Laser pulse shaping for additive manufacturing

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12214551
APP PUB NO 20230405927A1
SERIAL NO

18460845

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Importance

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Abstract

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The present disclosure relates to a method involving a substrate having an interface layer, wherein the interface layer (IL) forms only an upper surface portion of the substrate, and a feedstock material (FM) placed on the IL. The method involves using a laser system to generate first and second beam components providing first and second power flux levels, respectively, where the second level is greater than the first. The FM is heated to a first level short of a melting point using the first beam component, at which point the particles of the FM begin to experience surface tension forces relative to the IL. Further heating the FM to a second level melts the FM and also melts the IL of the substrate, but where a portion of the IL remains unmelted by the second beam component as the particles of the FM and the IL are bonded together.

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Patent Owner(s)

  • LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bayramian, Andrew J Marblehead, US 48 69
Demuth, James A Woburn, US 103 861
Duoss, Eric B Danville, US 75 459
Kuntz, Joshua D Livermore, US 56 565
Spadaccini, Christopher M Oakland, US 47 287

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