Lightweighting is the buzzword of the automotive world today, and lightweighting has dramatic consequences on substrates used for car body construction today and in the future. The change in the metal mix forces adaptations and innovations in the metal pretreatment process to guarantee the expected high performance- and quality level. Hot stamped high strength steel started to gain market share in Europe, and swaps now into North America and Asia. To prevent scaling of the surfaces and to avoid any blasting process of formed parts, different surface coatings are in use. The presentations will discuss the different coatings with their pros and cons, and dives deeper into new coating technologies. Depending on the composition of these coatings, the pretreatment chemistry has to be adapted.
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