The present work is an experimental investigation on the laser forming process of aluminum alloy and stainless-steel thin sheets. A high-power diode laser (HPDL) with a nonsymmetric spot configuration was employed at medium and low scanning rates. The tests were performed at different operating conditions: scanning rate, laser spot orientation, and laser beam power. The experimental results revealed the great influence of the laser spot orientation on the total bending angle and the harmful effect of the surface melting during heating. Spot orientation significantly affects the treated area extension during laser scanning. Employing an analytical thermo-mechanical model, a dimensionless processing map can be presented that allows the prediction of the sheet bending angle depending on the material properties and machining parameters. Dimensional terms of the processing map can be associated to efficiency terms for heat transfer and bending.
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e-mail: fabrizio.quadrini@uniroma2.it
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October 2007
Research Papers
Process-Efficiency Prediction in High Power Diode Laser Forming
L. Casamichele,
L. Casamichele
Department of Mechanical Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, Italy
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F. Quadrini,
F. Quadrini
Department of Mechanical Engineering,
e-mail: fabrizio.quadrini@uniroma2.it
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, Italy
Search for other works by this author on:
V. Tagliaferri
V. Tagliaferri
Department of Mechanical Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, Italy
Search for other works by this author on:
L. Casamichele
Department of Mechanical Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, Italy
F. Quadrini
Department of Mechanical Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, Italye-mail: fabrizio.quadrini@uniroma2.it
V. Tagliaferri
Department of Mechanical Engineering,
University of Rome “Tor Vergata,”
Via del Politecnico 1, Rome 00133, ItalyJ. Manuf. Sci. Eng. Oct 2007, 129(5): 868-873 (6 pages)
Published Online: January 31, 2007
Article history
Received:
July 13, 2006
Revised:
January 31, 2007
Citation
Casamichele, L., Quadrini, F., and Tagliaferri, V. (January 31, 2007). "Process-Efficiency Prediction in High Power Diode Laser Forming." ASME. J. Manuf. Sci. Eng. October 2007; 129(5): 868–873. https://doi.org/10.1115/1.2738124
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