This paper presents a computational framework that optimizes process parameters to maximize bond quality between polymer filaments in fused filament fabrication (FFF). It couples transient heat‑transfer analysis with a sintering neck growth model, quantifies uncertainty from both aleatory and epistemic sources, and incorporates model discrepancy via a Gaussian process surrogate. Sensitivity analysis using Sobol indices and physical experiments for calibration validate that the optimized parameters yield high bond quality.
By Berkcan Kapusuzoglu, Matthew Sato, Sankaran Mahadevan, Paul Witherell
The article explores physics-informed and hybrid machine learning approaches for predicting bond quality and porosity in fused filament fabrication (FFF) parts. It examines three strategies—embedding physics constraints in the loss function, adding physics model outputs as inputs, and pre‑training with physics data—to enforce consistency with physical laws. Eight combinations of these strategies are tested, showing that integrating multiple approaches yields accurate predictions even with limited experimental data.
By Berkcan Kapusuzoglu, Sankaran Mahadevan
arXiv:2606. 04850v1 Announce Type: cross Abstract: Designing a neural network processor is an end-to-end co-design problem: network architecture and training budget determine the inference workload; hardware mapping decisions determine chip area, latency, and energy; and these characteristics govern fabrication yield and manufacturing cost.
By Yuyang Du, Yujun Huang, Gioele Zardini
arXiv:2606. 16032v1 Announce Type: cross Abstract: Interest in applying data-driven approaches in manufacturing has grown significantly, particularly for mapping complex, high-dimensional relationships.
By Hadi Bakhshan, Sima Farshbaf, Fernando Rastellini, Josep Maria Carbonell
This study presents a multi-fidelity framework for the systematic optimization of genetic algorithm (GA) hyperparameters. The framework integrates three fidelity levels: high-fidelity Fast Fourier Transform (FFT) homogenization for validation, a medium-fidelity 3D convolutional neural network surrogate for rapid property evaluation, and a low-fidelity Gaussian process (GP) surrogate within a Bayesian optimization (BO) framework to guide the hyperparameter search.
arXiv:2607. 07289v1 Announce Type: cross Abstract: This study presents a multi-fidelity framework for the systematic optimization of genetic algorithm (GA) hyperparameters.
By Sergei Zorkaltsev, Maciej Haranczyk, Christina Schenk