Numerical study of heat transfer process during electroslag welding by two-dimensional particle method

A penetration process in electroslag welding is simulated using a two-dimensional smoothed particle hydrodynamics method to elucidate the heat transfer mechanism. The base metals are melted and forms orthogonal direction of weld line. From metal, molten metal flows downward, then pool below slag bath. distributions temperature increasing rates due conduction Joule heating also visualized clarify dominant factors contributing increases metal. occurs mainly at side bottom wire increased by from high slag. energy system evaluated quantitatively as well. Most input electric converted into thermal Approximately 80% generated transported while other 20% pool. Compared with gas arc welding, energies larger smaller than those welding.