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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2022
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=49672695013 https://www.redalyc.org/journal/496/49672695013/ https://www.redalyc.org/journal/496/49672695013/html/ https://www.redalyc.org/journal/496/49672695013/49672695013.epub https://www.redalyc.org/journal/496/49672695013/movil |
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Sommario:
- Influence of zinc coating on nugget development and mechanical properties in dissimilar welded joints DP600 - AISI304 obtained by the RSW process Alejandro Espinel-Hernández Mario Sánchez-Orozco Angel Sánchez-Roca Lorenzo S. Caputi Louriel Oliveira-Villarinho Hipólito Carvajal-Fals Ingeniería galvanized steel dissimilar joints nugget development dynamic resistance mechanical properties This paper studies the influence of zinc coating of galvanized DP600 steel (DP600G) on nugget development and on the mechanical properties of dissimilar DP600 - AISI304 welded joints obtained by resistance spot welding process (RSW). RSW evaluations consisted of determining, from the dynamic resistance curves, the different stages involved in nugget formation. The experimental results showed that zinc coating on the DP600G steel has a significant influence on the time needed for the start of nugget formation, producing a two times longer delay for non-galvanized steel. Expulsion time was delayed by 1.12 times. The presence of Zn in DP600G/AISI304 welded joints produced smaller nugget diameters as compared to the DP600/AISI304 joints for the same experimental conditions; however, higher peak failure load values were obtained for the former. The causes of this unusual behavior are also analyzed in this paper. 2022 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49672695013 https://www.redalyc.org/journal/496/49672695013/ https://www.redalyc.org/journal/496/49672695013/html/ https://www.redalyc.org/journal/496/49672695013/49672695013.epub https://www.redalyc.org/journal/496/49672695013/movil 10.15446/dyna.v89n220.95334 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.220 Vol.89