Modeling of Spray-Formed Materials: Geometrical Considerations
作者： Y. J. Lin , E. J. Lavernia , J. E. Bobrow , D. R. White
DOI: 10.1007/BF02830347
关键词: Rotational symmetry 、 Projection (linear algebra) 、 Shape factor 、 Spray forming 、 Materials science 、 Surface (mathematics) 、 Base (geometry) 、 Mechanics 、 Deposition (phase transition) 、 Angular velocity 、 Metallurgy
摘要: In this article, a mathematical model is formulated to predict the evolution and final geometry of an axisymmetric billet (i.e., round) obtained using off-axis spray arrangement. The by calculating shape change profile curve surface, based on surface. On basis model, methodology determine “shadowing effect” coefficient presented. modeling results suggest that there are three distinct regions in spray-formed billet: base transition region, uniform diameter upper region. effects several important processing parameters, such as withdrawal velocity substrate, maximum deposition rate, distribution coefficient, initial eccentric distance, rotational factors (e.g., size region regions) investigated. mechanisms responsible for formation discussed. Finally, then implemented establish optimal parameters during forming, paying particular attention efficiency.
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