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Local Reinforcement of SPIF-Formed Mg-Zn-Zr Alloy Thin Sheets by TIG Welding

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Abstract:

This study investigates a hybrid manufacturing route combining heat-assisted Single Point Incremental Sheet Forming (SPIF) with Tungsten Inert Gas welding (TIG)-based material deposition for the local reinforcement of Mg–Zn–Zr (ZK61) alloy thin sheets. Flat and curved substrates extracted from SPIF-formed geometries were used to examine the influence of substrate thickness, forming temperature, and geometry on TIG deposition morphology and thermal distortion. The results indicate that heat input and substrate thickness strongly affect deposition morphology and dimensional stability, while SPIF sheet forming temperature influences the repeatability of the deposition process. In addition, deposition behavior exhibited limited sensitivity to substrate curvature for single depositions, whereas successive depositions resulted in increased thermal distortion due to cumulative residual stresses. Overall, this work identifies key process sensitivities and constraints associated with TIG deposition on SPIF-formed magnesium alloy sheets, providing a basis for the development of hybrid forming-deposition process chains for localized reinforcement applications.

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Periodical:

Solid State Phenomena (Volume 389)

Pages:

295-303

DOI:

https://doi.org/10.4028/p-vWwaU4

Citation:

Cite this paper

Online since:

April 2026

Authors:

Ecem Ozden*, Oleksandr Kurtov, Hans Vanhove, Joost R. Duflou

Keywords:

Hybrid Manufacturing, Magnesium, Single Point Incremental Forming, TIG Welding

Funder:

The publication of this article was funded by the KU Leuven 10.13039/501100004040

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Creative Commons CC BY 4.0

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* - Corresponding Author

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