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Laser interference patterned ta-C-coated dry forming tools

: Jähnig, Theresa; Lasagni, Andrés-Fabián


Industrial lubrication and tribology 72 (2020), No.8, pp.1001-1005
ISSN: 0036-8792
Deutsche Forschungsgemeinschaft DFG
SPP 1676; F-003661-553-71A-1132104
Dry Metal Forming - Sustainable Production through Dry Processing in Metal Forming
Journal Article
Fraunhofer IWS ()
deep drawing; dry forming; ta-C coating; direct laser interference pattering; dry friction; DLC coating

This study aims to introduce a strategy that permits well-defined contact areas in forming tools for improving both wear and friction properties by a selective laser treatment of a hydrogen-free diamond-like carbon layer (DLC), for substituting lubrication in forming processes. The need of lubricant substitution in forming processes is given because, besides the positive technological aspects, lubrication leads to numerous negative economic and ecological effects such as lubricant appliance and removal costs as well as its disposal.