Thermal spray method and apparatus using plasma transferred wire arc
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United States of America Patent
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Nov 12, 2013
Grant Date -
Jun 28, 2012
app pub date -
Dec 22, 2011
filing date -
Dec 22, 2010
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Abstract
A method of thermally depositing metal onto a target surface using a plasma transferred wire arc thermal spray apparatus, wherein the method includes the steps of offsetting the central axis of a consumable wire with respect to an axial centerline of a constricting orifice; and establishing and operating a plasma transferred wire arc between a cathode and a free end of the consumable wire; and melting and atomizing a continually fed free end of the consumable wire into molten metal particles and projecting the particles onto said target surface.
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