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Proceedings Paper

Laser hardening process simulation for mechanical parts
Author(s): Giovanni Tani; Leonardo Orazi; A. Fortunato; G. Campana; G. Cuccolini
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Paper Abstract

In this paper a numerical simulation of laser hardening process is presented. The Finite Difference Method (FDM) was used to solve the heat transfer and the carbon diffusion equations for a defined workpiece geometry. The model is able to predict the thermal cycle into the target material, the phase transformations and the resulting micro-structures according to the laser parameters, the workpiece dimensions and the physical properties of the workpiece. The effects of the overlapping tracks of the laser beam on the resulting micro-structures is also considered. The initial workpiece micro-structure is taken into account in the simulation by a digitized photomicrograph of the ferrite perlite distribution before the thermal cycle. Experimental tests were realized on a C43 plate and the good agreement between the theoretical and experimental results is shown.

Paper Details

Date Published: 14 February 2007
PDF: 12 pages
Proc. SPIE 6454, High Energy/Average Power Lasers and Intense Beam Applications, 645404 (14 February 2007); doi: 10.1117/12.700345
Show Author Affiliations
Giovanni Tani, Univ. of Bologna (Italy)
Leonardo Orazi, Univ. degli Studi di Modena e Reggio Emilia (Italy)
A. Fortunato, Univ. of Bologna (Italy)
G. Campana, Univ. of Bologna (Italy)
G. Cuccolini, Univ. of Bologna (Italy)

Published in SPIE Proceedings Vol. 6454:
High Energy/Average Power Lasers and Intense Beam Applications
Steven J. Davis; Michael C. Heaven; J. Thomas Schriempf, Editor(s)

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