A detailed forecast of the technologies based on lifecycle analysis of GMAW and CMT welding processes
Author
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Oliveira, André Souza
Author
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Dos Santos, Raphael Oliveira
Author
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Dos Santos Silva, Bruno Caetano
Author
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Nani Guarieiro, Lilian Lefol
Author
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Angerhausen, Matthias
Author
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Reisgen, Uwe
Author
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Sampaio, Renelson Ribeiro
Author
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Souza Machado, Bruna Aparecida
Author
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López Droguett, Enrique Andrés
Author
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Ferreira da Silva, Paulo Henrique
Author
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Coelho, Rodrigo Santiago
Admission date
dc.date.accessioned
2021-12-06T14:42:39Z
Available date
dc.date.available
2021-12-06T14:42:39Z
Publication date
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2021
Cita de ítem
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Sustainability 2021, 13, 3766
es_ES
Identifier
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10.3390/su13073766
Identifier
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https://repositorio.uchile.cl/handle/2250/183068
Abstract
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In this study, GMAW and CMT welding technologies were evaluated in terms of their technological lifecycles based on their patent datasets together with the S-curve concept, and the joints were evaluated in terms of their welding characteristics. To predict the future trends for both technologies, different models based on the time-series and growth-curve methods were tested. From a process point of view, the results showed better performance and stability for the CMT process based on the heat input to the base material and the frequency of the short circuits. The temperature distribution in the sample revealed that the GMAW process delivers higher values and, consequently, greater heat transfer. Regarding the technological lifecycle, the analyses revealed that the CMT welding process, despite being recent, is already in its mature phase. Moreover, the GMAW welding process is positioned in the growth phase on the S-curve, indicating a possibility of advancement. The main findings indicated that through mathematical modelling, it is possible to predict, in a precise way, the inflection points and the maturity phases of each technology and chart their trends with expert opinions. The new perspectives for analysing maturity levels and welding characteristics presented herein will be essential for a broaden decision-making market process.
es_ES
Lenguage
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en
es_ES
Publisher
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MDPI
es_ES
Type of license
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Attribution-NonCommercial-NoDerivs 3.0 United States