Abstract: A metal shell of an electronic device and a method for fabricating the metal shell are provided. The method for fabricating the metal shell includes: stamping out a side wall and a bottom portion of the metal shell from a metal sheet, wherein the stamping retains a reserved material at a first position on the side wall; bending and shoving the reserved material on the side wall towards an inner side of the side wall, until a protruding portion is formed at the inner side of the side wall; removing an excessive portion of the protruding portion to shape the protruding portion into a plastic gripping structure of a preset shape; and injecting and filling the plastic gripping structure with plastic.

Abstract: A machine for forming, using a pressurized fluid, and for profiling, using profiling tools, a metal tubular product, for instance a pipe, in one and the same work cycle. In particular a machine for forming a tubular product in two different portions thereof by using one injector only and forming the tubular product in two different non-adjacent portions by using two injectors.

Abstract: Provided is a method for manufacturing a gasket-constituting plate made of metal, in which a folded-back part whose thickness is set to be less than the thickness of a general part is provided at a periphery of a combustion chamber hole. The method includes, with a raw metal plate being held between a blank holder and a drawing die having an extrusion hole, extruding the raw metal plate in a thickness direction thereof by using a drawing punch as an extrusion tool to form a projecting part in the raw metal plate, and causing a tensile force to act on the raw metal plate due to the extrusion so as to elongate the raw metal plate, to form a thin peripheral wall part at an outer peripheral portion of the projecting part.

Abstract: A punch die is provided and includes a punch body extending along an axial direction of the punch die and including a punch edge portion, a key, and a punch driver. The punch die also includes a punch guide configured to removably receive the punch body therein, the punch guide including an inner hollow that receives the punch body and a keyway that receives and guides the key. The punch die further includes a retainer collar detachably coupled to the punch guide and configured to permit the punch driver to pass therethrough and be movable along the axial direction. The punch guide includes a peripheral slot that intersects the keyway of the punch guide and the retainer collar includes a cylindrical projection and an engaging projection that is rotatable to engage the peripheral slot and to be releasably aligned with the keyway.

Abstract: Canted coil spring rings each with a first plurality of coils having first coil major and minor axes; a second plurality of coils each having second coil major and minor axes; the coils of the first plurality of coils alternating with the coils of the second plurality of coils according to an alternating pattern. The spring rings having inner and outer perimeters and wherein the inner perimeter of the spring ring is defined by at least said first plurality of coils. The resulting configuration of the spring ring has improved spacing along the inner perimeter, among others, with respect to a similar canted coil spring ring having a constant coil cross section, such as a coil length with all similar coils.

Abstract: A mounting assembly for a spot-joining apparatus comprises a first support arm (24). The first support arm (24) has a mounting surface (26), and receiving portion configured to receive an actuator or an anvil. The mounting assembly also comprises an alignment bracket (28) configured to engage with the actuator or anvil. The alignment bracket (28) is movable between a plurality of locations on the mounting surface (26) of the first support arm (24). The mounting assembly further comprises a clamp assembly (52, 29, 66a, 66b, 70, 70b or 52, 29, 88, 92, 98, 90, 96) configured to secure the alignment bracket (28) in any of the plurality of locations.

Abstract: A forging method serving to use shaping tooling suitable for high temperature forging of a preformed metal part having angular twist undercuts (49) in its final shape, the method comprising placing the preformed metal part on a movable central insert (44) of the tooling and blocking it in the tooling (40), and forming side fins of the preformed metal part (30) in their final shape by moving a movable top first die and the movable central insert in a common direction towards a stationary bottom die, the movable central insert including at least two cutaway zones (20, 52) for eliminating the angular twist undercuts and thus enabling the preformed metal part in its final shape to be dislodged in a single extraction direction.

Abstract: To provide a binder composition for molding, by which a mold made of aggregate has an excellent resistance to moisture. The binder composition for molding contains a water-soluble binder and at least one kind of lithium salt that is selected from a group of lithium silicate, lithium oxide, lithium hydroxide, lithium carbonate, lithium bromide, lithium chloride, lithium nitrate, and lithium nitrite.

Abstract: A method of reusing core sand includes crushing a core used for casting into granules; heating the granules at a temperature of 300° C. to 550° C.; causing the heated granules to collide against each other such that water glass used as a binder detaches from the core sand; and blowing air into a mixture of the water glass and the core sand, which are detached from each other, such that the core sand is separated and collected from the mixture due to a difference in specific gravity between the water glass and the core sand.

