An Arc Additive Manufacturing System with Single Power Supply and Three-wire Eutectic Droplet

Abstract

The invention belongs to the field of electric arc additive manufacturing, and discloses a single-power three-wire co-melting drop electric arc additive manufacturing system. The system comprises a three-wire feeder, a wire feeding pipeline, an electric arc gun, a robot and an electric arc additive manufacturing power, wherein the three-wire feeder is used for simultaneously conveying three metalwires into the wire feeding pipeline, the wire feeding pipeline is used for simultaneously guiding the three metal wires into the electric arc gun, and the robot is used for driving the electric arc gun to move; the electric arc gun comprises a three-in-one conversion joint, a gun neck main body module and a three-wire conductive nozzle module which are sequentially connected from top to bottom, the upper end of the three-in-one conversion joint is connected with the wire feeding pipeline, the lower end of the gun neck main body module is further provided with a heat dissipation nozzle module,and the heat dissipation nozzle module is arranged outside the three-wire conductive nozzle module in a sleeve mode and is used for radiating the three-wire conductive nozzle module; and the electricarc additive manufacturing power is used for enabling the three metal wires to form a common stable molten drop. The system can realize high-precision and high-efficiency electric arc additive manufacturing of large-scale metal structures.

Description

technical field [0001] The invention belongs to the field of arc additive manufacturing, and more specifically relates to an arc additive manufacturing system with a single power supply and three wires eutectic. Background technique [0002] Wire Arc Additive Manufacturing (WAAM), using electric arc as heat source, melts metal wire and builds up metal components layer by layer. It does not require molds, has high processing flexibility, and is easy to realize digital manufacturing. It can be used in high-performance large metal components has great advantages in manufacturing. Arc additive manufacturing uses an "arc" as a heat source to melt a metal wire to form a buildup. In the arc additive manufacturing process, the dimensional stability of the molten pool can improve the accuracy of large metal components for arc additive manufacturing. However, in the currently widely used single-arc additive manufacturing method, the arc will move on the metal wire, especially if the...

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent is a three-wire welding method proposed in the field of welding, which does not belong to the field of arc additive manufacturing, and cannot improve the accuracy of arc additive manufacturing components, nor can it solve the above-mentioned problems existing in the existing arc additive manufacturing technology

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