Numerical Simulation of Laser Forming of Aluminum Sponges: Effect of Temperature and Heat Treatments

Fabrizio Quadrini; Denise Bellisario; Daniele Ferrari; Loredana Santo; Anna Santarsiero

doi:10.4028/www.scientific.net/KEM.611-612.731

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 611-612Numerical Simulation of Laser Forming of Aluminum...

Numerical Simulation of Laser Forming of Aluminum Sponges: Effect of Temperature and Heat Treatments

Abstract:

Laser forming ofopen-cell aluminum foams can be modeled by means of 3D thermo-mechanical models but the correct evaluation of the alloy material properties is a key-factor for obtaining good predictions. In order to increase the model predictability from a quantitative point of view, further information about the material behavior under laser exposure is necessary. In this study the effect of the temperature on the mechanical properties of a commercial aluminum sponge has been evaluated in terms of yielding stress and tangent modulus. Experimental tests have been performed by compression and used to infer mechanical properties by means of a 3D FE model. The same approach has been used also to evaluate the effect of a heat treatment of the sponge on the material behavior during forming. In conclusion numerical simulation of laser heating has been used to show the effect of the laser-material interaction on the final homogeneity of processed foams.

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Periodical:

Key Engineering Materials (Volumes 611-612)

Pages:

731-738

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.611-612.731

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Online since:

May 2014

Authors:

Fabrizio Quadrini*, Denise Bellisario, Daniele Ferrari, Loredana Santo, Anna Santarsiero

Keywords:

Finite Element Method (FEM), Laser Forming, Metal Foams, Process Simulation

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* - Corresponding Author

References

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