Abstract: An injection assembly (1) of a die-casting machine is provided with electronic control means (300) of the valves, configured and programmed for carrying out a plurality of diagnostic tests on said valves. The test management program provides for the execution of a test for each valve and the comparison of parameters detected during said test with a predefined interval or with a threshold value. Furthermore, means are provided for displaying the results of the diagnostic tests.

Abstract: An injection assembly (1) of a die casting machine comprises valve means for controlling the advancement and return of the injection piston (20) and of the multiplier piston (42). The valve means comprise a plurality of valves, including a proportional delivery valve (104), a proportional injection discharge valve (112) and a proportional multiplier valve (118). Electronic control means (300) are provided which are configured and/or programmed to execute an air purge cycle which performs the opening and closing of the valves, alternately, for a predetermined number of times.

Abstract: A method for producing a rotor blade for a gas turbine, the blade having a fastening region and a platform, on which a blade ending in a blade tip is arranged. The method is designed to facilitate a particular high efficiency of the gas turbine with a particularly resource-saving manner of production. The method includes: production of a reinforcement; casting of a first part of the rotor blade about at least one portion of the reinforcement; and construction of a second part of the rotor blade by a 3D-printing method.

Abstract: Methods and systems for casting and thermoplastically forming bulk metallic glass articles are described. A molten alloy can be fed into a mold with a three-dimensional shape and a cavity. The mold is configured such that multiple two-dimensional cross sections of the cavity of the mold are different from one another in multiple first mathematical planes intersecting the cavity displaced from one another in a direction normal to the mathematical planes intersecting the cavity. Cooling the molten alloy in the mold provides one or more near net shape bulk metallic glass castings, can be thermoplastically formed using forms at a temperature above Tg to provide a bulk metallic glass article with a desired final shape.

Abstract: An apparatus and a method for moulding battery components using an apparatus include a mould block having a plurality of mould cavities; a molten metal feed trough adjacent to the mould block and extending in a generally longitudinal direction along the mould block; a plurality of weirs between the feed trough and each of the cavities; and a supply for providing molten metal to the trough. The feed trough is provided with at least one volume adjustment mechanism, which is operable to alter the volume of the feed trough.

Abstract: A 3D printing method includes mixing a sintered component which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys, with at least one surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride, in a powder mixture; and laser sintering or laser melting the powder mixture in a selective laser sintering method or a selective laser melting method.

Abstract: An additively manufactured assembly including an additively manufactured component with an edge oriented with respect to a recoater blade direction and an non-contact support that does not form a part of the additively manufactured component, the additively manufactured support located adjacent the edge. A method of additively manufacturing a component includes additively manufacturing an component with an edge oriented with respect to a recoater blade direction simultaneous with additively manufacturing an non-contact support that does not form a part of the component, the additively manufactured support located adjacent the edge.

Abstract: An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a feed material dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material, and a coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused.

Abstract: A scanning technique for the additive manufacturing of an object. The method comprises the irradiation a portion of a given layer of powder to form a fused region using an energy source. When forming an object layer by layer, the irradiation follows a first irradiation pattern at least partially bounded by a stripe region. When forming the first fused region using a first irradiation pattern a first series of solidification lines are formed, at angle other than 90° with respect to a substantially linear stripe region boundary. A series of second solidification lines are formed that intersecting the end of the first solidification line at a first angle other than 0° and 180° with respect to the first solidification line. A third series of solidification lines are formed that are substantially parallel to a first series of solidification lines and intersect one of the second solidification lines.

Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.

Abstract: First subareas of a layer of powder applied on a substrate are heated locally with a process beam so as to heated, but not yet interconnect the grains of the powder in the first subareas. A temperature profile of the applied layer is evaluated proximate to the first subarea as a function of the distance from the respective first subarea and/or the time. The local thermal conductivity and/or local diffusivity are determined for the respective first subarea based on the temperature profile. Second subareas of the applied layer which at least partially overlap the first subareas are then heated locally with the process beam so as to interconnect the grains of the powder in the second subareas. A process variable of the process beam influencing heating of the second subareas is determined based on the local thermal conductivity or diffusivity previously determined for the at least partially overlapping first subarea.

