars, aluminum wires from aluminum rods, and aluminum wires from aluminum bars are disclosed and described. Annealing steps are not needed or required in the disclosed methods.

Abstract: Apparatus for use with two or more supplies of strip metal comprises, for each supply, a strip feeder and a bending head, the feeder being adapted to receive metal from said each supply and deliver same to the head which is adapted to receive and curl metal from the feeder to produce a strip part encircling a central axis in a coiling manner. The heads and feeders are adapted such that the part axes are coincident and the parts are axially offset from one another, with axially adjacent parts being positioned relative to one another throughout their lengths to define a metal strip which encircles the coincident axes in a coiling manner, the metal strip defining a tubular arrangement which can be used at least for armor cable. The parts can have cross sections such that they interlock throughout their lengths and the strip interlocks with itself throughout its length.

Abstract: The invention relates to a device for feeding long workpieces into a processing machine, such as a bend-straightening machine, and discharging them therefrom, in which the long workpiece which is located in the processing positions defines a processing section and the long workpiece is supported at its two end regions by, in each case, one grasping device. A horizontal conveying means for the long workpiece adjoins at least one head end of the processing section as a straight prolongation of the processing section. At least one of the grasping devices has a gripping head for gripping in a frictionally locking fashion one end of the workpiece which is conveyed here by the horizontal conveying means, and drive means for pulling the workpiece to be straightened into the processing section and for pushing the straightened workpiece out onto the at least one horizontal conveying means by means of the gripping head.

Abstract: The invention relates to a device for working sheet-like material, such as a press brake for bending steel sheet. The device includes: a frame; two, relative to each other movable, substantially parallel beams for working the sheet-like material, which beams are connected to the frame; driving means for driving the substantially parallel beams away or towards each other; at least one spring means, connected at a horizontal position along said beams for urging the beams away from each other; wherein the spring means have a spring constant that is adjustable.

Abstract: A shell muffler for an internal combustion engine that is formed of a first shell and at least one second shell, which shells are connected at their respective edge regions BS so as to form the shell muffler, each edge region BS having a box-like inner contour KSi, which has four corner regions (E1)-(E4) and a width (B) and a length (L), and an outer contour KSa, and each shell being produced from a shell blank R, which is formed by deforming a sheet metal strip using a deep drawing tool having the shape of the shell, the blank R, after deforming, having an edge region BR with an outer contour KR, said edge region being removed at least partially after the blank R has been cut to size so as to form the outer contour KSa of the edge region BS of the shell.

Abstract: In a first aspect, a method for producing a strip from a web material using a follow-on and/or transfer method, wherein the strip to be produced has a first length of 20 cm or more in the longitudinal direction and has a U-shaped cross section, wherein the U-shaped cross section has an opening width of 6 mm or less and extends in the longitudinal direction in a first curvature and a second curvature, wherein the center point of the first curvature lies to the side of a limb of the U-shaped cross section and the center point of the second curvature lies above or below an opening in the U-shaped cross section.

Abstract: Methods and apparatuses for roller hemming are disclosed herein. An example of a sheet metal roller hemming apparatus includes a first electrode to electrically connect to an electrical power supply and a sheet metal workpiece. The apparatus further includes a second electrode to electrically connect to the electrical power supply and the sheet metal workpiece to cause pulsed electric current to flow through a portion of the workpiece to locally increase formability in the portion of the workpiece. The apparatus still further includes a roller assembly to contact the workpiece to cause the workpiece to bend in the portion of the workpiece when the pulsed electric current is flowing through the portion of the workpiece, and to form a hem.

Abstract: The present invention proposes a crimping punch making it possible to obtain a crimping that is resistant to pulling out. To this end, the punch (20) comprises a fixing part (21) for fixing to the tool and a punching part (22) consisting of a spike (23) connected to the fixing part by a first (24) and a second (25) crimping face, the first crimping face (24) exhibiting a convex primary profile and a secondary profile comprising at least two teeth (241, 251), preferably between three and five teeth, advantageously three teeth.

Abstract: A portable crimping device preferably includes a support base, a hydraulic cylinder, a hand hydraulic pump, a crimping device and a pair of mounting brackets. The pair of mounting brackets are attached to the support base. An output of the hand hydraulic pump is connected to an input of the hydraulic cylinder. The hand hydraulic pump and the hydraulic cylinder are retained by the pair of mounting brackets. The crimping device preferably includes a base yoke member, a die pivot member and an actuation base. A pair of crimp dies are retained in the base yoke member and the die pivot member. The actuation base is slidably retained in the base yoke member. The die pivot member is engaged with the die pivot member. Pumping of the hand hydraulic pump causes the actuation base to crimp an object placed between the pair of crimp dies.

