Adeline Tchikango Siagam1, Gunther Brenner1, Peter Giese2, Volker Wesling2
FDMP-Fluid Dynamics & Materials Processing, Vol.4, No.2, pp. 77-84, 2008, DOI:10.3970/fdmp.2008.004.077
Abstract The PTA (''Plasma-Transferred-Arc'') is a widespread variant of plasma powder processes to manufacture coatings against corrosion or abrasion. For the optimization of this technique, an explanation of the processes which lead to a maximal deposition performance (i.e. maximal quantity of powder converted per time) is required. Especially the gas and particle flow in the region between the burner nozzle and the work piece is of interest. In the present study, flow simulations (Computational Fluid Dynamics, CFD) have been done in order to investigate the determining factors for the dimensioning of the processes. Additionally, velocity measurements have been obtained with PIV… More >
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