Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2759

Full Length Research Paper

Experimental analyses of bending angle by a pulsed Nd:YAG laser in sheet metal forming process

M. Hoseinpour Gollo1*, H. Moslemi Naeini2, G. H. Payganeh3, S. Ding4 and S. M. Mahdavian4
1Department of Mechanical Engineering, Faculty of Engineering, University of Mohaghegh Ardabili P. O. Box 179, Ardabil, Iran. 2Department of Mechanical Engineering, Faculty of Engineering, Tarbiat Modares University, P. O. Box 14115/143, Tehran, Iran. 3Department of Material Engineering, Shahid Rajaaee Teacher Training University, 16785-163, Tehran, Iran. 4School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Bundoora, Victoria, Australia.
Email: [email protected]

  •  Accepted: 29 August 2011
  •  Published: 23 January 2012


The process of laser bending requires numerous experiments to pinpoint parameters that produce the highest bending angle of sheet metals. The effects of laser power, beam diameter, scan velocity, pass number, pulse duration, sheet metal thickness and proposed parameter for material properties on bending angle were investigated. The Taguchi method and analysis of variance (ANOVA) were applied to find out significant parameters in laser bending. An equation through regression analysis was introduced to predict the bending angle with respect to these parameters. The optimum laser bending angle was also determined by using signal-to-noise (S/N) ratio method.


Key words: Design of experiments, laser, analysis of variance, laser bending.