Abstract: An apparatus for temperature control in additive manufacturing may include: an optical beam source configured to generate one or more optical beams; a homogenizer configured to flatten an irradiance profile of the generated one or more optical beams; and/or an optical system configured to form the generated one or more optical beams so as to match a portion of a shape of a powder bed. The apparatus may include optical beam sources configured to generate two or more optical beams; and/or an optical system configured to form the generated two or more optical beams to match the portion of the shape of the powder bed. The apparatus, using the formed one or more optical beams with the flattened irradiance profile or using the formed two or more optical beams, may be configured to pre-heat the powder bed prior to fusing and/or to post-heat the fused powder bed.

Abstract: A method for producing an abradable seal for a turbomachine, such as a turbojet engine low-pressure compressor. The method comprises the following steps performed as follows: (a) preheating of a metal mould in a furnace; (b) filling of the hot mould with a powdery aluminium-based mixture; (c) degassing of the mixture in the mould; (d) compacting of the mixture in the still-hot mould at ambient temperature, so as to solidify the mixture in the mould. The abradable seal is thus produced in angular segments that form tiles. The angular segments are then bonded into a composite casing of the turbomachine.

Abstract: A method for sintering includes loading a tool material into a resistance heating element within a HPHT press and heating the resistance heating element at a first axial portion to a control temperature, where a temperature difference is measured between the control temperature and a second temperature measured at a distal axial portion along the resistance heating element, wherein a difference between the control temperature and the second temperature ranges between about 5 percent to about 11 percent of the control temperature.

Abstract: In an embodiment, an insert includes an upper surface including a corner part, a lower surface, a side surface, and a cutting edge. The side surface is between the upper surface and the lower surface. The cutting edge is at least at a part of a first region in which the upper surface intersects with the side surface. The cutting edge includes a first cutting edge at the corner part, a second cutting edge, a third cutting edge, and a fourth cutting edge. The second cutting edge is next to the first cutting edge, and also next to the third cutting edge. The third and fourth cutting edges: each have a convex curvilinear shape with first and second radii of curvature, respectively; and extend downward and upward, respectively, in a side view as going farther from the second cutting edge. The second radius smaller than the first radius.

Abstract: A cutting tool includes a tool holding system having a clamping portion. The clamping portion includes an integrally formed one-piece inner coupling member that at least partially forms a clamping sleeve portion having a clamping bore for clampingly receiving a cutting insert. The clamping portion also includes an integrally formed one-piece outer coupling member that is circumferentially disposed about at least a portion of the inner coupling member. The tool holding system also has a mounting portion that is connected to one of the inner and outer coupling members. The inner and outer coupling members are captively and non-releasably engaged with each other via inter-engaged first and second engagement surfaces that are slidingly displaceable with respect to each other.

Abstract: An auger bit for cutting holes. The auger bit includes a body made of a first material. The body has a first end, a second end configured to be coupled to a power tool, a flute, and a longitudinal axis extending centrally through the body. The auger bit also includes a cutting tip made of a second material different from the first material. The cutting tip is coupled to the first end of the body. The cutting tip includes a first shoulder having a first spur, a first main cutting edge, and a first side cutting edge. The cutting tip also includes a second shoulder opposite the first shoulder and having a second spur, a second main cutting edge, and a second side cutting edge. The cutting tip further includes a center spur positioned between the first shoulder and the second shoulder and on the longitudinal axis.

Abstract: A machine is disclosed for use in duplicating features of an existing key within a key blank. The machine may have an identification module configured to capture data associated with the features of the existing key, a fabrication module configured to cut the features in the key blank based on the data, a user input device, and a controller in communication with the identification module, the fabrication module, and the user input device. The controller may be configured to regulate operation of the identification module and the fabrication module, and to receive input from a user via the user input device. The input may be indicative of the user being a first type of user or a second type of user. The controller may also be configured to selectively implement one of a first mode of operation or a second mode of operation based on the input.

