Abstract
Laser Metal Deposition (LMD) is an additive manufacturing process whose dynamics are driven by complex heat transfer and fluid flow phenomena. The LMD process, along with every additive manufacturing process, is fundamentally a two-dimensional process possessing both temporal (or spatial) domain dynamics and propagation of information from layer to layer. However, modeling the two-dimensionality of the process for use in control has received little attention. Here, a model aimed at capturing the important nonlinear two-dimensional physical processes of the melt pool shape, while maintaining simplicity, is presented. The model is expressed in a form that lends itself to the design of repetitive process control schemes. An analytical tool is used to describe layer-to-layer stability properties of the process using the model, and insights into the fundamental stability limitations of the process are given. © 2014 American Automatic Control Council.
Recommended Citation
P. M. Sammons et al., "Control-oriented Modeling of Laser Metal Deposition as a Repetitive Process," Proceedings of the American Control Conference, pp. 1817 - 1820, article no. 6859064, Institute of Electrical and Electronics Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1109/ACC.2014.6859064
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
Iterative learning control; Manufacturing systems; Process control
International Standard Book Number (ISBN)
978-147993272-6
International Standard Serial Number (ISSN)
0743-1619
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2014
