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Proceedings Paper

Formation of tribological structures by laser ablation
Author(s): Niels Schilling; Mike Paschke; Sami T. Hendow; Udo Klotzbach
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Paper Abstract

Many technical applications can benefit from the use of tribological structures in minimizing abrasive material wear and energy consumption without the integration of additional materials in a working assembly. Especially in lubricated friction systems, the tribological character can be significantly improved through the addition of oriented and repetitive microstructure. In this study, experimental tests are discussed for a small range of structure dimensions to verify the effect of optimizing the tribological contact performance. A nanosecond pulsed fiber laser is used to create various test structures with different sizes and form. The quality of the fabricated surface pattern, particularly form correctness, feathering and material modification effects of the ablated area is characterized and optimized. The influence of pulse duration, pulse energy and pulse delay using normal pulsing is presented and compared to various burst modes.

Paper Details

Date Published: 15 February 2012
PDF: 10 pages
Proc. SPIE 8243, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XVII, 82430X (15 February 2012); doi: 10.1117/12.908940
Show Author Affiliations
Niels Schilling, Fraunhofer IWS Dresden (Germany)
Mike Paschke, Fraunhofer IWS Dresden (Germany)
Sami T. Hendow, Multiwave Photonics (Portugal)
Udo Klotzbach, Fraunhofer IWS Dresden (Germany)

Published in SPIE Proceedings Vol. 8243:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XVII
Guido Hennig; Xianfan Xu; Bo Gu; Yoshiki Nakata, Editor(s)

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