Abstract: A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source.

Abstract: A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source.

Abstract: A method and apparatus for reducing spatter is disclosed. A welding gun, which can be an integrated part of a welding system, includes a device, such as a solenoid or motor and roller, to slow, stop or reverse the wire. The device is activated in response to feedback indicative of a short, a short that is about to form, or the imminent clearing of a short. The detection of the short, forming of a short, or clearing of a short is in response to feedback based on current and/or voltage. Output current can also be reduced.

Abstract: A portable advanced process module system includes, for example, a welding power source, an portable advanced process module, and a wire feeder. The portable advanced process module and the wire feeder are separately enclosed in suitcase style enclosures with disconnectable power and communication means between the portable advanced process module and the wire feeder. The processing unit includes power electronics to enable advanced weld processes that can be delivered to the wire feeder and a welding work piece. The portable advanced process module is powered by a DC bus that can be supplied by a welding power source. Connecting the portable advanced process module between the welding power source and the wire feeder enables advanced welding processes to be accomplished at great distances from the main welding power source.

Abstract: A system and method for providing a high power density plasma cutting/welding-type system is disclosed. The plasma cutting system includes a housing and a power source disposed within the housing constructed to generate plasma cutting power. The plasma cutting system also includes a plasma torch actuated by a trigger and connected to the power source to produce a cutting arc. The plasma cutting system is constructed such that it has a power-to-weight ratio of at least 550 Watts per kilogram (W/kg).

Abstract: A method and apparatus for reducing spatter is disclosed. A welding gun, which can be an integrated part of a welding system, includes a device, such as a solenoid or motor and roller, to slow, stop or reverse the wire. The device is activated in response to feedback indicative of a short, a short that is about to form, or the imminent clearing of a short. The detection of the short, forming of a short, or clearing of a short is in response to feedback based on current and/or voltage. Output current can also be reduced.

Abstract: A system and method for providing a high power density plasma cutting/welding-type system is disclosed. The plasma cutting system includes a housing and a power source disposed within the housing constructed to generate plasma cutting power. The plasma cutting system also includes a plasma torch actuated by a trigger and connected to the power source to produce a cutting arc. The plasma cutting system is constructed such that it has a power-to-weight ratio of at least 550 Watts per kilogram (W/kg).

Abstract: A drive roll adapted and configured to feed weld wire includes first and second opposing sides and an outer body surface. The outer body surface includes a base body surface, and at least one elevated wire interface extending outwardly from and along at least a major portion of the base body surface. The elevated wire interface can rotationally drivingly engage the weld wire, which enables the drive roll to advance the weld wire along e.g. a desired path of travel such as to a welding arc.