Double-wire MIG welding additive manufacturing system and method based on particle swarm optimization

Abstract

The invention discloses a double-wire MIG welding additive manufacturing system and method based on particle swarm optimization. The system comprises a power supply module, a power supply control module, an additive manufacturing module, a quality fuzzy evaluation module, a PID current waveform intelligent control module and an additional shielding gas module, wherein the power supply module comprises a DSP control core, a main control circuit, a power circuit and a user setting interface, the power supply control module comprises a main program module, a function module, a parameter setting module and an initialization module, the additive manufacturing module comprises a welding gun, an additive manufacturing robot and a control system, the quality fuzzy evaluation module is used for performing fuzzy evaluation on the double-wire MIG welding additive manufacturing sample quality, and the PID current waveform intelligent control module is used for optimizing the pulse current output in the additive manufacturing process. According to the double-wire MIG welding additive manufacturing system and method based on the particle swarm optimization, by means of the manner that particle swarm algorithm optimization is performed on a neural network PID current waveform control algorithm, a better control effect is achieved, and the double-wire MIG welding additive manufacturing quality and efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of welding additive manufacturing, and in particular relates to a particle swarm optimization-based twin-wire MIG welding additive manufacturing system and method. Background technique [0002] The use of welding methods for material forming is an emerging process for additive manufacturing. If the traditional single-wire MIG welding method does not adopt an improved process or control method and directly increases the speed, it is prone to weld formation defects such as "undercut" and "hump weld bead". The use of twin-wire pulsed MIG welding can strengthen the stirring of the molten pool, improve the arc distribution, and improve the quality of the weld seam. At the same time, it can also significantly reduce the heat input and effectively improve the production efficiency of additive manufacturing. [0003] In twin-wire MIG, shielding gas significantly affects weld shape, weld appearance, droplet transfer...

AI Technical Summary

Problems solved by technology

If the traditional single-wire MIG welding method does not adopt an improved process or control method and directly increases the speed, it is prone to weld formation defects such as "undercut" and "hump weld bead"

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