TY - CHAP A1 - Wilden, J. A1 - Bergmann, J. P. A1 - Dolles, M. A1 - Reich, S. A1 - Fernandet, S. A1 - Goecke, Sven-Frithjof T1 - Low temperature brazing of zinc coated steel and steel/aluminium joints by setting ZnAl-alloys as brazing material T2 - In: Brazing and soldering : proceedings of the 3rd International Brazing and Soldering Conference, April 24 - 26, 2006, Crowne Plaza Riverwalk Hotel, San Antonio, Texas, USA / sponsored by ASM International, the Materials Information Society; AWS, [American Welding Society]. Ed. by John J. Stephens ... - Materials Park, Ohio: ASM Internat., 2006. - ISBN 0-87170-838-8 Y1 - 2006 SP - 32 EP - 39 ER - TY - JOUR A1 - Bergmann, J. P. A1 - Wilden, J. A1 - Reich, S. A1 - Goecke, Sven-Frithjof T1 - Methods and solutions for joining plates made from different metals using voltaic arc welding JF - In: Welding International 23 (2009) 12, pp 895-903 N2 - For some years now, the light engineering sector has been in search of welding and/or joining technologies allowing high-speed processing at low temperatures. This way, damage to galvanized coating, for example in the case of steels, could be avoided or significantly reduced. Damage to the galvanized coating represents an outwardly visible phenomenon that can have a negative impact on the component's corrosion resistance. On the other hand, from the metallurgical viewpoint, controlling heat input represents an important way to solve the problems associated with heat joining of metals with incomplete solid-state solubility. The formation of fragile intermetallic phases during cooling, for example, occurs with aluminium/steel or aluminium/titanium. The process and the correct choice of filler materials are key points for the success of the joining method. In the case of the combination of aluminium and steel, zinc represents a suitable filler material, for example for brazing. The melting temperature is around 420°C and the wettability, with regard to galvanized steel, is favoured by the zinc layer, while on the aluminium part, it is possible to avoid the use of flux, thanks to the activating action of the voltaic arc. However, the low melting and vaporization temperatures of zinc make even ‘short arc’ processing rather difficult. Only new developments in electrical sources for welding, and in particular new processes, offer the possibility of reducing the heat input by modifying the ‘short arc’ process. The difficulties described are also valid for the combination of titanium and aluminium, and are associated with the formation of phases such as Ti x A1 y . Again in this case, this paper will present a strategy for joining sheets less than 2 mm thick. In the past years, an increasing number of strategies to join zinc-coated steels can be observed. Brazing represents a profitable way to join zinc-coated steels at low temperatures, reducing or avoiding zinc evaporation. In order to completely avoid damaging zinc coating, the set of ZnAl-fìllers was already investigated for laser brazing of zinc-coated steels as well as for joining steel with aluminium. Furthermore, thanks to new developments in arc wire technology, ZnAl-electrodes can be used for MIG-brazing as well. In this case, the conventional short arc, which normally does not allow brazing with zinc wires as eruption-like evaporation occurs, is modified and controlled. The drop formation on the wire tip, the metal transfer, and the heat input can be controlled and modified very precisely, so that processing of filler material can be performed easily for thin sheets (till 0.8–1.5 mm) and at low-processing speed, below 0.3–0.4 m/min. The control of the heat input occurs due to abruptly reducing the current after short arc. The disadvantages connected with a lower heat input in the base material are a restricted wetting behaviour of the zinc pool on the base material and the low-brazing speed due to a very high cooling rate. The focus of the presented investigation is the development of strategies, in order to enhance process conditions for brazing sheets of zinc-coated steels and aluminium. Y1 - 2009 U6 - https://doi.org/10.1080/09507110902843289 SN - 0950-7116 SP - 895 EP - 903 ER - TY - CHAP A1 - Wilden, J. A1 - Bergmann, J. P. A1 - Reich, S. A1 - Neuwöhner, P. A1 - Goecke, Sven-Frithjof T1 - Grundlegende Untersuchungen zum flussmittelfreien Löten von Leichtmetall-Material-Mix Konstruktionen T1 - Basic investigations about the flux-free soldering of multi-material-mix lightweight constructions T2 - In: Hart- und Hochtemperaturlöten und Diffusionsschweißen : Vorträge und Posterbeiträge des 8. internationalen Kolloquiums in Aachen vom 19. bis 21. Juni 2007. - Düsseldorf : DVS-Verl., 2007. - (DVS-Berichte ; 243). - ISBN 978-3-87155-799-6 