Temperature Fields Produced by Traveling Distributed Heat Sources

Use of a Gaussian heat distribution in dimensionless form indicates final weld pool shape can be predicted accurately for many welds and materials ABSTRACT. The solution of a travelling distributed heat source on a semi-infinite plate provides information about both the size and the shape of arc weld pools. The results indicate that both welding process variables (current, arc length and travel speed) and material parameters (thermal diffusivity) have significant effects on weld shape. The theoretical predictions are compared with experi-mental results on carbon steels, stainless steel, titanium and aluminum with good agreement