Presented are metalworking systems for joining metallic workpieces, methods for forming and welding such workpieces, and lithium-ion battery pouch cells with anodized aluminum tabs joined via knurling and laser welding. A method for laser welding abutting sections of a workpiece or stackup of workpieces includes receiving, via a workpiece support frame, one or more metallic workpieces each with a surface having applied thereto a treatment layer. This treatment layer releases a gas during welding. A metalworking device forms a knurl pattern into the workpiece surface with the treatment layer. The knurl pattern includes a network of channels, such as one or more series of mutually parallel, rectilinear vent channels, designed to exhaust therethrough the gas released from a welded section of the treatment layer. A laser welding device thereafter welds a joint region of the surface(s) of the one or more metallic workpiece with the knurl pattern.

Presented are metalworking systems for joining metallic workpieces, methods for forming and welding such workpieces, and lithium-ion battery pouch cells with anodized aluminum tabs joined via knurling and laser welding. A method for laser welding abutting sections of a workpiece or stackup of workpieces includes receiving, via a workpiece support frame, one or more metallic workpieces each with a surface having applied thereto a treatment layer. This treatment layer releases a gas during welding. A metalworking device forms a knurl pattern into the workpiece surface with the treatment layer. The knurl pattern includes a network of channels, such as one or more series of mutually parallel, rectilinear vent channels, designed to exhaust therethrough the gas released from a welded section of the treatment layer. A laser welding device thereafter welds a joint region of the surface(s) of the one or more metallic workpiece with the knurl pattern.

A metal laminating and modeling method includes a first inclination angle modeling step including a first inclination step of setting a table on which the metal layers are to be formed at a first table inclination angle and setting a welding torch at a first torch inclination angle and a first welding step of forming a weld bead that becomes a part of the modeled object by arc welding with the welding torch and a second inclination angle modeling step including a second inclination step of inclining the table at a second table inclination angle that is larger than the first table inclination angle and setting the welding torch at a second torch inclination angle and a second welding step of forming the weld bead.

A composite component includes a reinforcement bonded to a base component by a bond formed by, or reinforced with, a localized coupling in the base component. The bond may be formed by ultrasonic additive manufacturing. The localized coupling may include a compression of the base component, a weld in the base component, or a heat affected zone of the weld. Where the bond is formed by the localized coupling, the localized coupling encompasses the reinforcement. Where the bond is reinforced with the localized coupling, the localized coupling may encompass the reinforcement, or be arranged at an inside radius of a turn in the reinforcement. The reinforcement results in the composite component having enhanced properties such as lower density, increased strength, stiffness, or energy absorption capabilities.

An implantable pulse generator configured for delivering one or more electrical pulses to a target region within a body of a patient using an implantable neurostimulation lead, the implantable pulse generator comprising a hermetically sealed housing comprising a ceramic portion defining an inner volume configured to receive a charging coil assembly comprising a charging coil wrapped around an optional ferrite core material; an intermediate metal ring; and a case, wherein the intermediate metal ring comprises a first side joined to the ceramic portion by either a braze material or a diffusion bond, wherein the braze material or the diffusion bond is substantially free of nickel, and wherein the intermediate metal ring comprises a second side joined to the case portion.

A method for the preparation of steel sheets for fabricating a welded steel blank is provided. The method includes a step of removing at least part of the first and second metal alloy layers in first and second peripheral zones of pre-coated steel first and second sheets, respectively, by simultaneously ablating the first and second precoatings in the first and second peripheral zones of the pre-coated steel first and second sheets to define first and second ablation zones, the first and second peripheral zones being zones of the first and second principal faces closest to the median plane and located on either side of the median plane.

A method for the preparation of steel sheets for fabricating a welded steel blank is provided. The method includes a step of removing at least part of the first and second metal alloy layers in first and second peripheral zones of pre-coated steel first and second sheets, respectively, by simultaneously ablating the first and second precoatings in the first and second peripheral zones of the pre-coated steel first and second sheets to define first and second ablation zones, the first and second peripheral zones being zones of the first and second principal faces closest to the median plane and located on either side of the median plane.

The invention pertains to a welding apparatus, particularly to a spot sa welding apparatus which utilizes a single welding electrode/torch to weld vertically adjacent metallic sheets or plates together. The apparatus comprises a MAG welding apparatus with a welding torch and shielding inert or semi-inert gases gas source configured to protect the welded working place, an apparatus for creating holes in at least one of the welded metallic sheets and at least one frame part for assembling the MAG welding apparatus and apparatus for creating holes.

The invention pertains to a welding apparatus, particularly to a spot sa welding apparatus which utilizes a single welding electrode/torch to weld vertically adjacent metallic sheets or plates together. The apparatus comprises a MAG welding apparatus with a welding torch and shielding inert or semi-inert gases gas source configured to protect the welded working place, an apparatus for creating holes in at least one of the welded metallic sheets and at least one frame part for assembling the MAG welding apparatus and apparatus for creating holes.

A method for producing a precoated steel sheet (1) includes providing a precoated steel strip comprising a steel substrate carrying, on at least one of its faces, a precoating. The precoating includes an intermetallic alloy layer and a metallic alloy layer extending atop the intermetallic alloy layer. The metallic alloy layer is a layer of aluminum, a layer of aluminum alloy or a layer of aluminum-based alloy. The method also includes laser cutting the precoated steel strip so as to obtain at least one precoated steel sheet (1). The precoated steel sheet (1) includes at least one cut edge surface (13). The cut edge surface (13) includes a substrate region (14) and a precoating region (15) and the thickness of the precoated steel sheet (1) being comprised between 1 mm and 5 mm. The laser cutting is carried out such that it results directly in a reduced-aluminum zone (20), extending over the entire height (h) of the cut edge surface (13) and over a length smaller than or equal to the length thereof. The surface fraction of aluminum on the substrate region (14) of the reduced-aluminum zone (20) directly results from the laser cutting operation being comprised between 0.3% and 6%.