The Effect Of Electrode Weaving When Producing Vertical Fillet Welds Using Mechanised CO2 Welding

TWI Industrial Member Report Summary 78/1976

By C F G Baxter

Background

Commercially available equipment has been used to investigate the potential advantages gained by simple harmonic electrode weaving when producing vertical fillet welds with mechanised 'dip transfer' CO₂ arc welding. The effect of the simple lateral weaving variables (lateral weave displacement frequency and end dwell periods) on the range of welding conditions with which it was possible to produce sound welds was identified. It was further possible to characterise the range of suitable welding conditions in terms of weld characteristics, namely weld metal leg length, root penetration and weld bead profile.