Abstract: The present invention discloses a ring cutter and ring cracker intended for use by medical personnel. The ring cutter employs a tissue guard that slips under the ring to protect the patient's finger or other appendage. A clipper head is inserted into the tissue guard. The tissue guard does not move and prevents the jaws of the clipper from injuring the patient. The tissue guard may be constructed of plastic that will break away after use to prevent contamination between patients. The invention also incorporates a ring cracker for breaking tungsten or ceramic rings. A recess in a ring base in one of the arms of the ring clipper retains a part of a ring. In the other arm, a threaded bolt with a hardened tip extends toward the ring. The arms of the clipper can be locked by a bar in a fixed position. A knob on the bolt allows a hardened tip at the end of the bolt to exert pressure on the tungsten or ceramic ring until it cracks, without injury to the patient.

Abstract: An outdoor power tool may include an engine, a working assembly that performs a cutting operation powered by the engine, movement sensor circuitry configured to at least determine movement information of the outdoor power tool using inertia based measurements locally determined at the outdoor power tool, and a position monitoring module including processing circuitry configured to receive the movement information and receive an input defining a reference point. The position monitoring module may be further configured to provide feedback to an operator of the outdoor power tool to direct operation of the outdoor power tool based on the movement information.

Abstract: A portable cutting table, with SLIDE, and a TABLE, an adjustable BACKPLATE to support material being cut, and a BASE, all which support a JIG SAW, mounted upside down on the SLIDE, to allow easy control of cutting to Molding, Millwork, Stair Edging, angled cuts, with easy control of motor/blade speed, and easy visibility of cutting markings on the material being worked upon.

Abstract: A saw blade for cutting stalk crops, such as for example maize or millet, has a planar flank and a facet flank and a sawing edge with a succession of saw teeth. The saw teeth are provided with a wear protection zone, the wear resistance of which is greater than that of a material of the base body of the saw blade. The wear protection zone is respectively located on the planar flank of each saw tooth. The saw teeth in the region of the tooth face have a cutting facet, starting from the facet flank. The cutting facet is configured at a distance from the planar flank of the saw tooth to form a blunt tooth cutting edge and, in a preferred embodiment, the cutting facet and the facet flank are configured without a wear protection zone.

Abstract: A device and associated system for threading, cutting, and reaming pipe ends. The device and system utilize a brushless DC electric motor. The devices also include on-board electronics and operator interface(s) to provide sophisticated control and information as to the various operations. Methods of operating the devices and several different modes for performing various operations.

Abstract: A resistive soldering method, assembly of antenna and glass, and resistive soldering system are provided. The method includes providing glass and an antenna component including a base structure and a cylindrical structure having a hole on a front surface of the base structure; forming solder on a surface to be soldered of the glass or a surface to be soldered of the base structure; resistive soldering the surfaces to be soldered of the glass and the base structure to melt the solder, wherein during the resistive soldering process, first and second electrodes are used to apply pressure and heating current to edge portion on the front surface of the base structure, and a support cylinder is inserted into the hole and applies to the antenna component a pressure for attaching the antenna component to the glass.

Abstract: The invention relates to the field of construction, particularly to welding of above- and underground high-strength pipelines with controlled heat input. Application of the invention will increase the load-bearing capacity of the pipelines made with the use of butt-welded pipes, pipe spools, pipe strings. The method includes joining of two or more cylindrical metal pipes, pipe spools and pipe strings by the welded ring butt with the use of the arc welding for the whole perimeter of the pipe. Criteria for a high-quality welded joint include optimal selection of parameters of the welding thermic cycle. The suggested welding method allows to have the optimal structure, high strength and viscoplastic properties in areas of the welded joint, to provide for the required load-bearing capacity of the pipeline and its reliability during operation.

Abstract: Embodiments of modular-based power supply systems to support welding or cutting operations are disclosed. One embodiment includes a module rack having multiple slots configured to accept electrical input power from a single power drop within a welding or cutting environment. Multiple power supply modules are provided that are configured to be inserted into and withdrawn from the multiple slots. Each power supply module is configured to accept an electrical AC input derived from the electrical input power and provide an electrical DC output. The module rack is configured to support reconfigurable parallel electrical connections of subsets of the power supply modules. Each subset is configured to electrically connect to an output power supply stage to provide a dynamic waveform-controlled welding or cutting electrical signal to support generation of a single arc between an electrode and a workpiece.

