B23K13/01

System and method for connecting metal workpieces
11577295 · 2023-02-14 ·

A method of forming an assembly in which a metal extension element is connected with a metal stub element, by an intermediate element. The intermediate element extends between first and second ends. The intermediate element is positioned to locate its first end spaced apart from the stub element. An inner end of the extension element is spaced apart from the second end of the intermediate element. Heating elements are located between the elements, to heat the proximal portions of the elements to a hot working temperature, at which the heated portions are subject to plastic deformation. The heating elements are removed, and while the intermediate element is rotating, the first end is urged against the stub element to bond the intermediate element with the stub element. While the extension element is rotating, the inner end is urged against the second end to bond the extension element and the intermediate element.

Method for Gas Phase Alloy Enhancement of Solid State Welds
20230017230 · 2023-01-19 · ·

An apparatus and method of alloying a weld in an induction-kinetic welding of metal parts together includes heating substantially planar portions of two metal parts with an induction heating coil in between the planar portions. During at least a portion of the step of heating the planar portions, flowing a gas containing an alloying element in proximity to the planar portions. A chemical reaction results in an alloying element alloying the planar portions. The induction heating coil is withdrawn from in between the planar portions and the parts are forced into contact with each other in a kinetic energy welding process resulting in the metal parts being welded together. The welded parts have improved strength in the area of the weld. The welding process can be used to increase the presence of alloying transition metals and to improve the flowability and weldability during the kinetic phase before dilution of enriched carbon by shear accelerated diffusion.

Method for Gas Phase Alloy Enhancement of Solid State Welds
20230017230 · 2023-01-19 · ·

An apparatus and method of alloying a weld in an induction-kinetic welding of metal parts together includes heating substantially planar portions of two metal parts with an induction heating coil in between the planar portions. During at least a portion of the step of heating the planar portions, flowing a gas containing an alloying element in proximity to the planar portions. A chemical reaction results in an alloying element alloying the planar portions. The induction heating coil is withdrawn from in between the planar portions and the parts are forced into contact with each other in a kinetic energy welding process resulting in the metal parts being welded together. The welded parts have improved strength in the area of the weld. The welding process can be used to increase the presence of alloying transition metals and to improve the flowability and weldability during the kinetic phase before dilution of enriched carbon by shear accelerated diffusion.

Railway rail induction-welding device

A railway rail induction-welding device is provided which includes a device support and a railway rail alignment means for aligning opposing railway rails in three mutually perpendicular directions, the railway rail alignment means being supported by the device support. The railway rail alignment means includes first and second railway-rail clamping elements to horizontally and longitudinally align the opposing railway rails when gripped by the first and second railway-rail clamping elements, with at least one of the first and second railway-rail clamping elements being movably supported by the device support, and a vertical lifting means for moving each railway-rail clamping element vertically to align the opposing railway rails. A railway rail clamping and lifting module, a vehicle a railway rail induction-welding device, and a method of inductively welding opposing railway rails together are also provided.

Magnetic clamping heat sink assembly

A method of fixing a membrane to a surface is disclosed. The method includes affixing a metallic washer having a heat-activated adhesive layer on a surface; arranging a membrane on top of the surface and the heat-activated adhesive layer of the metallic washer; heating the metallic washer to activate the heat-activated adhesive layer such that the membrane is fixable to the metallic washer; positioning a magnetic clamping heat sink assembly on the membrane; magnetically clamping the magnetic clamping heat sink assembly to the metallic washer causing the magnetic clamping heat sink assembly to apply a force against the membrane when the magnetic clamping heat sink assembly sufficiently overlaps the metallic washer to form a secure bond; and cooling the metallic washer, the heat-activated adhesive layer, and the membrane by removing heat through the magnetic clamping heat sink assembly.

Magnetic clamping heat sink assembly

A method of fixing a membrane to a surface is disclosed. The method includes affixing a metallic washer having a heat-activated adhesive layer on a surface; arranging a membrane on top of the surface and the heat-activated adhesive layer of the metallic washer; heating the metallic washer to activate the heat-activated adhesive layer such that the membrane is fixable to the metallic washer; positioning a magnetic clamping heat sink assembly on the membrane; magnetically clamping the magnetic clamping heat sink assembly to the metallic washer causing the magnetic clamping heat sink assembly to apply a force against the membrane when the magnetic clamping heat sink assembly sufficiently overlaps the metallic washer to form a secure bond; and cooling the metallic washer, the heat-activated adhesive layer, and the membrane by removing heat through the magnetic clamping heat sink assembly.

Induction heating systems having close proximity communication devices

Apparatuses, systems, and/or methods for providing an induction heating system are disclosed. The induction heating system includes an induction power supply and an induction heating tool configured to receive induction-type power from the induction power supply through one or more ports. The ports may be part of the induction power supply and/or an associated junction box. The induction heating tool may include a heating coil attached to one or more plugs via one or more cables. The ports of the induction power supply and/or junction box are configured to receive the plugs of the induction heating tool. A communication device may be positioned adjacent the ports. The communication device may be configured to read data from one or more memory devices of the induction heating tool (e.g., in/on the plugs) via close proximity communication.

Laser assisted metallization process for solar cell stringing

Metallization of semiconductor substrates using a laser beam, and the resulting structures, e.g., micro-electronic devices, semiconductor substrates and/or solar cells, solar cell circuit, solar cell strings, and solar cell arrays are described. A solar cell string can include a plurality of solar cells. The plurality of solar cells can include a substrate and a plurality of semiconductor regions disposed in or above the substrate. A plurality of conductive contact structures is electrically connected to the plurality semiconductor regions. Each conductive contact structure includes a locally deposited metal portion disposed in contact with a corresponding one of the semiconductor regions.

Method for manufacturing a domestic appliance

The present invention relates to a method for manufacturing a domestic appliance at least comprising the following steps:—at least one positioning and/or prefixing step comprising positioning and/or prefixing of at least a first component part (3) of the domestic appliance relative to at least a second component part (2) of the domestic appliance, the first component part (3) comprising a first contour (32), and the second component (2) part comprising a matching second contour (21), respectively, the positioning and/or prefixing comprising positioning and/or prefixing the second contour (21) in a pre-defined arrangement at the first contour (32);—at least one welding step comprising welding together the first and second component parts (3, 2) along at least one of the first and second contour (32, 21); wherein the welding being controlled by a control device and carried out by:—detecting, in particular via a detection device, at least one of a location and course of at least a section of a marking representative for only one of the first and second contour; and—generating a welded seam to join the first and second component along the first and second contour based on the detected location and/or course of the marking.

Method for manufacturing a domestic appliance

The present invention relates to a method for manufacturing a domestic appliance at least comprising the following steps:—at least one positioning and/or prefixing step comprising positioning and/or prefixing of at least a first component part (3) of the domestic appliance relative to at least a second component part (2) of the domestic appliance, the first component part (3) comprising a first contour (32), and the second component (2) part comprising a matching second contour (21), respectively, the positioning and/or prefixing comprising positioning and/or prefixing the second contour (21) in a pre-defined arrangement at the first contour (32);—at least one welding step comprising welding together the first and second component parts (3, 2) along at least one of the first and second contour (32, 21); wherein the welding being controlled by a control device and carried out by:—detecting, in particular via a detection device, at least one of a location and course of at least a section of a marking representative for only one of the first and second contour; and—generating a welded seam to join the first and second component along the first and second contour based on the detected location and/or course of the marking.