Abstract: An upper die unit and a lower die unit are provided. One of the upper and lower die units includes a main punch and the other die unit includes an ejector, a slider and a biasing portion which is connected to the slider and biases the slider in a predetermined sliding direction S. A cam structure is disposed between the slider and the ejector and converts a movement of the ejector to a movement of the slider in a direction opposite to a predetermined sliding direction when the upper and lower die units are closed, and converts a movement of the slider to a movement of the ejector in a work ejecting direction when the upper and lower die units are opened. A position retaining portion is also provided which retains a position of the slider for a period of time.

Abstract: A method of manufacturing a razor head component that includes the steps of: providing a strip of material elongated along a first direction, the strip having first and second edges parallel with the first direction; having a first portion that includes a first edge, a second portion having a second edge, and an intermediate portion intermediate the first and second portions; bending the intermediate portion of a part of the strip about a bending axis parallel to the first direction; and fixing a razor blade onto the second portion of the part.

Abstract: A process for hot shaping a workpiece of metal or an intermetallic compound at a temperature of higher than about 1000° C. The method comprises at least partially coating the surface of the workpiece with a coating agent that comprises an oxide phase and an additive and/or an adhesive before processing the workpiece into a formed body or a rolling product. A coating agent for reducing the heat emission from the workpiece comprises a predominant amount of an oxide phase. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A riveting tool including a magnet, a magnetically attractive housing, a non-magnetically attractive bucking bar received in the housing, the bucking bar being moveable relative to the housing along a bucking bar axis, and an actuation mechanism to move the bucking bar along the bucking bar axis.

Abstract: The invention relates to a device for forming at least one thin film made of a powder material (14). The device includes a storage area, a deposition area (7), and a cylinder (1) having a circular base for depositing and compacting the powder material (14), the latter having been previously moved from a storage area to a deposition area (7). The device further includes a cylinder (1) having a smooth cylindrical surface, said cylinder being rotatably movable (F1) about the axis of revolution (A) thereof, as well as translatably movable in at least one direction (F5) parallel to a main plane in the deposition area (7), between the storage and deposition (7) areas; a scraper (3) that is movable in a direction perpendicular to the main plane of the deposition (7) area, as well as translatably movable in the same direction (F5) as the cylinder (1), between the storage and deposition (7) areas, the scraper (3) being adapted to move the powder material from one area to another (7).

Abstract: Processes for producing a nickel-titanium alloy are disclosed. The processes are characterized by the production of nickel-titanium alloy articles having improved microstructure. A pre-alloyed nickel-titanium alloy is melted and atomized to form molten nickel-titanium alloy particles. The molten nickel-titanium alloy particles are cooled to form nickel-titanium alloy powder. The nickel-titanium alloy powder is consolidated to form a fully-densified nickel-titanium alloy preform that is hot worked to form a nickel-titanium alloy article. Any second phases present in the nickel-titanium alloy article have a mean size of less than 10 micrometers measured according to ASTM E1245-03 (2008) or an equivalent method.

Abstract: A method for forming a coating on a substrate is provided. To an assembly 10 including a substrate 12, a porous matrix 14 on the substrate 12, and an impregnating material 16 on or within the porous matrix 14, the method includes applying an amount of energy 18 from an energy source 20 effective to melt the impregnating material 16 and a portion of the substrate. In this way, the impregnating material 16 impregnates the porous matrix 14. The method further includes cooling the assembly 10 to provide a coating 26 comprising the porous matrix 14 integrated with the substrate 12.

Abstract: A friction stir welding (FSW) tool tip is described. The tool tip comprises a pin portion and a body portion that meet to form a shoulder. The tool tip has a graduated change in composition along its length. In some embodiments, the alloy composition near the end of the pin differs from the alloy composition of the body by at least 0.5% by wt of at least one element. A method of manufacturing a FSW tool tip having a gradual compositional change is also described.

Abstract: Methods and apparatus for a stand-off interrogation system having an ultra-fast X-ray source (incoherent and/or X-ray laser) with an ultra-short pulse emission to irradiate a target material behind a barrier. In one embodiment, the target material is an explosive material in a container. The composition of the target material is directly determined from the detected elemental differential back-scattering signatures.

