Patents Issued in May 7, 2020
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Publication number: 20200139439Abstract: A capsule 2 for HIPing comprises a rigid, self-supporting additive manufactured (AM) component 3 which is welded to inner and outer cylindrical liners 4, 6 through which cooling channel tubes 8, 10 extend. A solid end plate 11 is welded to ends of the liners 4, 6 and tubes 8, 10 extend through the end plate 11 and open to the outside. A fill tube 12 communicates with an annular void 14 defined between liners 4, 6 which is filled with powder 16. In use, the capsule 2 is subjected to Hot Isostatic Pressing (HIP). Thereafter, the inner and outer liners 4, 6 are removed to define a valve seat assembly comprising the AM component 3, tubes 8, 10, HIPed powder 16 and end plate 11.Type: ApplicationFiled: July 3, 2018Publication date: May 7, 2020Inventors: David JOHN, Susan DAVIES
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Publication number: 20200139440Abstract: The disclosure relates to thermoelectric materials prepared by self-propagating high temperature synthesis (SHS) process combining with Plasma activated sintering and methods for preparing thereof. More specifically, the present disclosure relates to the new criterion for combustion synthesis and the method for preparing the thermoelectric materials which meet the new criterion.Type: ApplicationFiled: October 29, 2019Publication date: May 7, 2020Inventors: Xinfeng TANG, Xianli SU, Qiang ZHANG, Xin CHENG, Dongwang YANG, Gang ZHENG, Fan FU, Tao LIANG, Qingjie ZHANG
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Publication number: 20200139441Abstract: A method for manufacturing a sintered body, the method including heating a mixture that contains a plurality of particles of a metal oxide having a spinel-type structure, and a metal acetylacetonate under pressure at a temperature of from a melting point or higher of the metal acetylacetonate to 600° C. or lower, to form a sintered body that contains the metal oxide having the spinel-type structure.Type: ApplicationFiled: December 24, 2019Publication date: May 7, 2020Inventor: SHUICHI FUNAHASHI
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Publication number: 20200139442Abstract: A method for manufacturing a sintered body, the method including heating a mixture that contains a plurality of particles of a metal oxide having a spinel-type structure, and a metal acetylacetonate under pressure at a temperature of from a melting point or higher of the metal acetylacetonate to 600° C. or lower, to form a sintered body that contains the metal oxide having the spinel-type structure.Type: ApplicationFiled: December 24, 2019Publication date: May 7, 2020Inventor: SHUICHI FUNAHASHI
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Publication number: 20200139443Abstract: The present disclosure provides a polycrystalline diamond compact (PDC) including a substrate and a polycrystalline diamond table including a sintering aid compound, a dissociated non-sintering aid component, a derivative compound, or a mixture thereof and further including dissociated sintering aid. The disclosure further provides an earth-boring drill bit containing a bit body and the PDC in the form of a cutter. The disclosure also provides a method of forming a PDC including placing a substrate and a mixture of diamond grains and a sintering aid compound in a can and performing an HTHP process to form a PDC including the substrate and a polycrystalline diamond table formed from the diamond grains and the sintering aid compound and including the sintering aid compound, a dissociated non-sintering aid component, a derivative compound, or a mixture thereof and dissociated sintering aid.Type: ApplicationFiled: October 27, 2016Publication date: May 7, 2020Inventor: Gagan Saini
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Publication number: 20200139444Abstract: A method for manufacturing a sendust core using a sendust core material including aerosolized sendust powder having granularity of 5-20 microns, having a spherical shape, and having 8.5-10.0% of silicon, 5.5-6.3% of aluminum, and a balance of iron includes heating the sendust powder to 60-100° C.; preparing a binder; mixing the binder with the clay powder; adding a powdered lubricant into the finished powder and mixing same; and heat treating the pressed blank in a sintering furnace to obtain the sendust core.Type: ApplicationFiled: December 17, 2019Publication date: May 7, 2020Inventors: Changqing Sun, Lili Chen
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Publication number: 20200139445Abstract: Techniques are disclosed for milling an iron-containing raw material in the presence of a nitrogen source to generate anisotropically shaped particles that include iron nitride and have an aspect ratio of at least 1.4. Techniques for nitridizing an anisotropic particle including iron, and annealing an anisotropic particle including iron nitride to form at least one ??-Fe16N2 phase domain within the anisotropic particle including iron nitride also are disclosed. In addition, techniques for aligning and joining anisotropic particles to form a bulk material including iron nitride, such as a bulk permanent magnet including at least one ??-Fe16N2 phase domain, are described. Milling apparatuses utilizing elongated bars, an electric field, and a magnetic field also are disclosed.Type: ApplicationFiled: January 8, 2020Publication date: May 7, 2020Inventors: Jian-Ping WANG, YanFeng JIANG
