Datum
2024-04-08Schlagwort
600 Technik 620 Ingenieurwissenschaften Elektromagnetisches PulsschweißenPressschweißenVerbindungstechnikElektrischer LeiterAluminiumMechanische EigenschaftMetadata
Zur Langanzeige
Aufsatz
The shown results were achieved in the project “Dauerfeste Litze-Ableiter-Verbindungen mit verbesserten elektrischen Eigenschaften mittels Magnetimpulsschweißen (MPWire)” (reference IGF 20.813 N), which is supervised by the Forschungsvereinigung Schweißen und verwandte Verfahren e.V. of the German Welding Society and funded by the German Federation of Industrial Research Associations (AiF) by means of the Federal Ministry for Economic Affairs and Climate Action (BMWK) on the basis of a decision by the German Bundestag.
Enabling magnetic pulse welding for dissimilar tubular arrester cable joints
Zusammenfassung
Climate change exacerbates the need for resource-efficient and cost-effective production processes across manifold industries, including the field of electrical connections. This specific field is characterized by a conflict of objectives, i.e., weight reductions while maintaining joint strength and electrical conductivity. From a material point of view, the use of aluminum as a conductor material is suitable for this application, as it is lighter than copper, a classical conductor material. Electrical conductors are often used in the form of flexible cables, so-called stranded wires. This type of conductor as well as the fact that the sole use of aluminum in electrical systems is not feasible, e.g., because the predetermined connection terminals of power electronic components are made of copper, creates a substantial demand for dissimilar aluminum-copper cable arrester joints. However, traditional fusion-based welding processes have proved incapable of reliably producing these dissimilar aluminum-copper joints because of thermophysical effects and chemical incompatibilities, the latter eventually leading to the formation of intermetallic phases. These phases adversely affect the quality of the joint in terms of both mechanical and electrical performance. Yet, magnetic pulse welding, a pressure welding process, is ideally suited for producing dissimilar metal joints on the basis of a low energy input during the welding process. Consequently, the formation of intermetallic phases is restrained. However, magnetic pulse welding has not been sufficiently investigated for the reliable contacting of stranded cables to tubular arresters. As a result, this paper focuses on the fabrication of tubular stranded cable arrester joints using magnetic pulse welding. To shed light on possible material combinations, aluminum-to-aluminum and copper-to-copper joints as well as their dissimilar counterparts are welded. Subsequently, the joints are characterized with regard to their microstructure and quasi-static material strength. Electrical characterization comprises the four-wire Kelvin measurement method to evaluate the resistance of the electrical joints. The results demonstrate that magnetic pulse welding is ideally suited to join the aforementioned material combination and joint configuration due to its process characteristics eventually leading to material continuity. As a result, the stranded wires are welded to the tubular arresters rather than crimped. Consequently, a comparative analysis of the joint properties with those of the joining partners shows that the measured electrical resistances and mechanical tensile forces may be considered very good.
Zitierform
In: Welding in the World Volume 68 / Issue 7 (2024-04-08) , S. 1837-1852 ; eissn:1878-6669Förderhinweis
Gefördert im Rahmen des Projekts DEALThe shown results were achieved in the project “Dauerfeste Litze-Ableiter-Verbindungen mit verbesserten elektrischen Eigenschaften mittels Magnetimpulsschweißen (MPWire)” (reference IGF 20.813 N), which is supervised by the Forschungsvereinigung Schweißen und verwandte Verfahren e.V. of the German Welding Society and funded by the German Federation of Industrial Research Associations (AiF) by means of the Federal Ministry for Economic Affairs and Climate Action (BMWK) on the basis of a decision by the German Bundestag.
