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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Transient Thermal Modeling and Experimental Validation of WAAM-Fabricated 316L Stainless Steel Using Julia
Author(s) Abdullah All Sayeed, Stibitz Christin, Hossein Taheri, Bishal Silwal
On-Site Speaker (Planned) Abdullah All Sayeed
Abstract Scope Wire Arc Additive Manufacturing (WAAM) of 316L stainless steel was investigated using a transient two-dimensional thermal model developed in Julia with a finite-volume framework (JFVM). The model incorporated temperature-dependent heat-transfer boundary conditions to predict temperature evolution and cooling-rate behavior during GMAW-based deposition. Numerical predictions were validated against experimentally measured thermal histories obtained from deposition trials performed at wire-feed rates of 375–400 in/min and travel speeds of 30–40 in/min. Experimental measurements indicated cooling rates ranging from 65.65 to 176.5 K/s, demonstrating good agreement with the model predictions. Thermal variations influenced solidification behavior, yielding secondary dendrite arm spacing (SDAS) values of 6.32–9.38 µm. The validated experimental–numerical framework demonstrates the effectiveness of numerical modeling for predicting thermal behavior and optimizing WAAM process parameters for 316L stainless steel components.
Proceedings Inclusion? Undecided

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