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Publication number: 20200139446Abstract: Systems, methods, and devices are disclosed for producing quantum particles (e.g., quantum dots) having a uniform size by vaporization of molten precursor droplets. More particularly, the present technology produces quantum dots by melting or liquefying solid and substantially pure precursor materials followed by production of uniformly sized droplets of molten precursor by use of a droplet maker into a microwave generated plasma torch.Type: ApplicationFiled: December 17, 2019Publication date: May 7, 2020Applicant: Amastan Technologies LLCInventors: Kamal Hadidi, Gregory Wrobel
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Publication number: 20200139447Abstract: A weld bead cutting device is configured such that, a liner made as liner portions are abutted on and welded to each other is rotated around a rotation axis extending in a direction along an abutting direction, and a weld bead is cut with a cutting tool arranged among rollers in a state where the rollers are pressed against an outer peripheral surface of the liner, the rollers being arranged on both sides of the weld bead on the liner in a direction along an extending direction of the rotation axis.Type: ApplicationFiled: October 3, 2019Publication date: May 7, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Miki KIMURA
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Publication number: 20200139448Abstract: A cutting insert is provided, comprising a top surface, a bottom surface, a plurality of side surfaces spanning therebetween, and a cutting edge formed at an intersection of the side surface and a forwardly-disposed portion of the top the surface. It further comprises a cooling cavity projecting into the insert, a top end thereof being disposed further forwardly than an open bottom end thereof. The cooling cavity defines at least one molding axis such that a solid element having the shape of the cooling cavity and completely inserted therein may be retracted intact therefrom along a linear path parallel to the molding axis. A circumscribing portion is formed on the side surfaces encircling the cutting insert. The circumscribing portion is formed parallel to the molding axis and has a non-zero height along its entire extent. The cutting insert does not extend beyond the circumscribing portion.Type: ApplicationFiled: January 9, 2020Publication date: May 7, 2020Inventor: Gershon HARIF
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Publication number: 20200139449Abstract: A quick coupling unit for bar loader clamps includes an end shaft that can be accommodated rotatably within a corresponding seat of a tubular body that is integral with the bar pusher of said loader and an element for stable coupling to the terminal stem of the respective clamp. The element includes a sleeve provided with a recess whose shape and dimensions are complementary to those of an insert which can be accommodated in said recess. The quick coupling unit also includes a locking ring having a variable inside diameter that surmounts said sleeve, the rotation of the ring to a first configuration defines clamping of the insert within the recess and locking of the stem, and to a second configuration defining radial freedom of the insert and free exit of the stem.Type: ApplicationFiled: July 7, 2017Publication date: May 7, 2020Inventors: Andrea GHINASSI, Marco MALUCELLI
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Publication number: 20200139450Abstract: A hand-tight drill chuck with a lock and self-locking structure including an elastic piece with an arcuate portion, arranged on a ring member threadedly connected to a clamping claw. The two ends of the arcuate portion are restricted. The elastic piece has a locking portion and groove or protrusion that cooperate with teeth between two ends of the arcuate portion. The drill chuck has a rotation sleeve with control structure. The control structure includes a metal member with elastic portion having a protrusion or groove that cooperate with the groove or protrusion. When the groove or protrusion of the elastic piece withstands against and is engaged with the protrusion or groove of the metal member via elasticity, the drill chuck is in a self-locking state. This ensures a locking torque and unlocking torque by elastic match between an elastic force which is not slack.Type: ApplicationFiled: October 24, 2019Publication date: May 7, 2020Inventor: Xiangyu LI
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Publication number: 20200139451Abstract: A chuck includes a hollow mounting part including a conic connection member and a lower support member; a hollow collet including a clamping member partially disposed in the support member and having an axial channel, longitudinal gaps on a surface, each gap having an open bottom, and latches each between two adjacent gaps in which a drill bit is partially inserted into the channel; and a fastener put on both the mounting part and the collet to secure to the support member with the clamping member partially disposed in the fastener, the latches fastened in the fastener, and the drill bit fastened in both the fastener and the channel.Type: ApplicationFiled: November 1, 2018Publication date: May 7, 2020Inventor: Peter CHEN
