Systems and methods are disclosed relating to welding-type power supplies. In some examples, the power supplies may have no vents, which may help prevent environmental contaminants from entering the power supplies. Instead, the power supplies include one or more thermal interfaces configured to conduct heat generated by internal circuitry of the power supply from the interior of the power supply to an exterior of the power supply. Additionally, the thermal interface(s) may be configured for attachment to one or more exterior heat dissipating devices.

Method for fitting or plugging a first connecting part into a second connecting part of a processing head for thermal material processing, the first connecting part having, on an encircling outer face, and/or the second connecting part having, on an encircling inner face, at least one slot, extending at least around a partial circumference, with a slot width B130, B230 and a slot depth T130, T230, T112, T120, which receives an O-ring or profile ring, extending around the entire circumference, with a cord size Sa, wherein, when the first connecting part is fitted or plugged into the second connecting part, the O-ring or profile ring is initially in contact with the opposite inner face or opposite outer face only around a partial circumference, which extends along the slot, or around a plurality of partial circumferences, which extend along the slot, and connecting parts and arrangements made up thereof.

The invention relates to a coolant supply device of a machining device to be supplied with a fluid coolant, particularly with water, for example a welding arrangement (2) or a welding robot etc., the region or tool to be cooled, for example a welding cap, being incorporated into an open or closed coolant circuit which has an inflow (4) and an outflow (5), and said device comprising a conveyor device that operates in the coolant circuit and conveys the coolant within said coolant circuit, and a control device (8) for deactivating said conveyor device and/or closing the inflow (4) and/or outflow (5) and evacuating said inflow (4) and/or outflow (5) such that, in the region of the tool being cooled, an at least negligible level of negative pressure prevails in the inflow line (9) and/or in the outflow line (12).

A laser marking system for marking a product comprising a laser source for providing a laser beam, a marking head for projecting the laser beam on to the product, a housing comprising an extraction device configured to generate a flow of extraction fluid for extracting matter generated by an interaction between the laser beam and the product, and a controller for controlling the laser source and the marking head. The laser marking system further comprises an umbilical assembly connecting the housing to the marking head.

A wire feeder includes an exterior housing and in interior housing that creates an interstitial spaced that is disposed between the exterior and interior housing. This housing structure reduces weight of the wire feeder while maintaining the structural rigidness required of a wire feeder. This housing structure also promotes improved cooling features for the wire feeder and the components disposed within the wire feeder. The exterior housing may be constructed of a materials that reduces the likelihood of being damaged. The wire feeder may be further equipped with a strain relief device for the incoming supply cables, and an interchangeable cable connector. The wire feeder may also be equipped with removable wire guides for the wire feeder mechanism that are toolless. The wire feeder may be equipped with accessory storage and attachment features, as well as a cost reduced repositionable control panel.

A welder-generator comprising an engine operatively coupled to a generator, weld circuitry, and a cooling system. The generator is configured to produce an electrical signal. The weld circuitry includes inverter circuitry configured to control characteristics of the electrical signal. A cooling system is configured to substantially block heat generated by operation of the engine from being transmitted to the weld circuitry.

A method of manufacturing a mold includes the processes of: arranging a channel member in a recessed groove formed on a surface of a mold body; irradiating an opening part of the recessed groove with a first laser, thereby performing a first build-up welding on a part in the vicinity of the opening part of the recessed groove; and irradiating a region on a surface of the mold body including a region where the first build-up welding has been performed with a second laser, thereby performing a second build-up welding on a region on the surface of the mold body including the region where the first build-up welding has been performed.

A welding block for a welding system secures together first and second components of a workpiece for a motor vehicle to reduce distortion of the first and second components during a welding process. The welding block includes a jig mechanism that has a proximal surface for receiving a load from an arm of the welding system. The jig mechanism further includes a distal surface for engaging the first component and securing the first and second components to one another during the welding process. The jig mechanism defines a passage, such that heat flows from the distal surface to a coolant flowing through the passage. The welding block further includes a sensor coupled to the jig mechanism for detecting a measured variable associated with at least one of the first and second components.

An induction welder for inductively welding two or more components has an induction coil for applying a magnetic field to a weld site of the two or more components to inductively weld the two or more components together. The induction coil includes a proximal end and a distal end. The distal end is positioned proximate the weld site of the two or more components to inductively weld the two or more components at the weld site. A press is disposed distally of the induction coil such that the press is disposed between the induction coil and the two or more components when the two or more components are being inductively welded together. The press is used to apply pressure to the two or more components and press the two or more components together at the weld site simultaneously with the application of the magnetic field at the weld site.

A dual orifice venturi vacuum drawback assembly includes a fluid supply passage that supplies fluid to the device, a fluid return passage that returns fluid from the device, a shutoff valve position on the fluid supply passage, a bypass passage, a bypass valve positioned on the bypass passage, and a dual orifice venturi valve. The bypass passage includes an inlet connected to the fluid supply passage upstream of the shutoff valve, and an outlet connected to the fluid return passage. The dual orifice venturi valve is positioned on the bypass passage upstream of the bypass valve. The dual orifice venturi valve includes a venturi inlet, a venturi outlet, a primary orifice, and a secondary orifice. The primary orifice is connected to a primary drawback opening on the fluid return passage. The secondary orifice is connected to a secondary drawback opening on the fluid return passage.