Laser structuring with DLIP technology of tungsten carbide with different binder content

Research output: Contribution to journalConference articleContributedpeer-review

Contributors

Abstract

In machining, tool wear is one of the main influence factors for the resulting quality of the product. Several wear mechanisms have to be addressed to prevent unwanted deterioration of the tool integrity. For aluminium alloys, adhesion of the workpiece material on the cutting tool is one of the most challenging wear mechanisms. Engineering surface microtopographies has been proved as a convenient strategy to tackle this issue. Particularly, the direct laser interference patterning (DLIP) technique enables the integration of periodic structures on the micrometer or sub-micrometer scale. In this study the structuring of tungsten carbide with different cobalt content is presented. The interference of two laser beams leads to periodic line-like structures with a spatial period of 5.5 µm. A maximum structure depth of 2.2 µm is reached by controlling the processing parameters. Moreover, the wettability of the structured samples was analyzed by contact angle measurements with selected cooling lubricants, revealing a hydrophilic behavior with a decreased contact angle of 10°. This work gives an insight into the possibilities of structuring tungsten carbide materials with a picosecond laser source in combination with an innovative beam shaping setup from the point of view of an analysis to explore the formation of structured surfaces and their wetting behavior with cooling lubricants.

Details

Original languageEnglish
Pages (from-to)601-604
Number of pages4
JournalProcedia CIRP
Volume111
Publication statusPublished - 2022
Peer-reviewedYes

Conference

Title12th CIRP Conference on Photonic Technologies
Abbreviated titleLANE 2022
Conference number12
Duration4 - 8 September 2022
LocationStadthalle Fürth
CityFürth
CountryGermany

External IDs

ORCID /0000-0003-4333-4636/work/196675362

Keywords

Keywords

  • cutting tool, DLIP, Laser structuring, Surface modification, tungsten carbide

Library keywords