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Publication number: 20200139452Abstract: A chuck includes a mounting part including a conic connection member and a support member in which an end of the connection member is mounted to a predetermined device, and the support member has an axial channel; and a collet partially disposed in the channel and including an axial slit for receipt a portion of a drill bit, longitudinal first gaps on a surface, each first gap having an open end, and first latches each formed between two adjacent first gaps. In response to a force exerted on the first latches, the first latches are flexibly deformed to clamp the drill bit. The mounting part further includes second latches each formed between two adjacent second gaps.Type: ApplicationFiled: November 1, 2018Publication date: May 7, 2020Inventor: Peter CHEN
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Publication number: 20200139453Abstract: A new, innovative tool useful in fluidly coupling a lateral pipeline to a reinstated pipeline containing a continuous liner is provided. The pipeline reinstatement tool includes a flexible shaft that is coupled to a cutting head at a first end and a coupling assembly at a second end. The cutting head includes a hollow cylindrical member having cutting teeth that project longitudinally from the first end of the hollow cylindrical member. The tool includes a first compressible tensioner portion disposed about the flexible shaft proximate cutting head, a second compressible tensioner portion disposed about the flexible shaft proximate the coupling assembly, and a flexible sleeve portion disposed about the flexible shaft between the first compressible tensioner portion and the second compressible tensioner portion.Type: ApplicationFiled: July 26, 2019Publication date: May 7, 2020Applicant: HURRICANE REINSTATEMENT SOLUTIONS, LLCInventor: Michael Gesty
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Publication number: 20200139454Abstract: The method of locating hole features so that old components can be replaced with new components and still match fit with the airframe includes the steps of adhering a bushing assembly into a fixture plate, rigidly attaching the fixture plate with the bushing assembly to the old component, heating the liquid metal above the liquid metal melting temperature such that the cylindrical drill bushing can move within the assembly, inserting an alignment pin within the cylindrical drill bushing such that the alignment pin is also inserted into an existing hole in the old component and the airframe, allowing the liquid metal to re-solidify; removing the alignment pin from the old component, replacing the old component with the new component, and using the re-solidified assembly as a drill guide for replacing holes in the new component.Type: ApplicationFiled: December 20, 2019Publication date: May 7, 2020Applicant: United States of America as represented by the Secretary of the NavyInventors: Matthew Ignarski, Jonathan Vezzosi, Jason Burns
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Publication number: 20200139455Abstract: Disclosed is a hole cutter capable of reducing a cutting load applied to a carbide tip during hole machining and improving cutting efficiency and workability. The hole cutter includes a cylindrical body, and a plurality of carbide tips disposed along an edge of the body. The carbide tips include a first carbide tip, a second carbide tip, and a third carbide tip. Assuming a circle which has a center coinciding with the body center and is in contact with a sharp tip of an upper surface portion of the first carbide tip, the second carbide tip is formed so that the sharp tip of an upper surface portion thereof is positioned at an inner region of the circle, and the third carbide tip is formed so that the sharp tip of an upper surface portion thereof is positioned at an outer region of the circle.Type: ApplicationFiled: December 21, 2018Publication date: May 7, 2020Applicant: TnC SHARK CO., LTDInventor: Sung Kang JO
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Publication number: 20200139456Abstract: Disclosed is a hole cutter including a unit cutting edge, the unit cutting edge including a front surface portion, an inside surface portion, an outside surface portion, and a rear surface portion. The front surface portion includes a first machined surface; and a second machined surface which has a structure which is formed with a surface distinguished from the first machined surface with respect to a first boundary line and is connected to the first machined surface along the first boundary line. The rear surface portion includes a third machined surface; and a fourth machined surface which has a structure which is formed with a surface distinguished from the third machined surface with respect to a second boundary line and is connected to the third machined surface along the second boundary line.Type: ApplicationFiled: December 21, 2018Publication date: May 7, 2020Applicant: TnC SHARK CO., LTDInventor: Sung Kang JO
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Publication number: 20200139457Abstract: A drill body and a drill are disclosed. The drill body has a rotational axis and comprises a central chip flute extending along a periphery of the drill body. A central chip flute cross-section has a centre line extending in a plane extending perpendicularly to the rotational axis, and through the rotational axis. The central chip flute cross-section has a depth, as seen along the centre line, and a width as seen perpendicularly to the centre line. The central chip flute cross-section has a maximum depth Dp within a range of Dp=0.75×D/2 to Dp=0.90×D/2, and a maximum width W within a range of W=0.75×D/2 to W=0.90×D/2, and wherein the maximum width W extends symmetrically about the centre line.Type: ApplicationFiled: May 3, 2018Publication date: May 7, 2020Inventors: Rasmus HEMPH, Hakan CARLBERG
