Laser hardening process simulation for mechanical parts

Giovanni Tani; Leonardo Orazi; A. Fortunato; G. Campana; G. Cuccolini

doi:10.1117/12.700345

14 February 2007 Laser hardening process simulation for mechanical parts

Giovanni Tani, Leonardo Orazi, A. Fortunato, G. Campana, G. Cuccolini

Proceedings Volume 6454, High Energy/Average Power Lasers and Intense Beam Applications; 645404 (2007) https://doi.org/10.1117/12.700345
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

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.

Citation Download Citation

Giovanni Tani, Leonardo Orazi, A. Fortunato, G. Campana, and G. Cuccolini "Laser hardening process simulation for mechanical parts", Proc. SPIE 6454, High Energy/Average Power Lasers and Intense Beam Applications, 645404 (14 February 2007); https://doi.org/10.1117/12.700345

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