Experimental Investigation on Process Parameters Effects in Laser Forming of Closed-cell Aluminium Foam Sheets

علوم کاربردی و محاسباتی در مکانیک

Article 3, Volume 26, Issue 2 - Serial Number 12, September 2015, Pages 33-44   

Document Type: Original Article

DOI: 10.22067/fum-mech.v26i2.38805

Authors

Amir Hossein Roohi¹; Hassan Moslemi Naeini^{* 1}; Mohammad Hoseinpour Gollo²; Mehdi Soltanpour³

¹Tarbiat Modares University

²Shahid Rajaee Teacher Training University

³Imam Khomeini International University

Abstract

In a laser forming process, the temperature gradient across the sheet thickness produces the final bending angle. Metallic foams cannot be formed by any mechanical processes due to occurrence of failure during deformation. In this article, closed-cell aluminium foams are irradiated by a laser beam. Experiments are carried out by varying laser power, scan velocity and the number of scan passes to specify their effect on the bending angle. Design of experiment with the response surface methodology and analysis of variance are utilized to analyze parameter effects. At last, an equation is derived for prediction of bending angle.

Keywords

Laser forming proces; Closed-cell aluminium foam; Design of Experiment

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