Scaling of Molten Metal Brazing Phenomena: Prolegomena for Model Formulation

  • Dusan P. Sekulic
Chapter

Abstract

This paper discusses a model of heat, momentum, and mass transfer prior to formation of an equilibrium membrane of the free surface, but after formation of a molten metal micro layer and/or metal filler liquid drop during brazing. Empirical evidence related to joint formation performed in a controlled atmosphere brazing is reviewed first. Aluminum brazing is considered as an example. This evidence includes the topology and morphology of a joint zone before and after joint formation. Based on understanding of involved phenomena, an analytical model of a molten metal micro layer of a sessile drop is discussed. A set of dimensionless parameters that governs the process is extracted from the model, and the orders of magnitudes of these parameters are assessed.

Keywords

Modeling scaling brazing 
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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Dusan P. Sekulic
    • 1
  1. 1.Department of Mechanical Engineering University of Kentucky Center for Manufacturing College of EngineeringUniversity of KentuckyLexingtonUSA

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