Abstract: The wire feed mechanism includes a feed roll, a pressure roll, a pressure arm, and a pressure mechanism. The feed roll rotates around a rotation axis. The pressure roll is displaceable relative to the feed roll. The pressure arm has a first end and a second end that are separate from each other, and rotatably supports the pressure roll. The pressure mechanism engages with the pressure arm so that a pressure force is applied from the pressure roll to the feed roll with a wire held between the feed roll and the pressure roll. A force-receiving portion is provided at an end of the pressure arm. When the pressure roll presses the feed roll, the pressure mechanism applies a force to the force-receiving portion in a direction that is substantially parallel to the direction in which the wire is fed.

Abstract: A method and device for gas metal arc welding, wherein a current-carrying wire electrode is melted by an arc, and wherein gas metal arc welding is performed using a filler metal, which contains at least one constituent that releases deleterious emissions through evaporation, wherein a composition that does not contain this constituent is selected for the wire electrode, and a dead weld metal containing this constituent is fed to the arc and/or a molten bath without a current.

Abstract: A plasma computer numerically controlled (CNC) cutting machine is controlled by a computer s. In an embodiment, the computer executes a CNC program to control movement of a plasma torch to cut parts from a workpiece while a spectrometer determines emissions spectra of light emitted in a brief time window as the torch begins to cut the workpiece. The spectrometer cooperates with the computer to analyze the metal as it is being cut by the CNC cutting machine and determine a composition. In embodiments, the composition is compared to an expected composition and saved in a database with identifying information; in a particular embodiment the database is queried to provide identifying information of metal having similar composition to the workpiece.

Abstract: A welding tip (20) for spot welding a first part (22) formed of conductive metal, for example aluminum, to a second part (24) formed of aluminum or another conductive metal, such as steel, is provided. The welding tip (20) includes a notch (30) at a distal end (38) and a convex contact surface (28) extending radially outwardly and upwardly from the notch (30) for engaging a surface of the first part (22). The rotating welding tip (20) forms a depression (32) on the surface of the first part (22) during the welding process. The notch (30) creates a pin (34) in the center of the depression (32) which provides a fixed axis of rotation for the rotating welding tip (20) and prevents the welding tip (20) from moving radially relative to the fixed axis, thereby improving the quality of the final spot weld (36) and reducing process time.

Abstract: A direct resistance heating simulation method is provided. In this method, a welding region and its peripheral region of steel sheets to be welded by a pair of electrodes are divided into a plurality of elements. A coupled analysis is performed such that a temperature, a metal structure, stress and strain at each element are determine in a mutually associated manner based on Joule loss obtained through a current analysis and a magnetic field analysis for each element. The coupled analysis is repeated to predict an effect of one or more parameters, including at least one of a frequency, a magnitude and an application time of electric current to be applied to the electrodes, a cooling time, a pressure applied from the electrodes to the steel sheets and a shape of the electrodes, on welding quality after a post-heating by direct resistance heating and to improve weld strength.

Abstract: A spot welding electrode of a donut-shaped electrode wherein even when a welded member of a steel sheet is slanted with respect a plane perpendicular to an axis of the spot welding electrode, a cross tensile strength (CTS) of the spot welded joint can be improved. The donut shape spot welding electrode according to the present invention has an electrode tip and an electrode support. The electrode tip contacts the electrode support to be able to move. Due to this, it is possible to strikingly raise the ability of the donut-shaped electrode to track a steel sheet and make the entire surface of the donut shape contact-and-conduction part contact the steel sheet, so it is possible to secure a high CTS value even if the steel sheet is slanted.

Abstract: A metal wiring bonding structure 100 comprises contacts 753 of connection FPC 75 and heater lands 46 of a sheet heater 30 to be bonded by a solder bonding member 766. A connection FPC 75 includes contact opposed lands 754 famed of metal and disposed at positions respectively opposed to the plurality of contacts 753 on a surface of a support layer 751 opposite from a surface on which metal wires 750 are provided, and through holes 755 penetrating the contact opposed lands 754, the support layer 751, and contacts 753. Solder bonding members 756 cover surfaces of contact opposed lands 754 and are filled inside through holes 755 and in a bonding space C.

Abstract: A joining method includes abutting an end face of a first metal member in a plate shape having a projecting part on the end face on a rear face of a second metal member in a plate shape having a hole that is bored through the second metal member in a plate thickness direction and simultaneously inserting the projecting part into the hole. The method includes inserting a stirring pin of a rotary tool into an abutment portion of a wall of the hole and an outer peripheral surface of the projecting part from a front face side opposite to the rear face of the second metal member. The rotary tool is moved along the abutment portion to join the abutment portion by friction stirring. The abutment portion is joined together with only the stirring pin of the rotary tool being in contact with the first and second metal members.

