Innovative technology for fabrication of antiwear layers for forging tools
Journal Title: Tribologia - Year 2011, Vol 239, Issue 5
Abstract
Cold forging tools are known to be exposed to extremely high loads due to the high forming stresses and the strain hardening of the workpiece material. This paper deals with the study of the influence of laser texturing of hard-coated tool surfaces and micro-channels filled with solid lubricants on tool tribological behaviour in cold forging processes. The results of a study of the combination of hard coating with and solid lubricant layers for forging tools show the beneficial effect of nano- and micro-particle solid lubrication in the case of the storage of nanoparticles in the micro-reservoirs at the sliding interface. The use of nanolayered coatings (like nACVIc) seems to be more effective for areas of high contact stresses than a combination of coatings. The use of microchannels filled with MoS2 nanoparticles seems to be more effective for areas of abrasive wear.
Authors and Affiliations
Hanna Wiśniewska-Weinert, Volf Leshchynsky, Mikhail Ignatev, Jacek Borowski, Tomasz Wiśniewski
Keywords
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- EP ID EP271025
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