Gas Metal Arc Welding (GMAW) is a manufacturing technology included within the differentWire
Arc Additive Manufacturing alternatives. These technologies have been generating great
attention among scientists in recent decades. Its main qualities that make it highly productive with
a large use of material with relatively inexpensive machine solutions make it a very advantageous
technology. This paper covers the application of this technology for the manufacture of thin-walled
parts. A finite element model is presented for estimating the deformations in this type of parts.
This paper presents a simulation model that predicts temperatures with less than 5% error and
deformations of the final part that, although quantitatively has errors of 20%, qualitatively allows
to know the deformation modes of the part. Knowing the part areas subject to greater deformation
may allow the future adaptation of deposition strategies or redesigns for their adaptation. These
models are very useful both at a scientific and industrial level since when we find ourselves with a
technology oriented to Near Net Shape (NNS) manufacturing where deformations are critical for
obtaining the final part in a quality regime.This research was funded by the vice-counseling of technology, innovation and competitiveness of the Basque Government grant agreement kk-2019/00004 (PROCODA project) and the QUALYFAM project, through the ELKARTEK 2020 (KK-2020/00042) and the ADIFIX project funded by HAZITEK 2019 and 2020 (ZL-2019/00738, ZL-2020/00073) programs and the Spanish Government CDTI-Red Cervera Programme (EXP 00123730/IDI-20191162)