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Grundlagen der Modellierung elektrostatisch unterstützter Beschichtungsprozesse

Fundamentals of the modelling of electrostatically supported painting processes
: Ye, Q.

Fraunhofer-Institut für Produktionstechnik und Automatisierung -IPA-, Stuttgart:
Simulation in der Lackiertechnik : Fraunhofer IPA - Workshop, 4. November 2004, Stuttgart
Stuttgart, 2004 (Fraunhofer IPA Workshop)
Workshop Simulation in der Lackiertechnik <2004, Stuttgart>
Fraunhofer IPA ()
Beschichtungssimulation; Koronaaufladung; Schichtdicke; numerical simulation; spray painting; Film-Thickness; painting process; Beschichtung; Elektrostatisches Beschichten

The paper summarises the investigations performed at the Fraunhofer IPA on the numerical simulation of electrostatically supported spray painting processes used in the automotive industry. Three examples, i.e. high-speed rotary bell with contact charge system and external charge system, as well as powder coating simulation using a corona spray gun are showed. Numerical models for electrostatically supported painting processes were implemented in Fluent, a commercial CFD code based on an unstructured finite volume mesh. These models account for all important effects involved in the relevant physical processes, being able to predict the film thickness distribution and the paint transfer efficiency on the work piece.