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Proceedings Paper

An exhaustive model for the laser hardening of hypo eutectoid steel
Author(s): Alessandro Fortunato; Leonardo Orazi; Gabriele Cuccolini; Alessandro Ascari
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Paper Abstract

This article presents an exhaustive mathematical model for the simulation of hypo-eutectoid carbon steel trans- formations during laser hardening. The proposed model takes into consideration all the the phenomena involved in the process with particular attention to implementing easy mathematical formulas in order to optimize the trade-o between the accuracy of the predicted results and the computational times. The proposed model calculates the 3D thermal eld occurring into the workpiece and predicts the microstructural evolution of the target material exploiting an original approach based on the de nition of thermodynamic thresholds. Several parameters and phenomena are taken into consideration in order to accurately simulate the process: laser beam characteristics, scanning strategy of the target and tempering e ect due to mutually interacting beam trajecto- ries.

Paper Details

Date Published: 22 February 2013
PDF: 14 pages
Proc. SPIE 8603, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II, 86030F (22 February 2013); doi: 10.1117/12.2007389
Show Author Affiliations
Alessandro Fortunato, Univ. degli Studi di Bologna (Italy)
Leonardo Orazi, Univ. degli Studi di Modena e Reggio Emilia (Italy)
Gabriele Cuccolini, Univ. degli Studi di Modena e Reggio Emilia (Italy)
Alessandro Ascari, Univ. degli Studi di Bologna (Italy)


Published in SPIE Proceedings Vol. 8603:
High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II
Friedhelm Dorsch, Editor(s)

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