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Publication number: 20200139458Abstract: A drill body and a drill are disclosed. The drill body has a rotational axis and includes a peripheral chip flute extending along a periphery of the drill body. A peripheral chip flute cross-section has a centre line extending in a plane extending perpendicularly to the rotational axis, and through the rotational axis. The peripheral chip flute cross-section has a radially inner side extending perpendicularly to the centre line, and first and second lateral sides connecting to the radially inner side. The radially inner side has a length L1 within a range of L1=0.95×D/4 to L1=1.2×D/4. Each of the first and second lateral sides has a length LS1, LS2 within a range of D/4 to 1.3×D/4. The first and second lateral sides diverge from each other in a direction radially outwards from the radially inner side.Type: ApplicationFiled: May 3, 2018Publication date: May 7, 2020Inventors: Rasmus HEMPH, Hakan CARLBERG
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Publication number: 20200139459Abstract: A rechargeable shear (1) includes: a motor (5) having a rotor (21) that is rotatable relative to a stator (20); a motor housing (4), which houses the motor (5); a grip housing (8) connected to the motor housing (4); a battery-holding housing (9) connected to the grip housing (8); and a shear part (3) disposed forward of the rotor 21 and operably driven by the rotor (21). The motor (5) may be brushless. The shear part (3) may be rotatable relative to the motor housing (4) using a manipulatable ring (85) and a detent system (89, 92-94). A light (48) for illuminating the shear part (3) and a workpiece being cut thereby may be provided on the grip housing (8) or the battery-holding housing (9).Type: ApplicationFiled: October 2, 2019Publication date: May 7, 2020Inventors: Hidenori NAGASAKA, Shogo TOMINAGA
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Publication number: 20200139460Abstract: A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.Type: ApplicationFiled: April 23, 2018Publication date: May 7, 2020Inventors: Dennis E. Green, Christopher Bright
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Publication number: 20200139461Abstract: The invention discloses a waste air-conditioning compressor recycling processing equipment, which includes a conveying box. The conveying box is provided with a conveying chamber with an opening facing upward. The conveying chamber is provided with a conveying device. Two left and right symmetrical fixing rods are fixedly connected, and a cutting box is fixedly connected to the fixed rods. The cutting box is provided with a cutting cavity with an opening facing downward, and the cutting cavity is provided with a power device. The lower side of the power unit is provided with a lifting device for providing the lifting movement required for cutting. The lower side of the lifting device is provided with a cutting device for cutting the compressor.Type: ApplicationFiled: January 5, 2020Publication date: May 7, 2020Inventor: Haiqiu Shu
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Publication number: 20200139462Abstract: A miter saw that includes a base, a worktable arranged on the base and defining a worktable plane, and a cutting head formed with or connected to an operating member operable by a user. The cutting head further includes a circular saw blade operative to rotate around a first axis and a motor operative to drive the circular saw blade. A fence is arranged on the worktable. The cutting head is further connected to a first guiding member configured for guiding chips to be discharged. The fence is formed with a guiding portion. The cutting head is operative to rotate around a second axis parallel to the worktable plane and, when the cutting head rotates around the second axis, the guiding portion is operative to guide the first guiding member to cross the fence.Type: ApplicationFiled: September 17, 2019Publication date: May 7, 2020Inventors: Zhifeng Chen, Yinglu Ai, Guigong Ni
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Publication number: 20200139463Abstract: A novel approach to a commercial circular saw blade designed for efficient lumber cutting as well as extended saw blade life because of a reduction in friction and better heat dispersion. The saw plate has thicker body transitioning to a thinner rim at a point between the bottom of the gullet and the bottom of the tooth, generally occurring at the hook of the gullet. This design increases the lateral stiffness of the blade, improves accuracy, maximizes sawdust ejection, eliminates blade wandering, decreases the amount of the cut waste and allows for increased cutting speeds without decreasing the performance or longevity of the blade. This design goes against traditional, prior art saw blade design because of its interpretation of wood physics, blade friction and side clearance tolerances.Type: ApplicationFiled: December 27, 2019Publication date: May 7, 2020Inventor: Warren M. Bird
