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Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints

With the development of new energy vehicles, the joining of lightweight alloys has received more attention. Self-piercing riveting experiments of aluminum alloy and high-strength steel sheets were performed to analyze the effects of rivet height and laying order of metal sheets on the joining qualit...

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Autores principales: Zhou, Ze-Jie, Huang, Zhi-Chao, Jiang, Yu-Qiang, Tang, Nan-Lin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102905/
https://www.ncbi.nlm.nih.gov/pubmed/35591299
http://dx.doi.org/10.3390/ma15092962
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author Zhou, Ze-Jie
Huang, Zhi-Chao
Jiang, Yu-Qiang
Tang, Nan-Lin
author_facet Zhou, Ze-Jie
Huang, Zhi-Chao
Jiang, Yu-Qiang
Tang, Nan-Lin
author_sort Zhou, Ze-Jie
collection PubMed
description With the development of new energy vehicles, the joining of lightweight alloys has received more attention. Self-piercing riveting experiments of aluminum alloy and high-strength steel sheets were performed to analyze the effects of rivet height and laying order of metal sheets on the joining quality in the work. The forming surface, cross-sectional morphology, static tensile property, fatigue property, failure mode, and mechanism were analyzed. The results show that AA5052 alloy and SPFC440 steel can be joined effectively by self-piercing riveting, and there is good contact between rivet head and sheet surfaces. When the rivet is 2.5–3.5 mm higher than the total thickness of two layers sheets, the rivet leg flares symmetrically without cracks or buckling, and the lower sheet completely encapsulates the joint button. The joints have better static tensile properties when the rivet is about 3 mm higher than the thickness of two sheets. The higher static strength is obtained when the aluminum alloy is placed at the lower position. The rivet legs fall off from the lower sheets for all the samples in the tensile tests, which is independent of the rivet height and laying order of metal sheets. The fatigue strength of the sample with the rivet height of 7 mm is the greatest, and the fatigue cracks always occur on the aluminum sheet under all experimental conditions. The findings in this work can help the practical application of self-piercing riveting for aluminum/steel sheets.
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spelling pubmed-91029052022-05-14 Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints Zhou, Ze-Jie Huang, Zhi-Chao Jiang, Yu-Qiang Tang, Nan-Lin Materials (Basel) Article With the development of new energy vehicles, the joining of lightweight alloys has received more attention. Self-piercing riveting experiments of aluminum alloy and high-strength steel sheets were performed to analyze the effects of rivet height and laying order of metal sheets on the joining quality in the work. The forming surface, cross-sectional morphology, static tensile property, fatigue property, failure mode, and mechanism were analyzed. The results show that AA5052 alloy and SPFC440 steel can be joined effectively by self-piercing riveting, and there is good contact between rivet head and sheet surfaces. When the rivet is 2.5–3.5 mm higher than the total thickness of two layers sheets, the rivet leg flares symmetrically without cracks or buckling, and the lower sheet completely encapsulates the joint button. The joints have better static tensile properties when the rivet is about 3 mm higher than the thickness of two sheets. The higher static strength is obtained when the aluminum alloy is placed at the lower position. The rivet legs fall off from the lower sheets for all the samples in the tensile tests, which is independent of the rivet height and laying order of metal sheets. The fatigue strength of the sample with the rivet height of 7 mm is the greatest, and the fatigue cracks always occur on the aluminum sheet under all experimental conditions. The findings in this work can help the practical application of self-piercing riveting for aluminum/steel sheets. MDPI 2022-04-19 /pmc/articles/PMC9102905/ /pubmed/35591299 http://dx.doi.org/10.3390/ma15092962 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhou, Ze-Jie
Huang, Zhi-Chao
Jiang, Yu-Qiang
Tang, Nan-Lin
Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title_full Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title_fullStr Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title_full_unstemmed Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title_short Joining Properties of SPFC440/AA5052 Multi-Material Self-Piercing Riveting Joints
title_sort joining properties of spfc440/aa5052 multi-material self-piercing riveting joints
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9102905/
https://www.ncbi.nlm.nih.gov/pubmed/35591299
http://dx.doi.org/10.3390/ma15092962
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