Multi-Input Multi-Output Control of Consumable DE-GMAW

Abstract:

A novel and high efficient consumable double-electrode gas metal arc welding (consumable DE-GMAW) method has been introduced. Because of the coupled welding parameters, a multi-input multi-output (MIMO) control scheme was proposed and tested, which controlled the bypass arc by adjusting the bypass wire feed speed, and controlled the base metal current by adjusting the bypass current. Then, the welding experiment has been carried out. The results showed that the MIMO control scheme was effective. The base metal current was controlled at a nearly constant level and the welding process was stable. Also a good weld appearance was obtained.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 1114-1117
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.1114
• Online since: September 2013
• Authors: Ming Zhu, Yu Shi*, Ding Fan, Hai Zhou
• Keywords: Consumable De-GMAW, MIMO Control, Welding Experiment

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