Optical scanning application for numerical calibration of strain analysis on injection molded rail fastening components
Giulia Zaniboni, Keltoum Oubellaouch, Riccardo Pelaccia, Vincenzina Siciliani, Leonardo Orazi, Barbara Reggiani
Abstract. In the injection molding process, handling shrinkage is crucial to reduce warpage in molded parts. As demand increases for complex components with high-quality standards, including tight tolerances and defect-free parts, numerical tools have become essential for optimizing the process and improving product performance. This work proposes a novel method to accurately predict part warpage using the Anisotropic Thermo-Viscous Elastic Residual Stress Model implemented in Moldflow, with a focus on calibrating numerical simulations through manual adjustment of the Coefficients of Linear Thermal Expansion (CLTE). Using optical 3D scanning acquisitions to compare experimental results with simulation predictions, the method enables precise calibration that reduces numerical-experimental discrepancies in warpage predictions.
Keywords
Warpage Analysis, 3D Scanning, Injection Molding, Calibration, Numerical Model
Published online 5/7/2025, 10 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Giulia Zaniboni, Keltoum Oubellaouch, Riccardo Pelaccia, Vincenzina Siciliani, Leonardo Orazi, Barbara Reggiani, Optical scanning application for numerical calibration of strain analysis on injection molded rail fastening components, Materials Research Proceedings, Vol. 54, pp 2426-2535, 2025
DOI: https://doi.org/10.21741/9781644903599-262
The article was published as article 262 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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