Zitieren
@article{doi:10.17170/kobra-2024062010370,
author={Graß, Markus and Sommer, Niklas and Böhm, Stefan},
title={Enabling magnetic pulse welding for dissimilar tubular arrester cable joints},
journal={Welding in the World},
year={2024}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2024$n2024 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15873 3000 Graß, Markus 3010 Sommer, Niklas 3010 Böhm, Stefan 4000 Enabling magnetic pulse welding for dissimilar tubular arrester cable joints / Graß, Markus 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15873=x R 4204 \$dAufsatz 4170 5550 {{Elektromagnetisches Pulsschweißen}} 5550 {{Pressschweißen}} 5550 {{Verbindungstechnik}} 5550 {{Elektrischer Leiter}} 5550 {{Aluminium}} 5550 {{Mechanische Eigenschaft}} 7136 ##0##http://hdl.handle.net/123456789/15873
2024-06-21T13:06:18Z 2024-06-21T13:06:18Z 2024-04-08 doi:10.17170/kobra-2024062010370 http://hdl.handle.net/123456789/15873 Gefördert im Rahmen des Projekts DEAL The shown results were achieved in the project “Dauerfeste Litze-Ableiter-Verbindungen mit verbesserten elektrischen Eigenschaften mittels Magnetimpulsschweißen (MPWire)” (reference IGF 20.813 N), which is supervised by the Forschungsvereinigung Schweißen und verwandte Verfahren e.V. of the German Welding Society and funded by the German Federation of Industrial Research Associations (AiF) by means of the Federal Ministry for Economic Affairs and Climate Action (BMWK) on the basis of a decision by the German Bundestag. eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ magnetic pulse welding pressure welding collision welding electrical joints conductor materials stranded cables 600 620 Enabling magnetic pulse welding for dissimilar tubular arrester cable joints Aufsatz Climate change exacerbates the need for resource-efficient and cost-effective production processes across manifold industries, including the field of electrical connections. This specific field is characterized by a conflict of objectives, i.e., weight reductions while maintaining joint strength and electrical conductivity. From a material point of view, the use of aluminum as a conductor material is suitable for this application, as it is lighter than copper, a classical conductor material. Electrical conductors are often used in the form of flexible cables, so-called stranded wires. This type of conductor as well as the fact that the sole use of aluminum in electrical systems is not feasible, e.g., because the predetermined connection terminals of power electronic components are made of copper, creates a substantial demand for dissimilar aluminum-copper cable arrester joints. However, traditional fusion-based welding processes have proved incapable of reliably producing these dissimilar aluminum-copper joints because of thermophysical effects and chemical incompatibilities, the latter eventually leading to the formation of intermetallic phases. These phases adversely affect the quality of the joint in terms of both mechanical and electrical performance. Yet, magnetic pulse welding, a pressure welding process, is ideally suited for producing dissimilar metal joints on the basis of a low energy input during the welding process. Consequently, the formation of intermetallic phases is restrained. However, magnetic pulse welding has not been sufficiently investigated for the reliable contacting of stranded cables to tubular arresters. As a result, this paper focuses on the fabrication of tubular stranded cable arrester joints using magnetic pulse welding. To shed light on possible material combinations, aluminum-to-aluminum and copper-to-copper joints as well as their dissimilar counterparts are welded. Subsequently, the joints are characterized with regard to their microstructure and quasi-static material strength. Electrical characterization comprises the four-wire Kelvin measurement method to evaluate the resistance of the electrical joints. The results demonstrate that magnetic pulse welding is ideally suited to join the aforementioned material combination and joint configuration due to its process characteristics eventually leading to material continuity. As a result, the stranded wires are welded to the tubular arresters rather than crimped. Consequently, a comparative analysis of the joint properties with those of the joining partners shows that the measured electrical resistances and mechanical tensile forces may be considered very good. open access Graß, Markus Sommer, Niklas Böhm, Stefan doi:10.1007/s40194-024-01760-2 IGF 20.813 N Elektromagnetisches Pulsschweißen Pressschweißen Verbindungstechnik Elektrischer Leiter Aluminium Mechanische Eigenschaft publishedVersion eissn:1878-6669 Issue 7 Welding in the World 1837-1852 Volume 68 false
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