Browse Publications Technical Papers 2016-01-0537
2016-04-05

MagiZinc - The New High Performance Coating for Steel in the BIW and Closures 2016-01-0537

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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