Apparatus and Method for use of Rotating Arc Process Welding

摘要

An arc welding apparatus that imparts a rotational movement to the tip of the consumable electrode to cause molten metal to be thrown by centrifugal force against the sidewall of the slot between metal work pieces being welded. The welding apparatus being configurable to control speed, direction, and/or placement of the electrical arc in relation to the slot. The welding apparatus being configurable to pair with other similar devices and to be cooperatively operated in close proximity and/or on a single weld puddle to accomplish larger and/or complex welds in rapid, repeatable succession.

主权项

1. In a torch for continuous arc welding which includes a body through which an electrode wire moves, into the head end of the body and from the base end thereof, and means to produce a wire consuming electric arc as the wire moves from the base end of the body, an elongated wand within the body having a head end within the body and a base end at the base end of the body, an axial passageway from the head end to the base end through which the electrode wire moves, and a tip at the base end with the arcing end of the wire being extended therefrom; and a rotation means adapted to move the wand and the arcing end of the wire in a circular path and including a motor within the body adjacent to the head end of the body and having a tubular shaft in substantial alignment with the wand, with the electrode wire being extended through the motor shaft and into the wand passageway, a rotor head having an eccentric mount means is mounted on the motor shaft and the head end of the wand is carried in the eccentric mount means to move in a circular path as the motor shaft rotates the rotor head, and the diameters of the passageways through the motor shaft and wand, with respect to the eccentricity of the mount means, are sufficient to permit movement of the electrode wire from the motor shaft and into the wand, the improvement comprising:
the motor being a stepping motor configured to provide precise positioning and control; a controller configured to receive an input control signal and to responsively move the shaft of the motor clockwise or counter clockwise in a step wise manner.