Repetitive Process Control of Laser Metal Deposition
Abstract
The Laser Metal Deposition (LMD) process is an additive manufacturing process in which a laser and a powdered material source are used to build functional metal parts in a layer by layer fashion. While the process is usually modeled by purely temporal dynamic models, the process is more aptly described as a repetitive process with two sets of dynamic processes: one that evolves in position within the layer and one that evolves in part layer. Therefore, to properly control the LMD process, it is advantageous to use a model of the LMD process that captures the dominant two dimensional phenomena and to address the two-dimensionality in process control. Using an identified spatial-domain Hammerstein model of the LMD process, the open loop process stability is examined. Then, a stabilizing controller is designed using error feedback in the layer domain.
Recommended Citation
P. M. Sammons et al., "Repetitive Process Control of Laser Metal Deposition," ASME 2014 Dynamic Systems and Control Conference, DSCC 2014, vol. 2, article no. 6173, American Society of Mechanical Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1115/DSCC2014-6173
Department(s)
Mechanical and Aerospace Engineering
International Standard Book Number (ISBN)
978-079184619-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Mechanical Engineers, All rights reserved.
Publication Date
01 Jan 2014