Abstract: A bimetallic nanowire synthesis method is provided. The method includes adding first and second solutions into a vessel containing a porous template with the first solution containing first and second reagents added on one side of the porous template and the second solution added on an opposite side of the porous template. The first reagent includes a first salt of at least one of a transition metal, an actinide metal and a lanthanide metal. The second reagent includes a second salt of at least one of a transition metal, an actinide metal and a lanthanide metal. The second solution contains a reducing agent.

Abstract: A method of forming monodispersed metal nanowires comprising: forming a reaction mixture including a metal salt, a capping agent and an ionic additive in a polar solvent at a first temperature; and forming metal nanowires by reducing the metal salt in the reaction mixture.

Abstract: In one embodiment, a disposable surgical rode deburrer has a shank configured to be rotated by a drive device and a housing assembly coupled to the shank. The housing assembly includes a rod guide having an opening sized to receive and stabilize a surgical rod when inserted therethrough into an inner cavity. The housing assembly also includes a cutting bit disposed within the inner cavity that is rotated to deburr an end of the surgical rod. A membrane wiper is disposed between the rod guide and the cutting bit. The membrane wiper has a seal that opens to allow the surgical rod to be inserted therethrough, and substantially closes when the surgical rod is removed. The housing assembly also includes a drive body. The membrane wiper retains within the inner cavity chips, particles or dust created by the cutting bit.

Abstract: A surface-coated cutting tool with a body and hard coating layer is provided. (a) The hard coating layer is made of a complex nitride layer of Al and Cr. (b) The hard coating layer deposited on a region from a cutting edge to a location 100 ?m from the cutting edge toward an opposite side thereof has a granular crystal structure. The average grain size of granular crystals on a surface of the hard coating layer on the region is 0.2-0.5 ?m. The average grain size of granular crystals at an interface between the cutting tool body and the hard coating layer on the region is smaller than the average grain size on the surface the hard coating layer in an extent of 0.02-0.1 ?m. The crystal grain size length ratio of crystal grains whose size is 0.15-20% or less.

Abstract: A cutting insert for use on a tool body includes a first member formed in a predetermined shape and a second member formed separate from the first member in a second predetermined shape and coupled to the first member. At least one of the first member or the second member comprise a number of cutting portions adapted to perform cutting operations on a workpiece.

Abstract: The invention relates to a hydraulic expanding chuck (1) having a main body (2) and an expanding bush (3), which is inserted into the main body (2) to form at least one pressure chamber (5a, 5b) and is intended for chucking a tool. The expanding bush (3) has a radial opening (20), which is arranged in alignment with a driver (21) which is held adjustably in the main body (2) and can be moved via the opening (20) into positive engagement with a driving surface (22) on the tool shank of a tool to be received in the expanding bush (3). According to the invention, the driver (21) has a driver screw (23), which can be driven from radially outside the hydraulic expanding chuck (1) and is screwed into a threaded bore (24) formed in the main body (2) in alignment with the radial opening (20).

Abstract: A face cutter for machining fiber-reinforced materials such as carbon-fiber-reinforced plastics, glass-fiber-reinforced plastics or plastics reinforced with polyester threads is provided which includes main flutes, which form with trailing premachining lands a cutting wedges with premachining cutting edges, and auxiliary flutes, the number of which corresponds to a number of the main flutes, each trail one of the main flutes in the peripheral sense, each distance in the peripheral sense a postmachining land from the pre-machining land leading in the peripheral sense, and form with the postmachining land a cutting wedge with a postmachining cutting edge.

Abstract: A shaping tool is having a cap, a blade portion and a body. The blade portion having a one or more pairs of blades. The body having a slot being substantially vertical which the blade portion freely slides vertically through. The cap having a first cylindrical portion with an open mouth at a lower portion and a cap at an upper portion. The body having a first cylindrical portion with an open mouth at a lower portion and a cap at an upper portion. The open mouth of the cap comprising an internal diameter being greater than an external diameter of the body. The shaping tool comprising an assembled configuration comprising the blade portion held between the cap and the body and partially within the slot, and the one or more pairs of blades exposed within the body.

Abstract: This helical broach forms a twisted groove at the inner circumference of a machined hole of a workpiece by a plurality of cutting teeth, the plurality of cutting teeth include a plurality of circumference cutting teeth which are arranged on the tip-end side of the broach body, and include a plurality of tooth thickness cutting teeth which are arranged on the rear-end side of the broach body. The plurality of tooth thickness cutting teeth include cutting edges and guiding edges, respectively. The tooth thickness cutting tooth positioned closest to the rear-end side of the broach body is provided with the guiding edge instead of the cutting edge at the intersecting ridge part between a rake face and a lateral surface facing one wall surface of both groove wall surfaces of the twisted groove of the workpiece.

