A fuzzy logic system for process monitoring and quality evaluation in GMAW: Monitoring weld quality in real time is proposed using voltage and current for raw data to develop graphic histograms

@inproceedings{Wu2001AFL,
  title={A fuzzy logic system for process monitoring and quality evaluation in GMAW: Monitoring weld quality in real time is proposed using voltage and current for raw data to develop graphic histograms},
  author={Chi Sharn Wu and Thomas Polte and D. Rehfeldt},
  year={2001}
}
This paper introduces a fuzzy logic system that is able to recognize common disturbances during automatic gas metal arc welding (GMAW) using measured welding voltage and current signals. A statistical method was employed to process the captured transient raw data, and the probability density distributions (PDDs) and the class frequency distributions (CFDs) were obtained. Based on the processed data (PDD values of welding voltage and current and CFD values of the short-circuiting timel, the… CONTINUE READING