Laser Drilling of Natural Stones


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Following previous work focused on the laser processing of natural stones, we present in this paper the results of the study carried out to verify the feasibility of the lasers to drill slate tiles and granite slabs. The two types of laser equipments most used in the industry (CO2 and Nd:YAG) have been used to fulfil a comparative study. The influence of different parameters involved in the process, such as, average power, stand-off distance, and assist gas pressure, have been studied to characterise the drilled holes size and geometry. Results from the different tests show that it is possible to obtain holes according to the required dimensions at reasonable powers ( i.e. no more than 400 W for the Nd:YAG and 1 kW for the CO2 laser). Holes up to 2 mm can be achieved in a very reduced time without breaking of the stone plates. The overall results show that the laser drilling technique could be an alternative to mechanical drilling of plates of natural stones to be used in ventilated façades or for roof fixation.



Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho




R. Soto et al., "Laser Drilling of Natural Stones", Materials Science Forum, Vols. 514-516, pp. 734-738, 2006

Online since:

May 2006




[1] E. Sarachu ed. Natural Stones Directory, Roc Maquina, S.A., Bilbao, Spain (2003).

[2] J. L. Menéndez Seigas Arquitectura y tecnología de la colocación de pizarra en cubiertas. Peymar Artes Gráficas, S. L. O Barco (Ourense), Spain. (1993) pp.18-20.

[3] O.D.D. Soares and M. Pérez-Amor (ed. ), Applied Laser Tooling, Martinus Nijhoff Publishers (Dordrecht), (1987).

[4] J.F. Ready, D.F. Farson (ed. ) LIA handbook of laser materials processing, Laser Institute of America, Magnolia Publishing, Inc. (Orlando, FL), (2001).

[5] M. Boutinguiza, J. Pou, F. Lusquiños, F. Quintero, R. Soto, M. Pérez-Amor, K. Watkins, W. M. Steen. Optics and Lasers in Engineering 37 (2002), pp.15-25.


[6] M. Boutinguiza, J. Pou, F. Lusquiños, R. Soto, M. Pérez-Amor and K. Watkins. J. Laser Appl., 14 (2002), pp.9-12.

[7] F. Lusquiños, J. Pou, R. Soto and M. Pérez-Amor. Journal of Laser Applications 9 (1997), pp.211-214.

[8] A. Görür, C. Çiftlikli and B.S. Yilbas. Optics and Lasers in Engineering 18 (1993) pp.349-369.

[9] A. Ivarson, J. Powell, J. Kamalu and C. Magnuson. Journal of Materials Processing Technology. 40 (1994) pp.359-374.

[10] M. Larosi, F. Lusquiños, J. Pou, R. Soto, M. Pérez-Amor. Rev. Metal. Madrid, 34 (1998) 194196.

[11] M. Boutinguiza, J. Pou, F. Lusquiños, F. Quintero, R. Soto, M. Pérez-Amor, K. Watkins and W.M. Steen. Journal of Materials Processing Technology 159 (2005) 83-90.