𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An integrated numerical model of the spray forming process

✍ Scribed by N.H. Pryds; J.H. Hattel; T.B. Pedersen; J. Thorborg

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
317 KB
Volume
50
Category
Article
ISSN
1359-6454

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper, an integrated approach for modelling the entire spray forming process is presented. The basis for the analysis is a recently developed model which extents previous studies and includes the interaction between an array of droplets and the enveloping gas. The formulation of the deposition model is accomplished using a 2D cylindrical heat flow model. This model is now coupled with an atomization model via a log-normal droplet size distribution. The coupling between the atomization and the deposition is accomplished by ensuring that the total droplet size distribution of the spray is in fact the summation of 'local' droplet size distributions along the r-axis. A key parameter, which determines the yield and the shape of the deposit material, is the sticking efficiency. The sticking phenomenon is therefore incorporated into the deposition model.

πŸ“œ SIMILAR VOLUMES

Multiphysics modelling of the spray form
Multiphysics modelling of the spray forming process
✍ J. Mi; P.S. Grant; U. Fritsching; O. Belkessam; I. Garmendia; A. Landaberea πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 525 KB
Sequential thermal modelling of the spra
Sequential thermal modelling of the spray-forming process
✍ Dirk Bergmann; Udo Fritsching πŸ“‚ Article πŸ“… 2004 πŸ› Elsevier Science 🌐 French βš– 884 KB

Three modules describing metal behaviour during sequential stages of the spray-forming process are coupled in this contribution to provide an integrated thermal simulation of the process. These sub-models describe the melt delivery to the atomizer (tundish), the spray, and the consolidation. Process

Heat transfer characterization of the so
Heat transfer characterization of the solidification process resulting from a spray forming process
✍ Xiaoling Sheng; Calvin Mackie; Carsie A. Hall III πŸ“‚ Article πŸ“… 2005 πŸ› Elsevier Science 🌐 English βš– 175 KB

Spray forming is achieved by atomizing a liquid metal sheet with an inert gas to form molten droplets, which are then subsequently deposited onto a moving cold substrate. During spray deposition processes, the developing pre-form loses thermal energy through a combination of heat transfer processes.