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Dear Sir or Madam,
Today we would like to draw your attention to upcoming events and seminars and inform you about newly published FOSTA final reports from the focal areas of mobility, construction as well as plant and mechanical engineering. You can find these and all other FOSTA reports in the stahldaten.de store.
We wish you interesting reading.
Your FOSTA team
| P 918 – Proof of equivalence of novel corrosion protection coatings for steel crash barriers
Road restraint systems are crucial for traffic safety on roads. Of course, the longevity of products is fundamental to maintain the safety function, therefore a lifetime of at least 25 years is being demanded. For steel guardrails the corrosion protection plays a major role with regard to that. Following the specifications given in Germany by the Technischen Lieferbedingungen für Stahlschutzplanken (TL-SP 99), these parts shall be manufactured from steel by profiling and subsequent hot dip galvanization, according to DIN EN ISO 1461.
Using new corrosion protection coatings according to DIN EN 10346 (continuously hot-dip coated steel products) or DIN 50997 (Zinc-aluminium coatings applied by thin film galvanizing) would offer a number of immediate advantages due to the different coatings or production process (e.g. sustainability advantages, economic advantages and safety-related advantages).
As part of this research project, various corrosion protection coatings for steel crash barriers were analysed and compared in terms of their equivalence.
Natural weathering in-field applications have been installed on two selected highway sections and being evaluated over a period of five years.
The results from magnet inductive coating thickness measurements after five years infield natural weathering show no significant reduction for none of the different corrosion protection coatings. more information
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| P 1291 – Workpiece-side impact on and modelling of tribological conditions within hot stamping
The occurrence of friction and wear represents a current and pressing challenge in the hot stamping process, as the use of lubricants is not possible due to elevated process temperatures > 850 °C. The tribological conditions in the contact zone between the tool and workpiece are a critical component in the process, which has a significant influence on both the tool life and the quality of the final product. While the previous project P1228 “Influence of tool-side tribological conditions on hot stamping” investigated the factors influencing the hot stamping process on the tool side, previous esearch work has shown that the coating used on the workpiece side has a significant influence on the friction and wear mechanisms that occur.
The objective of the research project is to determine functional correlations between austenitizing parameters and coating formation as well as the tribological application behavior of coating materials during press hardening. By understanding the interrelationships, measures will be determined which increase the overall lifetime of hot stamping tools and thus the economic efficiency of the process. more information
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