Thermal modelling and simulation of Wire Arc Additive Manufacturing

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dc.contributor.advisorBalogh, Gábor
dc.contributor.authorSekar, Pugazhanthi
dc.contributor.departmentDE--Műszaki Kar
dc.date.accessioned2026-01-28T19:36:12Z
dc.date.available2026-01-28T19:36:12Z
dc.date.created2025-11-24
dc.description.abstractThis thesis details the development and validation of a Finite Element Method (FEM) transient thermal model for the Wire Arc Additive Manufacturing (WAAM) process, focusing on single-layer deposition of Stainless Steel 316L and Ti-6Al-4V alloys. The core objective was to accurately predict the thermal behavior, addressing the challenges of complex thermal history and heat accumulation that govern the final part's microstructure and mechanical properties. The model successfully implemented Goldak's Double Ellipsoidal heat source and temperature-dependent material properties, predicting realistic peak temperatures (up to 2800 ∘C) and melt pool dimensions (e.g., 6.2mm width, 3.4mm depth for SS316L) consistent with established experimental literature. The findings validated the FEM framework for predicting thermal gradients and cooling rates (150−250 ∘C/s at the surface), offering a crucial tool for optimizing WAAM process parameters and guiding future research into residual stress and microstructure modeling.
dc.description.courseMechanical Engineeringen
dc.description.degreeMSc/MA
dc.format.extent53p
dc.identifier.urihttps://hdl.handle.net/2437/403741
dc.language.isoen
dc.rights.infoHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjectThermal gradients
dc.subjectWire Arc Additive Manufacutring
dc.subjectGoldak's double ellipsoidal Heat source
dc.subjectMoving heat source
dc.subject.dspaceEngineering Sciences
dc.titleThermal modelling and simulation of Wire Arc Additive Manufacturing
dc.title.translatedA huzalíves additív gyártás termikus modellezése és szimulációja
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