Journal ArticleDOI
Numerical Study of Temperature Distributions and Solidification Pattern in the Weld Pool of Arc Welded Plate
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TLDR
In this article, an attempt is taken to predict the transient temperature distribution and solidification pattern through a numerical model and the associated mathematical technique considering the solidification and heat transfer, of molten weld pool when it is covered with flux and without flux in arc welding process.Abstract:
The study on heat flow in welding is essential as the quality of the weld depends on mainly heat flow through the welded plate. The heat input from welding source flows in a limited zone, and it subsequently flows into the workpiece by conduction. In this study, an attempt is taken to predict the transient temperature distribution and solidification pattern through a numerical model and the associated mathematical technique considering the solidification and heat transfer, of molten weld pool when it is covered with flux and without flux in arc welding process. The numerical model developed in this study solves fluid flow and heat transfer considering solidification and melting phase change the along with natural convection in the meltpool. It was found that the flux is functioning as insulation on the welded pool, hence it restricts rapid solidification and increases the mushy zone width.read more
Citations
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A novel fixed-grid interface-tracking algorithm for rapid solidification of supercooled liquid metal
TL;DR: In this paper, a fixed-grid interface tracking method using finite volume method to simulate multidimensional rapid solidification (RS) of under-cooled pure metal was presented.
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Computational study of the effect of spray parameters on adhesion of splat on the stainless street substrate during the impact of molten zirconia droplet
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Numerical Study on the Effect of Dynamic Contact Angle on Air Entrapment and Spreading of a Hollow Droplet Impacting on a Surface
Book ChapterDOI
Fundamentals of thermo-fluid-mechanical modeling in additive manufacturing processes
TL;DR: In this paper , the modeling fundamentals of thermal (fluid), metallurgical, and mechanical phenomena in additive manufacturing (AM) processes are discussed. But the authors do not consider the effects of nonisothermal plastic flow.
References
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Journal ArticleDOI
Mathematical modelling of solidification and melting: a review
Henry Hu,Stavros A. Argyropoulos +1 more
TL;DR: The major methods of mathematical modelling of solidification and melting problems are reviewed in this article, where basic guidelines are outlined to choose a correct mathematical formulation for solving solidification or melting problems.
Journal ArticleDOI
Computer modeling of heat flow in welds
TL;DR: In this paper, a nonlinear transient finite element analysis (FEA) is used to solve the fundamental equations for heat transfer in welds and a formulation for a non-linear finite element analyzer to solve them is described.
Journal ArticleDOI
Welding: Solidification and microstructure
TL;DR: In this paper, various physical processes that occur due to the interaction of the heat source with the metal during welding add a new dimension to the understanding of the weld pool solidification.