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Publication number: 20200139464Abstract: An electrode guide for use in electrical discharge machining is described, along with methods for construction and use. A notch can be made in a portion of the guide to allow for greater maneuverability in situations of small clearances. An alternative embodiment uses a bridge offset to achieve greater maneuverability and range of motion.Type: ApplicationFiled: November 5, 2018Publication date: May 7, 2020Applicant: Makino Inc.Inventors: Jordan Marcincavage, Christopher J. Bingaman, William W. Grobe
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Publication number: 20200139465Abstract: Coupling device (1) for a pipe (2), including a sleeve (13) for receiving the pipe (2) and at least one sealing member (5) to provide a seal between the sleeve (13) and the pipe (2), a pressure member (6) for applying a pressure to the sleeve (13) and to the pipe (2), and a grip element (4) extending along at least a part of the perimeter of the pipe (2), wherein the grip element (4) is provided with dents (9) pressed out of the plane of the grip element (4) adjacent to slit like openings (8) punched out of the grip element (4), wherein edges (8?) of the slit like openings (8) are subjected to a peening operation.Type: ApplicationFiled: November 13, 2018Publication date: May 7, 2020Applicant: Georg Fischer WAGA N.V.Inventors: Michel HULSEBOS, Arjen Cornelis van der Molen
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Publication number: 20200139466Abstract: Fabrication of a reliable circuit board assembly with soldered, plated through-hole structures is facilitated by characterizing plating of a plated through-hole of the circuit board using time-domain reflectance to obtain a base reflectance measurement, and applying solder to the plated through-hole. Based on applying the solder, the plating of the plated through-hole of the circuit board is re-characterized using time-domain reflectance to obtain a new reflectance value. Based on a deviation between the new reflectance measurement and the base reflectance measurement exceeding a threshold, dissolution, at least in part, of the plating of the plated through-hole due to applying the solder is identified.Type: ApplicationFiled: November 1, 2018Publication date: May 7, 2020Inventors: Matthew S. KELLY, Joseph KUCZYNSKI, Scott B. KING, Bruce J. CHAMBERLIN, Matthew DOYLE
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Publication number: 20200139467Abstract: A welding system can manage wire feeders such that unused wire feeders are conveniently stowed. The welding system include two or more wire feeders individually attachable to a welding torch. The welding system includes one or more mount points to secure unused wire feeders and enable convenient swapping of an active wire feeder.Type: ApplicationFiled: September 26, 2019Publication date: May 7, 2020Inventors: STEPHEN R. COLE, RICHARD DEAN TRAVER
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Publication number: 20200139468Abstract: An additive manufacturing system includes an additive manufacturing tool configured to receive a plurality of metallic anchoring materials and to supply a plurality of droplets to a part, and a controller configured to independently control the composition, formation, and application of each droplet to the plurality of droplets to the part. The plurality of droplets is configured to build up the part. Each droplet of the plurality of droplets includes at least one metallic anchoring material of the plurality of metallic anchoring materials.Type: ApplicationFiled: December 19, 2019Publication date: May 7, 2020Inventors: Bruce Patrick Albrecht, Christopher Hsu
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Publication number: 20200139469Abstract: A method and apparatus for TIG welding and starting a TIG welding process includes limiting the pulse width of a power circuit when a TIG start is being performed, and monitoring for the creation of a welding arc. After the welding arc has been detected the limiting of the pulse width is ended.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Applicant: Illinois Tool Works Inc.Inventors: Quinn W. Schartner, Bernard J. Vogel, Andrew D. Nelson
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Publication number: 20200139470Abstract: A welding system or an enterprise using welding systems can communicate with cloud-based resources for the provision of services and products to facilitate the welding operations. The communications may be via wired or wireless media, and may be direct, or through other components, such as enterprise networks, peripheral devices, and so forth. The cloud-based resources may provide for storage of data, particularly welding data, processing of data, welding protocols, specifications and processes, financial transactions for the purchase, licensing or use of welding-related products and services, welding training, and so forth.Type: ApplicationFiled: May 21, 2019Publication date: May 7, 2020Inventor: Richard Martin Hutchison
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Publication number: 20200139471Abstract: Systems and methods to design part weld processes using media libraries are disclosed. An example system to generate weld instructions for display to a weld operator during a welding sequence, the system including: a processor; and a machine readable storage device comprising machine readable instructions which, when executed by the processor, cause the processor to: provide an interface to define a weld program comprising a sequence of weld instructions for display to a weld operator during a weld sequence; in response to an input specifying a location of an object in a media library, defining an element in the weld program based on an identifier of the object in the media library; and generating the weld program by including the identifier of the object in the media library in association with the element.Type: ApplicationFiled: November 1, 2019Publication date: May 7, 2020Inventors: Adam Pliska, Leland Falde
