A laser processing device for processing shielded conductors includes a processing chamber configured to process an end portion of a shielded conductor disposed therein using laser radiation. The processing chamber has a housing defining an opening. In a processing position of the laser processing device, the end portion of the shielded conductor is inserted along an insertion axis into the opening and extends into the processing chamber. A gripping device is configured to fix the shielded conductor in the opening in the processing position of the laser processing device. In the processing position of the laser processing device, the gripping device is positioned at the housing without contact therebetween. The gripping device includes a first projection portion which extends at least partially into the opening along the insertion axis in the processing position of the laser processing device.

A tempering process for tempering an aluminum alloy coil includes a first reel-to-reel process including an anneal to solutionize the aluminum alloy followed by a quench, a second reel-to-reel process comprising rolling reduction, and a hardening anneal performed on the aluminum alloy coil. Cladding may be performed during the second reel-to-reel process; or a subsequent reel-to-reel electroplating process may be performed including an alkaline soak clean, an alkaline microetch and seed electroplating, and aqueous electroplating of a contact metal onto the seed electroplating. Electrical interconnect components may be stamped from the tempered and clad or electroplated aluminum alloy coil. The electrical interconnect components may, for example, be connectors, lead frames, or bus bars.

A secondary battery manufacturing method according to an example embodiment of the present disclosure includes an electromagnetic welding step of joining together a first metallic component and a second metallic component included in the secondary battery by electromagnetic welding, and a laser welding step of applying laser light to weld an unjoined part of the first metallic component and the second metallic component, the unjoined part being not joined by the electromagnetic welding step.

A system may include an emitting device and a controller. The emitting device may be adapted to emit a first laser beam and a second laser beam. The controller may include one or more processors and may be operably coupled to the emitting device to control emission of the first and second laser beams. The controller may be adapted to remove a portion of a workpiece to form an exposed surface of the workpiece with the first laser beam using the emitting device and to remove a portion of the exposed surface with the second laser beam using the emitting device.

A method for repairing a test contact arrangement in which a test contact which is disposed on a test contact carrier by means of solder material and is incorrectly positioned is gripped at a body edge by means of a gripping tool in a gripping contact phase, an absorption surface which is realized on an outer surface of the gripping tool is treated with laser radiation during the gripping contact phase, and the gripping tool performs a movement on at least one axis when the temperature is at the softening point of the solder material, in such a manner that the incorrect position is corrected by means of the movement to bring the test contact into a desired position.

Discussed is an electrode lead tack welding jig for a battery cell, and the jig including a jig body configured to support at least two battery cells, and a close contact guide unit provided to both ends of the jig body and configured to guide electrode leads of the at least two battery cells to come into close contact when tack welding is performed to the electrode leads by a laser.

A method for joining copper hairpins includes providing at least two ends to be joined to one another of the copper hairpins, and joining the copper hairpins. The copper hairpins are joined by laser beam welding with a machining beam having a wavelength of less than 1000 nm.

A horn includes a plurality of protrusion formation parts, each of which has a plurality of protrusions that protrude from a welding surface and are arranged in a line in at least one row, the plurality of protrusion formation parts respectively configured to form pattern formation parts on an outermost electrode tab of electrode tabs of a secondary battery, and a protrusion-free part which is disposed between two protrusion formation parts of the plurality of protrusion formation parts and in which protrusions are not provided to expose the welding surface to an outside, the protrusion-free part configured to form a pattern-free part on the outermost electrode tab. The protrusion-free part has a width greater than a width of each of the protrusions.

This laser welding method involves superposing a first terminal and a second terminal which are composed of a metal material containing copper and aluminum as a main component, and welding and joining the first terminal and the second terminal with a laser, the method including a laser irradiation step for irradiating, with a laser, along the edge of the first terminal, each of a first upper surface which is the opposite surface to a surface of the first terminal superposed on the second terminal, and a second upper surface which is the surface on the same side, of the second terminal superposed on the first terminal, wherein in the laser irradiation step, laser is emitted a plurality of times under the conditions for heat transfer mode welding.

A joining device in an embodiment includes a controller, and, by controlling an operation of the joining device, the controller joins, for an electrode group where first and second current collecting bundle portions are arranged in a thickness direction with a gap interposed, the first current collecting bundle portion to a lead by applying pressure to the first current collecting bundle portion from at least one side in the thickness direction. By controlling, the controller joins, for the electrode group, the second current collecting bundle portion to the lead by applying pressure to the second current collecting bundle portion from at least one side in the thickness direction, the second current collecting bundle portion being joined while an attitude angle of the electrode group to a horizontal plane is maintained from an attitude of the electrode group during joining of the first current collecting bundle portion.