Improving the GMAW process through current control
Alexandre Sanfelici Bazanella, Mateus Gaspary de Freitas
TL;DR
This paper presents a closed-loop current control strategy for GMAW welding, designed using formal methods and implemented on microcontrollers, leading to improved welding performance in various settings.
Contribution
It introduces a novel current control approach for GMAW based on a data-driven electrical model and formal control design, enhancing welding quality.
Findings
Improved welding consistency and quality.
Effective control in manual and robotic welding.
Validated through extensive experiments.
Abstract
A control strategy for the electrical current in GMAW processes is proposed. The control is in closed-loop, designed by formal methods, based on a mathematical model of the electrical behavior of the GMAW process, and implemented in C+ language in a microcontroller. The model consists of a switched equivalent electrical circuit whose parameters are obtained in a data-driven manner. The strategy is tested in numerous experiments with both manual and robot welding, showing improvements in the overall welding process.
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Taxonomy
TopicsWelding Techniques and Residual Stresses · Advanced Welding Techniques Analysis · Neural Networks and Applications