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Publication number: 20200139472Abstract: A welding-type system for gas tungsten arc welding including control circuitry to control the initiation of a welding arc and the preflow and postflow of inert shielding gas based on sensed voltages.Type: ApplicationFiled: November 1, 2019Publication date: May 7, 2020Inventors: Zachary Joseph Erndt, Al J. DeCoster
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Publication number: 20200139473Abstract: Systems and methods for wireless control of welding power supplies are disclosed. An example welding power supply includes: a housing comprising a control panel configured to receive inputs from an operator; power conversion circuitry configured to convert input power into output power for a welding operation; and local control circuitry configured to wirelessly receive a control signal from remote control circuitry of a portable electronic device, and to control the welding power supply based on the received control signal; wherein the local control circuitry is configured to set prioritization of control of the welding power supply between the portable electronic device and the control panel of the welding power supply, prevent the control panel from controlling a parameter of the welding power supply when the portable electronic device is prioritized, and prevent the portable electronic device from controlling the parameter when the control panel is prioritized.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Inventors: Marc Lee Denis, Benjamin G. Peotter
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Publication number: 20200139474Abstract: Method for scanning a workpiece surface (2A) of a metal workpiece (2), in which a blowtorch (3) having a welding wire electrode (4) is moved relative to the workpiece surface (2A) to determine scanning values and a wire end (4A) of the welding wire electrode (4) is repeatedly moved towards the workpiece surface (2A), in each case until contact with the metal workpiece (2) at a scanning position (P) on the workpiece surface (2A) of the metal workpiece (2) is detected, and the wire end (4A) of the welding wire electrode (4) is subsequently moved back, the blowtorch (3) detecting scanning values (d) at scanning positions (P), at least in some cases multiple times, to determine scanning measurement errors.Type: ApplicationFiled: June 22, 2018Publication date: May 7, 2020Inventors: Manuel Mayer, Andreas Waldhoer, Josef Artelsmair, Dominik Soellinger
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Publication number: 20200139475Abstract: Provided are a systems and methods for continuously providing a metal wire to a welding torch for manufacturing objects by solid freeform fabrication to provide continuous deposition of metal to the freeform object, especially objects made with titanium or titanium alloy wire.Type: ApplicationFiled: December 18, 2019Publication date: May 7, 2020Inventors: Trond FORSETH, Brede VIGDAL, Tom-Erik FALLA, Dyre ROLSTAD, Arne RAMSLAND
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Publication number: 20200139476Abstract: In an arc welding control method for controlling welding in which a material of a base material is a galvanized steel sheet, a feed speed of a welding wire is alternately switched between a forward feed period and a reverse feed period, and a short circuit period and an arc period are repeated, during the arc period, a first arc period Ta1 during which a first arc current Ia1 is applied, a second arc period Ta2 during which a second arc current Ia2 is applied, and a third arc period Ta3 during which a third arc current Ia3 is applied are switched over time, and it is controlled so as to be Ia1>Ia2>Ia3. Constant voltage control is performed during the second arc period Ta2, and constant current control is performed during the first arc period Ta1.Type: ApplicationFiled: September 28, 2017Publication date: May 7, 2020Applicant: DAIHEN CORPORATIONInventors: Kohei ONO, Toshiaki NAKAMATA
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Publication number: 20200139477Abstract: Automatically recognizing interchangeable torch components, such as consumables, for welding and cutting torches includes adding one or more passive markings to a surface of an interchangeable torch component. Then, the interchangeable component can be recognized by a torch assembly including a torch body and one or more imaging devices or by a system including the torch assembly and a power supply. The torch body has an operative end configured to removably receive the interchangeable torch component. The one or more imaging devices are positioned to optically acquire an image of or image data representative of the one or more passive markings included on the interchangeable torch components so that a processor can determine if the one or more interchangeable components are genuine.Type: ApplicationFiled: December 17, 2019Publication date: May 7, 2020Inventors: Michael Nadler, Maximilian Dougherty, Frederic Ewing, James Tantillo, Ryan T. Lynaugh, Kevin Horner-Richardson, Nicholas Courtney
