Invention Grant
- Patent Title: Controlling AM spatter and conduction
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Application No.: US16217351Application Date: 2018-12-12
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Publication No.: US10994337B2Publication Date: 2021-05-04
- Inventor: Saad A. Khairallah , Gabe Guss , Wayne E. King , Sonny S. Ly , Manyalibo Joseph Matthews , Alexander M. Rubenchik
- Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
- Applicant Address: US CA Livermore
- Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
- Current Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
- Current Assignee Address: US CA Livermore
- Agent Eddie E. Scott
- Main IPC: B22F10/368
- IPC: B22F10/368 ; B29C64/153 ; B23K26/00 ; B23K26/342 ; B29C64/20 ; B23K26/062 ; B23K26/073 ; B23K26/06 ; B29C64/393 ; B22F10/85

Abstract:
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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