Slag removal apparatus and method
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United States of America Patent
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Apr 28, 2015
Grant Date -
Jul 31, 2014
app pub date -
Jan 31, 2013
filing date -
Jan 31, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus (20, 21) and method (80) operable to: feed (82) a granulated feedstock (26) into a chamber (22); apply (84) a melting or sintering energy (28) in programmable scans (30) producing a material deposit (32) overlaid with slag (34) in the chamber (22); position (86) a slag removal device (40, 52) such that its cutting surface (35) is coincident with a top surface (33) of the material deposit; cut or break the slag free (88) from the material deposit with the slag removal device; separate (92) the removed slag from a reusable portion of the granulated feedstock in a separator (42); and feed (94) the reusable portion of the granulated feedstock to the top surface of the material deposit for repeating (96) the above operations.
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