A data structure for weld programs associates configuration data for a welding system with a plurality of weld programs and weld sequence data. The data structure allows the welding system to be configured for a particular part, operator, or stage in a welding process, and to be easily reconfigured when the part, operator, or stage changes, providing improved efficiency and flexibility in operation.

A welding wire feeder includes a wire feed drive and wire feed control circuitry coupled to the wire feed drive to control the drive of welding wire towards the welding application. The welding wire feeder includes power conversion circuitry configured to receive input power and to convert the input power to welding output suitable for a welding application, output voltage sensors configured to measure output voltage, output current sensors configured to measure output current, and control circuitry coupled to the power conversion circuitry and to the output voltage and current sensors. The power conversion circuitry includes power storage circuitry configured to store energy and to discharge at least a portion of the stored energy during an overdraw event. The control circuitry is configured to control the output current during the overdraw event to maintain a stored energy value of the power storage circuitry greater than a desired minimum energy value.

An electric arc welding system and method includes providing a welding apparatus having at least a welding power supply, a wire feeder configured to supply a welding wire, a welding gun having an opening from which the welding wire extends, and a welding controller. The controller can initiate a weld ending process, which senses any contact between the welding wire and a workpiece. In response to any such contact, the controller executes a wire material transfer routine to transfer molten material of the welding wire from the welding wire to the workpiece. This routine can be repeated until the wire feeder stops advancing the welding wire towards the workpiece during the weld ending process.

A learning control unit includes a machining device performance calculation section for calculating performance of a machining device during machining or after machining based on a motion command issued to a robot by a controller, a machining command issued to the machining device by the controller, and machining results measured by a sensor, an operation speed correction information calculation section for calculating operation speed correction information of the robot based on the performance of the machining device so as to satisfy a preset acceptable condition of the machining error, and under an allowable load condition of the robot, and a learning completion determination section for determining whether or not learning has completed based on previous correction information and current correction information.

A short circuit welding method with successive welding cycles with a respective arc phase and short circuit phase includes controlling at least the welding parameters welding current and feed speed of a melting electrode and feeding the electrode toward of a workpiece at a predetermined forward final speed at least during part of the arc phase and away from the workpiece at a predetermined rearward final speed at least during part of the short circuit phase. A device carries out this method. A change in the feed speed and a rearward final speed are predetermined and a welding current is controlled to complete the short circuit phase after reaching the rearward final speed and after 3 ms at the latest and repeat every 8 ms at the latest. The welding parameters are controlled such that the welding cycle duration8 ms, resulting in a welding frequency125 Hz.

A system and method for controlling the position of a filler wire and/or a laser head, or other heating head, in a welding system. The distal end of the filler wire is gradually moved, e.g., upward, until electrical continuity with the weld pool is lost; the filler wire is then moved back into contact with the weld pool. The heating head may be stationary relative to the weld pool, or it may move, with the distal end of the filler wire, relative to the weld pool.

In embodiments, a welding apparatus includes an automated wire feed mechanism to output wire at a wire feed rate, where the wire is to provide a welding arc to a weld site. The wire feed rate is based at least in part on selected power to be provided to the weld site. Additional embodiments are described and claimed.

A welding-type system includes a wireless network interface configured to connect a wire feeder or power supply to a wireless network. The wireless network interface is also configured to receive a wireless command in a first format. The wireless command is configured to control the power supply. Moreover, the wireless network interface is configured to convert the wireless command from the first format to a second format. The welding-type system also includes a wired transceiver configured to transmit the converted wireless command across a power delivery cable to the power supply. Furthermore, the welding-type system includes power terminals configured to receive power from the power supply at a level based at least in part on the transmitted wireless command.

A method of automatically setting a welding parameter for MIG/MAG welding including the following steps:initiating (S1) a parameter setting welding operation;measuring (S12) a welding voltage and retrieving (S13) a parameter representing a wire feed speed during said parameter setting welding operation; andidentifying (S14) a second function mapping said welding current to said welding voltage from said measured welding voltage and said retrieved parameter.

An arc welding device includes memory in which a combination of a short circuit frequency, a peak current, and a peak current period is stored and determinator that determines a peak current and a peak current period based on a set short circuit frequency and the combination stored in memory. A welding output part performs welding output based on the peak current and the peak current period determined by determinator.