Abstract: An apparatus for forming a friction weld, the apparatus comprising: a support arrangement; a holding member, which is supported by the supporting arrangement, and which may be driven to rotate with respect thereto, or move with respect thereto along an arcuate path; a consumable element having a first joining face, the consumable element being mounted in a mounting location on the holding member so that the first joining face is exposed, wherein the consumable element is rotatable with respect to the holding member about a first centre of rotation, and wherein when the holding member is driven to rotate or move with respect to the support arrangement, the first centre of rotation travels in an orbital motion with respect to the support arrangement; and at least a first alignment arrangement, positioned to hold a first workpiece in place so that an attachment face of the first workpiece is aligned with the first joining face of the consumable element.

Abstract: An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation. The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along the optical axis of the aspheric focusing lens. The elongated focus extends through the full thickness of a workpiece made of a brittle material. The workpiece is cut by tracing the optical axis along a cutting line. Each pulse or burst of pulsed laser-radiation creates an extended defect through the full thickness of the workpiece.

Abstract: A laser machining apparatus includes a scanner head having at least two galvanometer mirrors and galvano motors, a moving means for moving the scanner head, a movement control apparatus for controlling the moving means, and a scanner control apparatus having a galvano motor control unit for controlling rotational driving angles of the galvano motors. The movement control apparatus has a rotation angle detection unit for detecting a rotation angle of the scanner head with respect to the moving direction. The scanner control apparatus has a mirror angle calculation unit for calculating, from data on the rotation angle, rotational driving angles of the mirrors so that an intersecting direction of the laser beam corresponds to a predetermined direction with respect to the moving direction. The galvano motor control unit controls the galvano motors so that the rotational driving angles calculated by the mirror angle calculation unit are set.

Abstract: A laser machining method, including: liquid supplying into a rectifying chamber; the rectifying chamber attenuating disturbances in flow of the liquid supplied; a liquid injecting into a liquid oscillating chamber exclusively from one direction from a liquid inlet port arranged on only one portion of a sidewall of the liquid oscillating chamber; the liquid jetting as a jet liquid column into air from a nozzle; a laser beam focusing on the axis of the nozzle and guiding to a machining point by the jet liquid column; a surface wave of the jet liquid column generating and gradually increasing in amplitude in the direction away from the nozzle; a body of the jet liquid column atomizing when the jet liquid column strikes the workpiece on the machining point.

Abstract: The present disclosure relates to an industrial device, such as a drill bit that may be fabricated by performing a first coupling process that includes activating an attachment material between a first cutter element and a first recess of a bit body, monitoring a temperature associated with the first cutter element by a camera, and adjusting one or more parameters associated with the laser in response to output from the camera. The process may be repeated for a plurality of cutter elements. The disclosure further includes the process and a system to perform the process.

Abstract: Apparatus for laser welding a first metal part (1) to a second metal part (2), which apparatus comprises: a laser (3) which emits a laser beam (6) in the form of laser pulses (21), a scanner (4) for moving the laser beam (6) with respect to a metal surface (7) of the first metal part (1), an objective lens (5) which focuses the laser beam (6) onto the metal surface (7), and a controller (12) which controls the scanner (4) such that it moves the laser beam (6) with respect to the metal surface (7) to a plurality of focussed spots (16), characterised in that the apparatus focuses the laser pulses (21) with a spot size (34) and a pulse fluence (36) that causes the formation of a plurality of melt pools (19) in the first metal part (1) and heat stakes (17) in the second metal part (2), each heat stake (17) extends from a different one of the melt pools (19) and has a distal end (101), and the controller (12) spaces the focussed spots (16) apart by a distance (18) that is small enough to cause the melt pools (19)

Abstract: In various embodiments, metallic wires are fabricated by combining one or more powders of substantially spherical metal particles with one or more powders of non-spherical particles within one or more optional metallic tubes. The metal elements within the powders (and the one or more tubes, if present) collectively define a high entropy alloy of five or more metallic elements or a multi-principal element alloy of four or more metallic elements.