Author(s)

E. Mahajerin

Abstract

A boundary collocation heat flow model for arc welding E. Mahajerin Mechanical Engineering Department, Saginaw Valley State University, University Center, ABSTRACT Heat flow during welding may strongly affect phase transformation in the workpiece material. Therefore, there will be possible changes in physical as well as in mechanical properties of the material. For these reasons, the welding process requires a suitable computational method for estimating peak temperature and also the cooling rate during welding. Analytical models may be found for idealized models involving infinitely large regions, simple boundary conditions and constant material properties. Consequently, general cases involving finite geometries, temperature-dependent material properties and arbitrary boundary conditions may require a suitable numerical method. In this paper different governing differential equations of welding are investigated. In general, the resulting governing differential equati

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