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Surface functionalization of forming using direct laser interference patterning for dry forming applications

: Kunze, Tim; Böttcher, Falko; Lang, Valentin; Gärtner, Anne; Lasagni, Andrés-Fabián

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Dry metal forming open access journal 1 (2015), pp.108-112
Deutsche Forschungsgemeinschaft DFG
LA2513 5-1
Makro- und Mikrostrukturierung von Tiefziehwerkzeugen zur Trockenumformung
Journal Article, Electronic Publication
Fraunhofer IWS ()
dry forming; micro structuring; ta-C coating; direct laser interference patterning

Forming processes typically require the use of lubricants to reduce friction and wear of the tools as well as to protect the semi-finished products. Since cleaning of forming products is costly and time-expensive, there is a need to eliminate the use of lubricants. An approach to improve the performance of tools in dry forming is by producing micro structured tools or even to structure the semi-finished products. This study presents an overview about the potential application of direct laser interference patterning for the functionalization of surfaces involved in dry metal forming processes.