Development and Characterization of Real Time Metal Transfer Recording Facility for Submerged Arc Welding

Commercially available metal transfer recording units for Submerged Arc Welding (SAW) are expensive and beyond the reach of Small Scale Industries. This paper describes the development and characterization of a low cost, easy to use real time metal transfer recording facility. The characterization of the system was done with the help of different fluxes and with different welding parameters. The system so developed also doubles up as a study tool for research purposes. This makes use of the concept of arc-through sensing which is of non-contact type and hence non invasive. The sensed arc data (voltage and current transients) is fed into a PC via a digital to analog card. This data can be stored for study purposes and also for qualitative analysis of welding consumables.