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1135 |
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Tuesday, June 03, 2008, Room 05 9:10 AM Arc and Laser Spraying Ongoing developments in the field of arc spraying including possibilities for modeling this widely known surface coating technology |
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Wire arc spraying technology for spraying particle reinforced coatings
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Fred van Rodijnen* / Sulzer Metco OSU GmbH, Germany Stephan Knapp / Sulzer Metco OSU GmbH, Germany Johannes Wilden/ Technical University of Ilmenau, Germany Simon Jahn/ Technical University of Ilmenau, Germany Sebastian Reich/ Technical University of Ilmenau, Germany Georg Fischer/ Technical University of Ilmenau, Germany |
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The introduction of new wire arc spraying equipment with chopped power sources offers many possibilities to improve the wire arc spraying process. These power sources provide higher process stability even at reduced voltages. On the one hand conventional applications can be enhanced and on the other hand new processes can be developed. Due to the high process stability the introduction of additional particles into the atomizing gas stream is possible. This can be applied to produce coatings with a high wear resistance as well as a high surface roughness. A combined technology of particle injection and the productive wire arc spraying process enables the economic production of innovative functional surfaces. In this paper strategies for inserting particles into the gas stream and experimental results are shown for iron based coatings. For the reinforcement different carbides were injected into the atomizing gas stream. |