Focusing optics for adaptive deposition in rapid manufacturing
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United States of America Patent
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Mar 23, 2004
Issued Date -
N/A
app pub date -
May 22, 2002
filing date -
May 22, 2001
priority date (Note) -
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Abstract
Continuously adjustable focusing optics for use in laser-assisted direct metal deposition (DMD.TM.) processes provide for adaptive deposition width to increase deposition rate while maintaining the dimensional tolerances. The focusing optics and method may be adapted for variable deposition road width under closed-loop feedback, so that complicated features may be fabricated with close tolerance, stress and microstructure control to improve the lead-time and design flexibility. The preferred embodiment uses adaptive mirror arrangements and beam movement for variable deposition width and geometry. Conceptually, an infinite number of mirror arrangements can be made to adapt to a particular deposit shape.
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