Greater angle and overhanging materials deposition
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United States of America Patent
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N/A
Issued Date -
Jan 5, 2006
app pub date -
May 3, 2005
filing date -
Jul 7, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatuses and methods for producing greater angle or overhanging deposits on a structure. Nozzles for propelling powder at a target or structure for subsequent laser processing are preferably at a greater angle of powder entry than currently used. The nozzles are arranged around the laser beam and can be individual or disposed around an annular ring. The individual nozzles can be interchangeable with the annular ring. Discrete nozzles can be used in addition to or in place of the other nozzles, allowing angles of powder entry up to approximately 180.degree.. The nozzles may be translated or rotated with respect to the target along or about multiple axes. Also a method for temporarily supporting an overhang using weaker material under the overhang. The weaker material can be removed after the overhang is fabricated and solidified.
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