Additive manufacturing power map to mitigate defects

Patent · Tue Apr 13 00:00:00 EDT 2021

OSTI ID:1823829

Khairallah, Saad A.; Guss, Gabe; King, Wayne E.; Matthews, Manyalibo Joseph

A laser powder bed fusion additive manufacturing system for producing a part by creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the part and using the power map to control the laser powder bed fusion additive manufacturing for producing the part. This includes an apparatus for producing a part including a powder bed, a laser that produces a laser beam, a proportional integral derivative controller that creates a power map that describes laser power requirements as the laser moves along a path, wherein the laser power requirements prevent defects in the part.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 10,974,456
• Application Number: 16/145,483
• OSTI ID: 1823829
• Resource Relation: Patent File Date: 09/28/2018
• Country of Publication: United States
• Language: English