Stroncoat belongs to a new family of zinc magnesium coatings developed in Europe with comparable phase composition and properties. Their range in composition goes from 1wt% for Mg and Al, respectively, to 3wt% Mg and 3,7wt% Al, the remainder being zinc, whereas Stroncoat as a typical member contains 1,6wt% Mg and Al, respectively. All of these coatings have been proven to yield high corrosion protection, especially under salt rich lab test conditions. This has put the question, whether the possible advantages can be saved throughout the process chain of building the body-in-white. Several key aspects of forming and joining properties of Stroncoat were benchmarked with established zinc coatings in state-of-the-art lab tests. Particular interest was put on resistance spot weldability, adhesive joint strength in aged and unaged condition as well as on zinc abrasion and galling during deep drawing. Stroncoat was found to be compatible with standard processes, bringing additional benefit to car manufacturing. Many properties can be characterized in the lab, while some may only be understood during a production trial. Very often there is a relevant interdependency between the coated sheet steel and the individual manufacturing process.
Performance of a ZM-coating with 1.6% Mg and 1.6% Al in the autobody process chain
Performance einer ZM-Beschichtung mit 1.6% Mg und 1.6% Al in der Prozesskette zur Herstellung von Karosserien
2014
8 Seiten, 8 Bilder, 7 Quellen
Conference paper
English
metallischer Überzug , Beschichten mit Metall , chemische Zusammensetzung , Korrosionsschutz , Karosseriebauteil , Schmelztauchen , Neuentwicklung , Klebeverbindung , Punktschweißen , Abrasion , Umformbarkeit , Schweißverbindung , Zugscherfestigkeit , Schälfestigkeit , Schlagfestigkeit , Härte , Anwendung im Fahrzeugbau , Herstellung von Halbzeugen und Bauteilen , Gebrauchseigenschaft , Teilefertigung
Variation in autobody adhesive curing process
Automotive engineering | 1999
|Variation in Autobody Adhesive Curing Process
SAE Technical Papers | 1999
|Dynamic denting of autobody panels
Automotive engineering | 1976
|Development of autobody sheet materials for crash performance
British Library Conference Proceedings | 2000
|Technoeconomic evaluation of autobody materials
Tema Archive | 1997
|