A method for producing a built-up object by melting and solidifying a filler metal to form weld beads on a base surface along a track for a torch and form the built-up object formed by the weld beads is provided. The built-up object includes a bead formation portion where a gravitational influence is maximum. The method includes: forming a supporting bead having a higher viscosity during weld-bead formation than other weld beads in the bead formation portion; and forming the other weld beads overlying the supporting bead.

An electromagnetic component assembly disposed in a power source of a welding or cutting system. The electromagnetic component assembly includes a core and a tubular winding. The tubular winding is placed near or around the core and conducts a current for an electromagnetic operation. The tubular winding includes a passageway for a process fluid, an inlet, at one end of the passageway, that receives the process fluid, and an outlet, at another end of the passageway, that directs the process fluid downstream toward a torch assembly. The passageway enhances cooling of the electromagnetic component assembly as the process fluid travels through the passageway from the inlet to the outlet.

A method for piercing and cutting a workpiece that includes the use of a plasma torch having an electrode and a nozzle spaced from and surrounding a distal end portion of the electrode to form a process gas flow channel. According to one implementation the method includes delivering a plasma gas at a first pressure through the process gas flow channel of the torch while ionizing the plasma gas to produce a plasma arc that extends between the electrode and the workpiece. While the plasma gas is delivered at the first pressure, performing a piercing operation by producing a pierce hole in the workpiece using the plasma arc. Subsequent to the piercing operation, performing a cutting operation by delivering through the process gas flow channel the plasma gas at a second pressure lower than the first pressure, and with the plasma gas being delivered at the second pressure, forming a cut in the workpiece that originates at and extends away from a boundary of the pierce hole.

A plasma cutting machine cuts a work piece with a plasma arc. The plasma cutting machine includes a plasma torch, a drive device, and a controller. The plasma torch includes an electrode and a nozzle and generates the plasma arc. The drive device moves the plasma torch. The controller includes a storage device and controls the drive device. The storage device records information pertaining to the plasma cutting machine. The controller acquires a weight of a work piece. The controller acquires a consumption amount of at least one of the electrode and the nozzle. The controller records, in the storage device, processing performance data including the weight of the work piece and the consumption amount correlated with each other.

An example welding-type system includes: processing circuitry; and a machine readable storage medium comprising a machine readable instruction, when executed by the processing circuitry, cause the processing circuitry to: control a first switch to disconnect a motor circuit from a motor power source, the motor circuit comprising a wire feed motor and a second switch; control the second switch to permit current to flow while the first switch disconnects the motor circuit from the motor power source during a test period; and in response to feedback indicative of a current through the motor circuit while the first switch is open and the second switch is closed, detecting a fault condition associated with the motor circuit.

Provided are systems and methods for regulation of mass flow and monitoring of volumetric flow, for regulation of volumetric flow and monitoring of mass flow, and for regulation of both mass and volumetric flow of gas to a plasma torch for wire-plasma arc additive manufacturing processes, and methods for manufacturing metal objects by additive manufacturing using one or more of the systems.

Systems and methods are disclosed that include generating a plasma treatment and applying the plasma treatment to end contact surfaces of a first profile and a second profile in a sterile environment, manipulating at least one of the first profile and the second profile to force contact between the end contact surface of the first profile and the end contact surface of the second profile to permanently connect, join, or weld the end contact surfaces of the first profile and the second profile together, thereby forming a sterile connection between the first profile and a second profile.

Disclosed are a reverse polarity plasma arc robot additive manufacturing system and an implementation method therefor, the system comprising an industrial robot, an additive manufacturing power source, a wire feeding machine, a machine visual system, an industrial computer, a plasma welding gun, a refrigerating device, a gas device and an auxiliary tool fixture. The industrial robot, the additive manufacturing power source, the wire feeding machine, the refrigerating device, the gas device and the auxiliary tool fixture are all connected to the industrial computer via a CAN bus; the machine visual system is connected to the industrial computer by means of a TCP/IP protocol; the plasma welding gun is connected to the refrigerating device, the additive manufacturing power source, the wire feeding machine, the gas device and the auxiliary tool fixture; and the refrigerating device is further connected to the additive manufacturing power source. The additive manufacturing power source comprises a main-arc power source and a pilot-arc power source, and the main-arc power source and the pilot-arc power source are both connected to the plasma welding gun; and the main-arc power source comprises a main-arc power source main circuit and a main-arc power source control circuit, and the pilot-arc power source comprises a pilot-arc power source main circuit, a pilot-arc power source control circuit and a high-frequency and high-voltage arc ignition circuit. The additive manufacturing power source not only realizes the inverse change of the high-frequency and high-efficiency, but also realizes the integration and digital integration of the pilot-arc power source and the main-arc power source. The main-arc power source and the pilot-arc power source are digitally coordinated by means of a CAN network, and the volume of same is compact, the compatibility is better, the field environment is more adaptable, and the expansion capability is stronger.

Disclosed example power supplies, user interfaces, and methods are provided for intuitive or automatic control of welding parameter output ranges. The disclosed systems and methods provide tools for setup of configurable and/or default settings for a welding power source and/or wire feeder. Weld settings include upper and lower limits for an operating range corresponding to one or more welding parameters, such that a welding parameter value is bound by the upper and lower limits during a welding operation. In some examples, the operating range, and the corresponding upper and lower limits, are calculated or determined based on a selected range tolerance.

A method for repairing a pocket of a case for a variable stator assembly may comprise: receiving, via a processor, a plurality of wear depths, each wear depth in the plurality of wear depths corresponding to a wear portion in a stator pocket in a plurality of stator pockets; determining, via the processor, a plurality of thicknesses of a coating to be deposited based on the plurality of wear depths, each thickness of the coating in the plurality of thicknesses corresponding to the wear portion for each stator pocket in the plurality of stator pockets; and commanding, via the processor, a coating spray torch to deposit the coating in the wear portion of each stator pocket in the plurality of stator pockets.