Industrial Applications of Laser Engraving: Influence of the Process Parameters on Machined Surface Quality

Authors: F.Agalianos, S.Patelis , P. Kyratsis, E. Maravelakis, E.Vasarmidis, A.Antoniadis

Abstract:

Laser engraving is a manufacturing method for those applications where previously Electrical Discharge Machining (EDM) was the only choice. Laser engraving technology removes material layer-by-layer and the thickness of layers is usually in the range of few microns. The aim of the present work is to investigate the influence of the process parameters on the surface quality when machined by laser engraving. The examined parameters were: the pulse frequency, the beam speed and the layer thickness. The surface quality was determined by the surface roughness for every set of parameters. Experimental results on Al7075 material showed that the surface roughness strictly depends on the process parameters used.

Keywords: Laser engraving, Al7075, Yb: YAG laser, laser process parameters, material roughness.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1076402

References:

[1] B. N. Dahotre and S.P. Harimkar, Laser Fabrication and Machining of Materials. Springer, 2008.
[2] S. Genna, C. Leone, V. Lopresto, L.Santo, and F. Trovalusci, "Study of fibre laser machining on C45 steel: influences of process parameters on material removal rate and roughness", Int. J Mater Form, Vol 3, pp.1115-1118, 2010.
[3] J. Qi, K.L.Wang and Y.N. Zhu, "A study on the Laser marking process of stainless steel", Journal of Materials Technology, Vol. 139, pp. 273-276, 2003.
[4] C. Leone, V. Lopresto and I. De Iorio, "Wood engraving by Qswitched diode-pumped frequency-doubled Nd:YAG green Laser", Optics and Laser in Engineering, Vol. 47, pp. 161-168, 2009.
[5] C. Leone, S. Genna, G. Caprino and I. De Iorio, "AISI 304 stainless steel marking by a Q-switched diode pumped Nd:YAG Laser", Journal of Materials Processing Technology, Vol. 210, pp. 1297- 1303, 2010.