Abstract: The invention relates to method of manufacturing a multiple of identical gears by means of cutting machining, in particular hob cutting or hob grinding, on a gear-cutting machine, wherein workpieces are machined by means of a rotating tool which is brought into engagement with the workpiece via the control of NC axes of the gear cutting machine. In accordance with the invention, deviations from workpiece to workpiece are compensated by a respective different control of at least one of the NC axes of the gear cutting machine.

Abstract: An electric discharge machining apparatus of the present invention includes a power supply, an electrode gap configured so as to be formed by an electrode and a workpiece, and an earth floating-capacitance current-suppressing coil configured to be inserted between the power supply and the electrode gap. Accordingly, the impedance in the charging path from the power supply to an interelectrode capacitance (an interelectrode parallel capacitor and an interelectrode parallel floating capacitance) can be decreased, and the impedance in the charging path to an earth floating capacitance can be increased, thereby enabling the electric current from the earth floating capacitance during discharge machining to be suppressed.

Abstract: A sinker electric discharge machining apparatus includes a quill 10, to which a tool electrode is attached, and a linear motor device configured to generate a linear movement of the quill towards a workpiece. The quill includes a plate member 11 made of a metal or an alloy, a first reinforcing member 51 fixed to a front surface 14 of the plate member, a second reinforcing member 52 fixed to the front surface of the plate member, a third reinforcing member 53 fixed to a back surface 15 of the plate member and disposed opposite to the first reinforcing member across the plate member, and a fourth reinforcing member 54 fixed to the back surface of the plate member and disposed opposite to the second reinforcing member across the plate member. The quill has a cross-section that is symmetric in a width direction of the plate member.

Abstract: An assembly and planar structure for use therein which is expandable into a 3-D structure such as a stent and device for making the planar structure are provided. The planar structure permits the use of planar batch manufacturing technologies to fabricate coronary artery stents. Stents with different wall patterns are fabricated from 50 ?m thick stainless steel foil using micro-electro-discharge machining, and expanded to tubular shapes by using angioplasty balloons. The stents are free-standing. The free-standing stents exhibit diameter variations of <±4%, almost zero radial recoil after deflation of the balloon, and longitudinal shrinkage of <3% upon expansion. A variation of the stents uses breakable links to provide additional customization of electrical and mechanical properties. Loading tests reveal that the radial strengths match commercially available stents, while longitudinal compliance, at 0.02 m/N for a 4 mm long section of the stent, is substantially higher.

Abstract: A reflow furnace (1) has a decompression chamber (5), and air bubbles contained in a molten solder on a substrate (7) are removed in this decompression chamber (5). The substrate (7) supported on a first conveying rail (8) is fed into the decompression chamber (5) by a first conveyance rod (18). The substrate (7) in the decompression chamber (5) is taken out by a second conveyance rod (32) and is conveyed to the exit of the reflow furnace (1) while being supported on the second conveying rail (9). Before the treatment of substrates (7) having different widths, the width of the first conveying rail (8) and the width of the second conveying rail (9) are adjusted. During this adjustment, the second conveyance rod (32) is displaced in the width direction of the substrate (7), with the second conveyance rod (32) kept in the decompression chamber (5), and in association with this, the spacing between right and left rail portions (12a, 12a) in the decompression chamber (5) is adjusted.

Abstract: A welding system having a welding gun with a contact tip having an bore extending therethrough and a consumable weld wire. The cross-sectional shape of the bore of the contact tip being is essentially identical to the cross-sectional shape of the weld wire. The bore having an essentially elliptical cross-sectional shape and the weld wire having an essentially elliptical cross-sectional shape.

Abstract: A method of resistance spot welding aluminum alloy workpieces together includes several steps. In one step a welding electrode is provided. The welding electrode has a weld face. In another step, the weld face of the welding electrode is shaped to have a desired radius of curvature. The shaped weld face is then textured to a desired surface roughness, and resistance spot welding using the welding electrode is performed to the aluminum alloy workpieces. In yet another step, the weld face is dressed to an extent sufficient to remove contamination build-up that may have accumulated on the weld face from the aluminum alloy workpieces.

Abstract: A spot welding system (1) includes a welding pressure command generating unit (31) which generates a reference welding pressure command for a spot welding gun by applying pressure to workpieces to be welded between two electrode tips and at least one detective welding pressure command, an elastic displacement quantity deviation calculating unit (32) calculating, as an elastic displacement quantity deviation, a rotational position deviation between the rotational position of a servomotor when the reference welding pressure command is used and the rotational position of the servomotor when at least one detective welding pressure command is used, and an estimating unit (34) which estimates that there is an abnormality in the spot welding gun when the deviation between the elastic displacement quantity deviation based on the reference welding pressure command and at least one detective welding pressure command and the reference displacement quantity deviation is greater than a predetermined value.

