%0 Conference Paper %1 noauthororeditor %A Holder, Daniel %A Hetzel, Florian %A Weber, Rudolf %A Graf, Thomas %D 2022 %J Procedia CIRP %K %P 715-720 %T Surface treatment of additively manufactured metal parts for any arbitrary wetting state between superhydrophilic and superhydrophobic %V 111 %X Light-weight and function-oriented, complex metal parts can be generated by additive manufacturing processes. However, the characteristic, rough surface limits the applicability of these parts when a certain wettability is required. From literature it is known that the wettability mainly depends on the surface topography and surface chemistry. In our work, three consecutive steps were performed to modify the surface topography and surface chemistry of LPBF-generated parts made from Ti6Al4V: (1) Mechanical sanding and polishing smoothed the surface and removed powder particles from the surface. (2) Surface structuring with ultrashort laser pulses generated fine ripples or rougher spikes depending on the processing parameters. (3) Cleaning with ethanol or hexane and subsequent storage in air or butane modified the surface chemistry. As a result, durable wetting states with arbitrary contact angles between 0° (superhydrophilic) and 150° (superhydrophobic) were achieved for deionized water on LPBF-generated parts made from Ti6Al4V.

@inproceedings{noauthororeditor, abstract = {Light-weight and function-oriented, complex metal parts can be generated by additive manufacturing processes. However, the characteristic, rough surface limits the applicability of these parts when a certain wettability is required. From literature it is known that the wettability mainly depends on the surface topography and surface chemistry. In our work, three consecutive steps were performed to modify the surface topography and surface chemistry of LPBF-generated parts made from Ti6Al4V: (1) Mechanical sanding and polishing smoothed the surface and removed powder particles from the surface. (2) Surface structuring with ultrashort laser pulses generated fine ripples or rougher spikes depending on the processing parameters. (3) Cleaning with ethanol or hexane and subsequent storage in air or butane modified the surface chemistry. As a result, durable wetting states with arbitrary contact angles between 0° (superhydrophilic) and 150° (superhydrophobic) were achieved for deionized water on LPBF-generated parts made from Ti6Al4V. }, added-at = {2023-03-28T16:54:29.000+0200}, author = {Holder, Daniel and Hetzel, Florian and Weber, Rudolf and Graf, Thomas}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/20cb4e9c495e1966b6f71f442f1f1fc3c/danielholder}, interhash = {5a9949842023ce1e9e53b639508b6b84}, intrahash = {0cb4e9c495e1966b6f71f442f1f1fc3c}, journal = {Procedia CIRP}, keywords = {}, pages = {715-720}, timestamp = {2023-03-28T16:55:10.000+0200}, title = {Surface treatment of additively manufactured metal parts for any arbitrary wetting state between superhydrophilic and superhydrophobic}, volume = 111, year = 2022 }