A theoretical model has been developed to quantify the specific effects of weaving on the temperature distribution in fusion welding. Satisfactory agreement is obtained between predicted and measured fusion line, Ac3, and Ac1 contours, both in the case of high heat input strip electrode surfacing and tungsten inert gas welding at large amplitudes of weaving. Indications are that the present model also can be adapted to normal stringer bead deposition (through proper adjustments of the theoretical amplitude of weaving) to account for the influence of directed metal currents in the weld pool on the resulting bead morphology.
MST/431
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