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Publication number: 20200139478Abstract: A consumable assembly for use in an arc welding apparatus is provided that includes a nozzle assembly having a nozzle body, an insulator disposed within the nozzle body, and a nozzle insert disposed within the insulator. The nozzle insert includes an internal gas diverter. A contact tip is disposed within the nozzle assembly and includes at least one aperture extending from an exterior portion to an internal cavity, an exit orifice, a distal end face, and an exterior surface extending between the at least one aperture and the distal end portion of the contact tip. The internal gas diverter directs a flow of shield gas exiting the at least one aperture along the exterior surface of the contact tip, and a principal distance from the at least one aperture to the distal end face is varied to adjust the flow of the shield gas for improved cooling.Type: ApplicationFiled: January 9, 2020Publication date: May 7, 2020Inventor: Khalid Hassan
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Publication number: 20200139479Abstract: In some aspects, methods for preserving a usable life of a plasma arc electrode consumable installed in a plasma arc torch can include measuring a characteristic of an electrical signal being provided to the torch to generate a plasma arc between the torch and a workpiece to be processed; monitoring the characteristic during operation of the torch over a time period; comparing the characteristic to a threshold value; and, responsive to determining that a measured characteristic meets and/or exceeds the threshold value, initiating an arc extinguishing sequence to preserve the life of the electrode.Type: ApplicationFiled: January 8, 2020Publication date: May 7, 2020Inventors: Jonathan Ames, Christopher S. Passage, Soumya Mitra, John Peters
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Publication number: 20200139480Abstract: A method of resistance spot welding a workpiece stack-up that includes a steel workpiece and an aluminum workpiece includes adhering an aluminum patch to faying surface of a steel workpiece, positioning an aluminum workpiece over the aluminum patch and the steel workpiece to assemble a workpiece stack-up, passing an electric current through the workpiece stack-up to create a molten aluminum weld pool, and terminating passage of the electric current to solidify the molten aluminum weld pool into a weld joint that bonds the steel and aluminum workpieces together through the aluminum patch. A workpiece stack-up having a weld joint that bonds an aluminum workpiece and a steel workpiece together through an aluminum patch is also disclosed. The weld joint establishes a bonding interface with the faying surface of the steel workpiece, and the aluminum patch is adhered to the faying surface of the steel workpiece around the weld joint.Type: ApplicationFiled: November 7, 2018Publication date: May 7, 2020Inventors: David R. Sigler, Amberlee S. Haselhuhn, Blair E. Carlson, Michael J. Karagoulis
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Publication number: 20200139481Abstract: An electrical resistance spot welding electrode is disclosed for contact with a narrow or other selected spot weld region in a steel workpiece in a stack-up with an aluminum alloy workpiece for use in a spot welding method in which the weld nugget is carefully formed in the aluminum workpiece at the interface of the stack-up. The welding face of the welding electrode for contact with the steel workpiece is shaped with an aspect ratio greater than one, which fits against the contact surface of the steel workpiece, while the welding face for the aluminum-contacting weld electrode is circular (with an aspect ratio equal to one). The stack-up of workpieces may include a single steel workpiece facing two aluminum workpieces in a sandwich type stack-up or two steel workpieces facing a single aluminum workpiece with the outer steel workpiece having the narrow contact surface for the steel welding electrode.Type: ApplicationFiled: November 2, 2018Publication date: May 7, 2020Inventors: Amberlee S. Haselhuhn, David R. Sigler
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Publication number: 20200139482Abstract: A vehicle body assembly is described herein, including a first structural component and a second structural component. The first structural component may be a roof component or a side panel, and include a first part including a first metal and a second part including a second metal different than the first metal. The second part is formed on a peripheral edge portion of the first part and defines a mounting flange for the first structural component. The second part is joined to the first part via an ultrasonic additive manufacturing (UAM) interface. The second structural component is including the second metal and is joined to the second part at the mounting flange via a resistance spot weld (RSW) joint.Type: ApplicationFiled: January 8, 2020Publication date: May 7, 2020Inventors: Ryan M. Hahnlen, Marcelo J. Dapino, Leon M. Headings, Mark Bryant Gingerich