Abstract: The first embodiment of the invention is a spot welding method using a welding gun including a pair of electrodes holding and welding a welding point of a workpiece. The method including: transmitting an ultrasonic from one of the electrode pair to the workpiece with the electrode pair holding the workpiece; receiving the ultrasonic at the other electrode passed through the electrode pair and the workpiece; and detecting a holding state of the workpiece on the basis of an amplitude of the received ultrasonic. According to the embodiments of the invention, the welding gun can hold the workpiece at the proper position and with the correct angle, thereby reducing the welding flaws.

Abstract: A welding electrode according to the disclosure includes a body. A head is secured to the body and includes an aperture through which a pin extends. A polymer insulating sleeve is arranged between the pin and the head, for example. The sleeve material extends radially from an inner diameter to an outer diameter. The outer diameter engages the head, and the inner diameter is in close proximity to and engagement with the pin, which slides axially relative to the sleeve. The head and sleeve include first and second interlocking features that cooperate with one another to retain the sleeve in the aperture. The sleeve is arranged inboard from an outer face of the head, which is used to support a work piece.

Abstract: Provided is a laser processing apparatus for a light guide plate capable of providing a high-quality light guide plate by maintaining a light path at a constant level. The laser processing apparatus includes a plurality of reflecting mirrors that reflect a laser mirror; and a path adjustment block transported in a direction a distance of the light path is reduced when a laser emitting unit is transported in a direction in which the distance of the light path is increased, wherein at least one of the plurality of reflecting mirrors is installed in the path adjustment block, thereby maintaining the distance of the entire light path on which the laser beam propagates at a constant level.

Abstract: An exemplary system and method for welding a piston assembly includes a piston assembly having a cooling gallery and a loose granulated medium positioned therein. The cooling gallery is formed by a piston body and a cooling gallery ring, and a welder such as a laser welder is positioned proximate the assembly to weld the piston body to the cooling gallery ring. During welding, the assembly is rotated and the loose granulated medium is caused to remain in a gravitationally low portion of the cooling gallery. The weld is formed in an area proximate the loose granulated medium such that weld spatter emitted during welding is emitted into the loose granulated medium.

Abstract: This invention relates to slicing a thin semiconductor substrate from side wall into two substrates of half thickness. The substrate slicing process involves a laser irradiation step. The substrate slicing process can also involve a mechanical cleaving process after the laser irradiation step. The apparatus for substrate slicing comprises two opposite-facing substrate chucks, with a gap in between for the substrate to pass through. One portion of the two substrate chucks are in parallel to each other to center the substrate sidewall. The gap can increase between the second portion of the two substrate chucks after the location for substrate separation, to spread out the resulting two substrates after the slicing and to facilitate the continuous substrate separation process. The present invention is further directed to methods and apparatus of separating a continuous thin layer of materials from side wall of a rotating ingot.

Abstract: A method for manufacturing submounts for laser diodes includes the steps of providing a base configured with a ceramic carrier and a metal layer deposited upon the substrate. The method further includes using a pulsed laser operative to generate a plurality of pulses which are selectively trained at predetermined pattern on the metal layer's surface so as to ablate the desired regions of the metal layer to the desired depth. Thereafter the base is divided into a plurality of submounts each supporting a laser diode. The metal layer includes a silver sub-layer deposited upon the ceramic and having a thickness sufficient to effectively facilitate heat dissipation.

Abstract: Three systems for the destruction of the data storage portion of electronic media storage devices such as hard disk drives, solid state drives and hybrid hard drives. One system utilizes a mill cutter with which the hard drive has relative motion in the direction of the axis of the mill cutter to destroy the data storage portion. A second system utilizes a laser to physically destroy the data storage portion. The third system utilizes a chemical solvent to chemically destroy the data storage portion.

Abstract: A hybrid laser arc welding assembly including a gas metal arc welding torch and a laser arc welding laser head. The torch and laser head are disposed adjacent one another and aimed at targets of a pair of work pieces spaced from one another such that the melted material produced by the torch overlaps with the melted material produced by the laser head, and therefore, the torch and laser head combine to create a hybrid laser arc weld to join the work pieces. The laser head is adjustable dynamically relative to the work-pieces to optimize the hybrid laser arc weld.

Abstract: An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.