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Implementation of Advanced Laser Control Strategies for Powder Bed Fusion Systems

Published

Author(s)

Ho Yeung, Brandon Lane, Alkan Donmez, Jason Fox, Jorge Neira

Abstract

Laser path, scan speed, and laser power are critical machine parameters determining the quality of the output of laser-based powder bed fusion (LPBF) processes. A jerk-limited control strategy is implemented for laser path planning on a LPBF additive manufacturing (AM) testbed. The actual and commanded laser paths/velocities are found in a better agreement with each other compared to conventional controls. The new controller enabled implementation of advanced laser power control strategies synchronized with laser position and velocity by embedding all into a modified G-code (referred as AM G-code). An interpreter is developed to utilize sophisticated LPBF laser control commands.
Proceedings Title
Procedia Manufacturing
Volume
26
Conference Dates
June 18-22, 2018
Conference Location
College Station, TX, US
Conference Title
46th SME North American Manufacturing Research Conference, NAMRC 46

Keywords

Laser Powder Bed Fusion, Additive Manufacturing, Scan Strategies, G-code, Jerk-limited Control

Citation

Yeung, H. , Lane, B. , Donmez, A. , Fox, J. and Neira, J. (2018), Implementation of Advanced Laser Control Strategies for Powder Bed Fusion Systems, Procedia Manufacturing, College Station, TX, US, [online], https://doi.org/10.1016/j.promfg.2018.07.112, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=922635 (Accessed June 23, 2024)

Issues

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Created June 21, 2018, Updated April 19, 2022