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13 September 2002 High-speed drilling of metals with a long-pulse XeCl excimer laser
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Proceedings Volume 4760, High-Power Laser Ablation IV; (2002)
Event: International Symposium on High-Power Laser Ablation 2002, 2002, Taos, New Mexico, United States
Studies of the influence of pulse length on material processing with different lasers have shown that a long pulse is beneficial for processing speed. In this paper a technique of pulse length variation is used in which the pulse length is the only varied parameter. Pulses between 5 and 150 ns length are sliced out of the 175 ns pulse of a long pulse excimer laser. The beam quality for each sliced pulse length is similar. In this paper the results are shown of hole drilling experiments in 125 micron aluminium foil with pulses of 10 and 100 ns length. The influence of the pulse length on material processing is discussed in relationship with equal energy and equal power density of the pulses. This study shows that in both cases long pulses remove more material than short pulses.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aart Schoonderbeek, Cornelis A. Biesheuvel, Ramon M. Hofstra, Klaus-Jochen Boller, and Johan Meijer "High-speed drilling of metals with a long-pulse XeCl excimer laser", Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002);

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