Abstract
Due to low cost of operation, high deposition rates and efficiency, wire arc spraying has become one of the most important thermal spray technologies, especially as a tool for coatings used to improve corrosion and wear protection. In order to obtain high-quality coatings, the flow characteristics of the atomizing gas have to be optimized. Thus, the nozzle design as well as the properties of the gas used need to be adjusted and the resulting particle parameters have to be quantified. Employing the Accuraspray-g3 system in combination with Laser Doppler Anemometry (LDA), the particle size distribution and velocity have been measured for a wide range of parameters, including different materials, different gas pressures and nozzles resulting in design suggestions and offering the possibility to compare the two different diagnostic systems.
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The authors gratefully acknowledge the financial support of the DFG (German Science Foundation) and AiF (German Working Group of Industrial Research Association) within the Collaborative Research Center SFB 708 and within Research Center “Thermal Spraying”.
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Zimmermann, S., Vogli, E., Kauffeldt, M. et al. Supervision and Measuring of Particle Parameters During the Wire-Arc Spraying Process with the Diagnostic Systems Accuraspray-g3 and LDA (Laser-Doppler-Anemometry). J Therm Spray Tech 19, 745–755 (2010). https://doi.org/10.1007/s11666-009-9466-3
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DOI: https://doi.org/10.1007/s11666-009-9466-3