MagiZinc - The New High Performance Coating for Steel in the BIW and Closures

Paper #:
  • 2016-01-0537

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-0537
Citation:
Van Schaik, M., Dane, C., and Berkhout, B., "MagiZinc - The New High Performance Coating for Steel in the BIW and Closures," SAE Technical Paper 2016-01-0537, 2016, doi:10.4271/2016-01-0537.
Pages:
7
Abstract:
In recent years there is an increasing demand for safer, more fuel efficient and more durable vehicles while reducing cost of ownership. To meet these demands, a new generation of zinc-magnesium alloyed hot dip galvanized steel has been developed. The product has recently been introduced for exposed panels. The innovative zinc-magnesium alloyed coating of this steel increases corrosion protection, allowing for thinner coating layers and therefore a potential for lighter parts. More important the properties of this new coating improve production performance by reducing tool pollution and galling behavior during processing in the press shop.This new steel product allows OEMs to meet the expectations of today’s automotive market. When taking into account cost critical performance in the press shop, the zinc-magnesium alloyed coating provides a clear advantage over conventional coatings, offering up to a 30% reduction in tool pollution. This improvement means that the dies do not need to be cleaned so often, leading to reduced downtime. This effect is particularly strong in the case of outer body panels, leading to a significantly higher yield of production runs without failures, lowering the total processing costs.The paper will discuss the details on both the material development as well as quantify the reduction in cost of ownership.
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