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Proceedings Paper

Ultrafast pulse lasers jump to macro applications
Author(s): Martin Griebel; Walter Lutze; Torsten Scheller
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Paper Abstract

Ultrafast Lasers have been proven for several micro applications, e.g. stent cutting, for many years. Within its development of applications Jenoptik has started to use ultrafast lasers in macro applications in the automotive industry. The JenLas D2.fs-lasers with power output control via AOM is an ideal tool for closed loop controlled material processing. Jenoptik enhanced his well established sensor controlled laser weakening process for airbag covers to a new level. The patented process enables new materials using this kind of technology. One of the most sensitive cover materials is genuine leather. As a natural product it is extremely inhomogeneous and sensitive for any type of thermal load. The combination of femtosecond pulse ablation and closed loop control by multiple sensor array opens the door to a new quality level of defined weakening. Due to the fact, that the beam is directed by scanning equipment the process can be split in multiple cycles additionally reducing the local energy input. The development used the 5W model as well as the latest 10W release of JenLas D2.fs and achieved amazing processing speeds which directly fulfilled the requirements of the automotive industry. Having in mind that the average cycle time of automotive processes is about 60s, trials had been done of processing weakening lines in genuine leather of 1.2mm thickness. Parameters had been about 15 cycles with 300mm/s respectively resulting in an average speed of 20mm/s and a cycle time even below 60s. First samples had already given into functional and aging tests and passed successfully.

Paper Details

Date Published: 9 March 2016
PDF: 8 pages
Proc. SPIE 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI, 974014 (9 March 2016); doi: 10.1117/12.2214693
Show Author Affiliations
Martin Griebel, JENOPTIK Automatisierungstechnik GmbH (Germany)
Walter Lutze, JENOPTIK Automatisierungstechnik GmbH (Germany)
Torsten Scheller, JENOPTIK Automatisierungstechnik GmbH (Germany)

Published in SPIE Proceedings Vol. 9740:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI
Alexander Heisterkamp; Peter R. Herman; Michel Meunier; Stefan Nolte, Editor(s)

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