Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing

Surrogate models (SM) serve as a proxy to the physics- and experiment-based models to significantly lower the cost of prediction while providing high accuracy. Building an SM for additive manufacturing (AM) process suffers from high dimensionality of inputs when part geometry or tool-path is conside...

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Main Authors: Mriganka Roy, Olga Wodo
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/9/2239
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author Mriganka Roy
Olga Wodo
author_facet Mriganka Roy
Olga Wodo
author_sort Mriganka Roy
collection DOAJ
description Surrogate models (SM) serve as a proxy to the physics- and experiment-based models to significantly lower the cost of prediction while providing high accuracy. Building an SM for additive manufacturing (AM) process suffers from high dimensionality of inputs when part geometry or tool-path is considered in addition to the high cost of generating data from either physics-based models or experiments. This paper engineers features for a surrogate model to predict the consolidation degree in the fused filament fabrication process. Our features are informed by the physics of the underlying thermal processes and capture the characteristics of the part’s geometry and the deposition process. Our model is learned from medium-size data generated using a physics-based thermal model coupled with the polymer healing theory to determine the consolidation degree. Our results demonstrate high accuracy (>90%) of consolidation degree prediction at a low computational cost (four orders of magnitude faster than the numerical model).
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spelling doaj.art-b69b3263f10540cf9cff0356755903fe2023-11-21T17:19:19ZengMDPI AGMaterials1996-19442021-04-01149223910.3390/ma14092239Feature Engineering for Surrogate Models of Consolidation Degree in Additive ManufacturingMriganka Roy0Olga Wodo1Mechanical and Aerospace Engineering Department, University at Buffalo, Buffalo, NY 14260, USAMaterials Design and Innovation Department, University at Buffalo, Buffalo, NY 14260, USASurrogate models (SM) serve as a proxy to the physics- and experiment-based models to significantly lower the cost of prediction while providing high accuracy. Building an SM for additive manufacturing (AM) process suffers from high dimensionality of inputs when part geometry or tool-path is considered in addition to the high cost of generating data from either physics-based models or experiments. This paper engineers features for a surrogate model to predict the consolidation degree in the fused filament fabrication process. Our features are informed by the physics of the underlying thermal processes and capture the characteristics of the part’s geometry and the deposition process. Our model is learned from medium-size data generated using a physics-based thermal model coupled with the polymer healing theory to determine the consolidation degree. Our results demonstrate high accuracy (>90%) of consolidation degree prediction at a low computational cost (four orders of magnitude faster than the numerical model).https://www.mdpi.com/1996-1944/14/9/2239additive manufacturingdata-driven approachfused filament fabrication
spellingShingle Mriganka Roy
Olga Wodo
Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
Materials
additive manufacturing
data-driven approach
fused filament fabrication
title Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
title_full Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
title_fullStr Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
title_full_unstemmed Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
title_short Feature Engineering for Surrogate Models of Consolidation Degree in Additive Manufacturing
title_sort feature engineering for surrogate models of consolidation degree in additive manufacturing
topic additive manufacturing
data-driven approach
fused filament fabrication
url https://www.mdpi.com/1996-1944/14/9/2239
work_keys_str_mv AT mrigankaroy featureengineeringforsurrogatemodelsofconsolidationdegreeinadditivemanufacturing
AT olgawodo featureengineeringforsurrogatemodelsofconsolidationdegreeinadditivemanufacturing