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Proceedings Paper

Metal micro drilling combining high power femtosecond laser and trepanning head
Author(s): R. Kling; M. Dijoux; L. Romoli; F. Tantussi; J. Sanabria; E. Mottay
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Paper Abstract

Trepanning heads are well known to be efficient in high aspect drilling and to provide a precise control of the hole geometry. Secondly, femtosecond lasers enable to minimize the heat effects and the recast layer on sidewalls but are typically used on thin sheet. The combination of both present a high potential for industrial applications such as injector or cooling holes where the bore sidewall topology has a major influence on the dynamics of the gas flow. In this paper we present results using this combination. The effect of pulse energy, repetition rate and revolution speed of the head on both geometry and roughness are discussed. The quality of the sidewall is checked by roughness measurement and by metallographic analysis (SEM; chemical etching, micro hardness).

Paper Details

Date Published: 15 March 2013
PDF: 14 pages
Proc. SPIE 8608, Laser-based Micro- and Nanopackaging and Assembly VII, 86080F (15 March 2013); doi: 10.1117/12.2002083
Show Author Affiliations
R. Kling, ALPhANOV (France)
M. Dijoux, ALPhANOV (France)
L. Romoli, Univ. degli Studi di Pisa (Italy)
F. Tantussi, Univ. degli Studi di Pisa (Italy)
J. Sanabria, Amplitude Systèmes (France)
E. Mottay, Amplitude Systèmes (France)


Published in SPIE Proceedings Vol. 8608:
Laser-based Micro- and Nanopackaging and Assembly VII
Udo Klotzbach; Yongfeng Lu; Kunihiko Washio, Editor(s)

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