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Publication number: 20200139483Abstract: A resistance welding machine includes a first electrode and a second electrode which are configured so that the first and second electrodes can hold a workpiece therebetween and apply a current to the workpiece. The first electrode includes a first inner electrode and a first outer electrode disposed outside the first inner electrode at a predetermined interval. The second electrode includes a second inner electrode and a second outer electrode disposed outside the second inner electrode at a predetermined interval. The resistance welding machine further includes a control unit that can control a pressing state of the workpiece with the first and second electrodes according to predetermined welding conditions and selects a pair of electrodes that apply a current to the workpiece from the first inner electrode, the first outer electrode, the second inner electrode, and the second outer electrode.Type: ApplicationFiled: October 22, 2019Publication date: May 7, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Kojiro YAMAGUCHI, Katsunori TAKAHASHI, Motonori MORIWAKI, Masanori NAKAI, Koichiro ICHIHARA, Yasuhiro TOMINAGA, Naoki UJIHIRA
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Publication number: 20200139484Abstract: A laser processing device includes a support unit, a laser light source, a reflecting spatial light modulator, a light collection optical system, an imaging optical system, a minor, a first sensor configured to acquire displacement data on a laser light entry surface, and a second sensor configured to acquire displacement data on the laser light entry surface. An optical path of the laser light extending from the mirror to the light collection optical system is set along a first direction. An optical path of the laser light extending from the reflecting spatial light modulator to the mirror through the imaging optical system is set along a second direction. The first sensor is disposed on one side of the light collection optical system in a third direction.Type: ApplicationFiled: July 23, 2018Publication date: May 7, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventor: Junji OKUMA
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Publication number: 20200139485Abstract: A system for producing a proof-mass assembly includes a translation stage to receive a flapper hingedly supported by a bifilar flexure that extends radially inwardly from a support ring, wherein the bifilar flexure comprises a pair of flexure arms spaced apart by an opening or window; and a femtosecond laser optically coupled to the translation stage with focusing optics, the femtosecond laser applying a laser beam on the flexure arms over a plurality of passes to gradually thin the bifilar flexure regions, the laser periodically reducing a laser output to minimize damage from laser scanning and maximize bifilar flexure strength until the bifilar flexure reaches a predetermined thickness.Type: ApplicationFiled: May 15, 2019Publication date: May 7, 2020Inventor: William Goodman
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Publication number: 20200139486Abstract: A pair of separators is overlapped and placed on a base jig and thereby positioned with each other. Respective through-holes thereof are positioned to the position of a pin hole provided in the base jig. When a main jig is pressed against the base jig to clamp the pair of separators, and a pin of a sub-jig is inserted into the pin hole to clamp the pair of separators by a head, an annular light guiding path is formed by a gap generated between an opening provided in the main jig and the head of the sub-jig, and hence a laser welding position which surrounds the through-holes is exposed. The surrounding of each through-hole is seamlessly laser-welded when the laser welding position is irradiated with a laser beam.Type: ApplicationFiled: July 12, 2018Publication date: May 7, 2020Inventors: Toshihiro SHIMAZOE, Kento NAGAMATSU, Hiroyuki HIGASHI
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Publication number: 20200139487Abstract: The present disclosure relates to a system for performing an Additive Manufacturing (AM) fabrication process on a powdered material (PM) forming a substrate. The system uses a first optical subsystem to generate an optical signal comprised of electromagnetic (EM) radiation sufficient to melt or sinter a PM of the substrate. The first optical subsystem is controlled to generate a plurality of different power density levels, with a specific one being selected based on a specific PM forming a powder bed being used to form a 3D part. At least one processor controls the first optical subsystem and adjusts a power density level of the optical signal, taking into account a composition of the PM. A second optical subsystem receives the optical signal from the first optical subsystem and controls the optical signal to help facilitate melting of the PM in a layer-by-layer sequence of operations.Type: ApplicationFiled: December 27, 2019Publication date: May 7, 2020Inventors: Bassem S. EL-DASHER, Andrew BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES
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Publication number: 20200139488Abstract: The invention relates to a method and to a device for producing riblets (1), the riblets (1) being introduced by means of laser interference structuring or DLIP—direct laser interference patterning—in particular into an already coated and cured surface. The invention further relates to a component having the riblets produced in this way. Aircraft, ships, and wind turbines can be operated with lower drag in this way.Type: ApplicationFiled: April 25, 2018Publication date: May 7, 2020Inventors: Heinz Leonhard JETTER, Tobias DYCK