A welding system that, using a junction at which a standing plate and a bottom plate meet as a welding line, makes an electrode weave centered on the welding line and thereby welds along the welding line. While weaving, the electrode moves forward in a welding advancement direction until a bottom-plate-side weaving edge. When the electrode arrives at the bottom-plate-side weaving edge, the electrode moves backward with respect to the welding advancement direction until a standing-plate-side weaving edge. The electrode repeats this weaving motion on the bottom-plate side and on the standing-plate side. The system can suppress occurrence of inferior bead appearance and of welding defects in horizontal fillet welding.

A welding system that, using a junction at which a standing plate and a bottom plate meet as a welding line, makes an electrode weave centered on the welding line and thereby welds along the welding line. While weaving, the electrode moves forward in a welding advancement direction until a bottom-plate-side weaving edge. When the electrode arrives at the bottom-plate-side weaving edge, the electrode moves backward with respect to the welding advancement direction until a standing-plate-side weaving edge. The electrode repeats this weaving motion on the bottom-plate side and on the standing-plate side. The system can suppress occurrence of inferior bead appearance and of welding defects in horizontal fillet welding.

Methods and apparatus to synergically control a welding-type output during a welding-type operation are disclosed. An example welding-type power supply includes a power conversion circuit configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; a communication circuit configured to receive a control signal from a remote control device during a welding-type operation; and a control circuit configured to synergically control a voltage of the welding-type power and a wire feed speed based on the control signal.

A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.

A system and method of enhanced automated welding of a first workpiece and a second workpiece are provided. The method comprises providing a system for intelligent robot-based welding of the first workpiece and the second workpiece. The method further comprises determining a geometrical location of the first workpiece and the second workpiece to be welded at a welding sequence based a predetermined process variable. The method further comprises adjusting the predetermined process variable based on the geometrical location of the first and second workpieces to define an actual process variable. The method further comprises welding a first portion of the first and second workpieces with the actual process variable to define a first welded portion. The method further comprises determining a weld quality of the first welded portion.

In preparing a built-up object by depositing beads, in a step of dividing into the bead model, a trapezoidal bead model a cross section of which is a trapezoidal shape is applied to a position where the bead is formed in a portion not adjacent to an existing bead, and a parallelogram bead model a cross section of which is a parallelogram is applied to a position where the bead is formed adjacent to a bead that is already formed, in the parallelogram bead model opposite sides in the deposition direction of the bead being parallel to each other, and opposite sides in the bead arrangement direction being parallel to a side of another bead mode that is adjacent.

Systems and methods for learning management systems with shared weld training results are described. In some examples, weld training results may be shared with a learning management system and/or associated with a particular learning activity of the learning management system. In some examples, the weld training results (and/or a networked location where the weld training results are accessible) may be encoded in a machine readable graphic (e.g., a one dimensional, two dimensional, and/or matrix barcode). In some examples, the machine readable graphic may be read and/or decoded by a user device to obtain the weld training results. In some examples, a particular learning activity may also be encoded in the machine readable graphic.

A sensor device includes a sensor to detect a light beam to measure states of work pieces or a distance to the work pieces, a case body housing the sensor, and a protective cover including a protective plate that transmits the detection light beam. The protective cover includes a gas flow channel that passes a gas to be blown to the protective plate, the gas flow channel having formed therein an outlet port that passes the detection light beam and discharges the gas having flowed through the gas flow channel. The gas flow channel includes an accumulator between the protective cover and the case body adapted to have accumulated therein the gas flowing through the gas flow channel, and the accumulator includes vent holes through which the gas is allowed to flow out toward the outlet port.

An arc welding method is described where pulse arc welding is performed with a welding wire being fed in a forward direction during a first period and short-circuit transfer arc welding is performed with the welding wire being fed in the forward direction and a reverse direction during a second period. The arc welding method alternately switches between the first period and the second period, where the switching of the first period to the second period is performed during a peak period of the pulse arc welding.

An arc welding method is described where pulse arc welding is performed with a welding wire being fed in a forward direction during a first period and short-circuit transfer arc welding is performed with the welding wire being fed in the forward direction and a reverse direction during a second period. The arc welding method alternately switches between the first period and the second period, where the switching of the first period to the second period is performed during a peak period of the pulse arc welding.