Process parameters selection for laser polishing DF2 (AISI O1) by Nd : YAG pulsed laser using orthogonal design

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1009-1023
Journal / PublicationInternational Journal of Advanced Manufacturing Technology
Volume59
Issue number9-12
Publication statusPublished - Apr 2012

Abstract

Mechanisms of laser polishing metals in a continuous scanning mode, as envisaged and analyzed in this paper, are rather complex, and experimental optimization of laser polishing metallic material is very timeconsuming and difficult. Aiming at shortening the experimental time in achieving a better surface finishing of DF2 (AISI 01) tool steel by pulse Nd:YAG laser, we used the orthogonal experimental design for selecting the laser operational parameters. The results showed that the orthogonal design (OD) allowed the optimum technological parameters for the laser polishing to be obtained quickly and effectively. According to the OD analysis and experimental data, the attainable optimum laser smoothening/polishing parameters from this study are pulse energy (P)=1 J, feed rate=300-400 mm/min, pulse duration=3 ms, and pulse frequency (f)=20-25 Hz. The work in this paper demonstrates the relative superiority of orthogonal design in saving experimental times and providing good laser polishing surface in surface texturing and the smoothening process. © Springer-Verlag London Limited 2011.

Research Area(s)

  • DF2 (AISI-O1), Laser polishing, Nd:YAG laser, Orthogonal design, Surface topography

Citation Format(s)

Process parameters selection for laser polishing DF2 (AISI O1) by Nd : YAG pulsed laser using orthogonal design. / Guo, Wei; Hua, Meng; Tse, Peter Wai-Tat; Mok, Albert Chiu Kam.

In: International Journal of Advanced Manufacturing Technology, Vol. 59, No. 9-12, 04.2012, p. 1009-1023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review