Controlling AM spatter and conduction

Khairallah, Saad A.; Guss, Gabe; King, Wayne E.; Ly, Sonny S.; Matthews, Manyalibo Joseph; Rubenchik, Alexander M.

Title: Controlling AM spatter and conduction

Patent · Tue May 04 00:00:00 EDT 2021

OSTI ID:1823916

Khairallah, Saad A.; Guss, Gabe; King, Wayne E.; Ly, Sonny S.; Matthews, Manyalibo Joseph; Rubenchik, Alexander M.

An intelligent feed forward model to control additive manufacturing (AM) laser powder bed fusion process and reduce spattering whereby defects are eliminated by controlling the laser power and reducing spattering through a computer model. This application describes using a proportional integral derivative (PID) controller to create a power map that reduces spattering.

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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):: 10,994,337

Application Number:: 16/217,351

OSTI ID:: 1823916

Resource Relation:: Patent File Date: 12/12/2018

Country of Publication:: United States

Language:: English

References (6)

Spatter Reduction Laser Scanning Strategy in Selective Laser Melting Khairallah, Saad https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170106593 US Patent Application 14/882762; 20170106593	patent-application	April 2017
Accurate three-dimensional printing Buller, Benyamin; Lappas, Tasso; Lappen, Alan Rick https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9919360 US Patent Document 9,919,360	patent	March 2018
Accurate Three-Dimensional Printing Buller, Benyamin; Milshtein, Erel; Levin, Evgeni https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170239719 US Patent Application 15/435090; 20170239719	patent-application	August 2017
System and Method for Additive Manufacturing Process Control Beacham, JR., Jimmie Autrey; Abitz, Steven Adam https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170087634 US Patent Application 14/871120; 20170087634	patent-application	March 2017
Method for performing multiple beam laser sintering employing focussed and defocussed laser beams Benda, John A.; Parasco, Aristotle https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5393482 US Patent Document 5,393,482	patent	February 1995
Method for performing temperature-controlled laser sintering Benda, John A.; Parasco, Aristotle https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5427733 US Patent Document 5,427,733	patent	June 1995

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