Y1 - 2007 SP - 176 EP - 182 ER - TY - CHAP A1 - Wilden, J. A1 - Bergmann, J. P. A1 - Reich, S. A1 - Neuwöhner, P. A1 - Goecke, Sven-Frithjof T1 - Basic investigations about the flux-free soldering of multi-material-mix lightweight constructions T1 - Grundlegende Untersuchungen zum flussmittelfreien Löten von Leichtmetall-Material-Mix Konstruktionen T2 - In: Hart- und Hochtemperaturlöten und Diffusionsschweißen : Vorträge und Posterbeiträge des 8. Internationalen Kolloquiums in Aachen vom 19. bis 21. Juni 2007. - Als Ms. gedr. - Düsseldorf : DVS-Verl., 2007. - (DVS-Berichte ; 243). - ISBN 978-3-87155-799-6 Y1 - 2007 SP - 176 EP - 182 ER - TY - CHAP A1 - Wilden, J. A1 - Bergmann, J. P. A1 - Reich, S. A1 - Veron, F. A1 - Möller, L. A1 - Goecke, Sven-Frithjof T1 - Methoden und Strategien zum flussmittelfreien Fügen von Mischverbindungen durch Kombination der geregelten Lichtbogentechnik und der Lasertechnik T2 - In: Schweißen und Schneiden 2006 : Vorträge der gleichnamigen Großen Schweißtechnischen Tagung in Aachen vom 20. bis 22. September 2006 / Veranst.: DVS - Deutscher Verband für Schweißen und Verwandte Verfahren e.V., Düsseldorf. - Düsseldorf : Verl. für Schweißen und Verwandte Verfahren, DVS-Verl., 2006. - (Deutscher Verband für Schweißen und Verwandte Verfahren: DVS-Berichte ; Bd. 240). - ISBN 3-87155-699-8 ; 978-3-87155-699-9 Y1 - 2006 SP - 120 EP - 125 ER - TY - JOUR A1 - Wilden, J. A1 - Jahn, S. A1 - Melahin, N. A1 - Rehfeldt, L. A1 - Luhn, T. A1 - Goecke, Sven-Frithjof A1 - Schmid, E. A1 - Berger, U. T1 - Brazing as the key to resource-efficient and energy-efficient joining in the product life cycle JF - In: Welding and cutting (2010) 5, 301-312 Y1 - 2010 SN - 1612-3433 SP - 301 EP - 312 ER - TY - JOUR A1 - Wilden, J. A1 - Jahn, S. A1 - Milahin, N. A1 - Luhn, T. A1 - Rehfeldt, L. A1 - Goecke, Sven-Frithjof A1 - Schmid, E. A1 - Berger, U. T1 - Perspektiven und Visionen zum Schweissen moderner Stahlwerkstoffe JF - In: Stahl und Eisen 130 (2010) 10, S. 71-75 Y1 - 2010 SN - 0340-4803 SP - 71 EP - 75 ER - TY - CHAP A1 - Goecke, Sven-Frithjof A1 - Wilden, J. A1 - Jahn, S. A1 - Reich, S. A1 - Fedtke, A. A1 - Vollertsen, F. A1 - Thomy, C. T1 - Technologiekette zum Produzieren, Reparieren und Recyceln von Produkten in Material-Mix-Bauweise - PROREMIX T2 - In: Die Verbindungs-Spezialisten 2008 : Vorträge und Posterbeiträge der Veranstaltung in Dresden vom 17. bis 19. September 2008 / Veranst.: DVS - Deutscher Verband für Schweißen und Verwandte Verfahren e.V., Düsseldorf. - Düsseldorf : Verl. für Schweißen und Verwandte Verfahren, DVS-Verl., 2008. - (DVS-Berichte ; 250). - ISBN 978-3-87155-256-4 Y1 - 2008 SP - 375 EP - 378 ER - TY - CHAP A1 - Wilden, J. A1 - Jahn, S. A1 - Sabelfeld, N. A1 - Rehfeldt, L. A1 - Luhn, T. A1 - Goecke, Sven-Frithjof A1 - Schmid, E. A1 - Berger, U. T1 - Löten als Schlüssel zum ressourcen - und energieeffizienten Fügen im Produktlebenszyklus T1 - Soldering as a key to resource- and energy-efficient adding in the product life cycle T2 - In: Hart- und Hochtemperaturlöten und Diffusionsschweißen : LÖT 2010; Vorträge und Posterbeiträge des 9. internationalen Kolloquiums in Aachen vom 15. bis 17. Juni 2010 = Brazing, high temperature brazing and diffusion bonding / Gemeinschaftsveranstaltung von DVS - Deutscher Verband für Schweißen und Verwandte Verfahren e.V., Düsseldorf ... - Düsseldorf : DVS Media, 2010. - (DVS-Berichte ; 263) - ISBN 978-3-87155-589-3 ; 3-87155-589-4 Y1 - 2010 SP - 159 EP - 163 ER - TY - CHAP A1 - Wilden, J. A1 - Jahn, S. A1 - Reich, S. A1 - Goecke, Sven-Frithjof T1 - Technologien zum flussmittelfreien Fügen von Leichtmetall-Material-Mix- Konstruktionen T2 - In: Schweißtechnik und Fügetechnik - Schlüsseltechnologien der Zukunft = Welding and joining - key technologies for the future / 10. Internationales Aachener Schweißtechnik-Kolloquium, 24. - 25.10.2007. Hrsg.: Uwe Reisgen. Red. Bearb.: Konrad Willms ; Nikolaus Wagner. [Veranst. ISF Aachen ...]. - Aachen : Shaker, 2007. - (Aachener Berichte Fügetechnik ; 2007,1). - 3-8322-6644-5, 978-3-8322-6644-8 Y1 - 2007 SP - 491 EP - 500 ER - TY - CHAP A1 - Wilden, J. A1 - Jahn, S. A1 - Reich, S. A1 - Goecke, Sven-Frithjof T1 - Technologien zum flussmittelfreien Fügen von Leichtmetall-Material-Mix-Konstruktionen T1 - Methods for the flux-free joining of muiti-material-mix lightweight constructions T2 - In: Schweißtechnik und Fügetechnik - Schlüsseltechnologien der Zukunft = Welding and joining - key technologies for the future / 10. Internationales Aachener Schweißtechnik-Kolloquium, 24. - 25.10.2007. Hrsg.: Uwe Reisgen. Red. Bearb.: Konrad Willms ; Nikolaus Wagner. [Veranst. ISF Aachen ...]. - Aachen : Shaker, 2007. - ISBN 978-3-8322-6644-8 ; 3-8322-6644-5 Y1 - 2007 SP - 491 EP - 502 ER -