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LASER SURFACE HARDNESS

C. Oros1,*

Affiliation

  1. Physics Department, “Valahia” University of Targoviste, Romania

Abstract

The experimental dependence of surface hardness on Nd:YAG laser parameters (laser intensity, laser pulse duration, number of laser shots and laser spot diameter) for aluminum, titanium, nickel, cooper and two kind of steel (21CrMoV57 and 40C130) targets is given. It is show that the target surface hardness increases with laser intensity, with number of laser shots and laser pulse duration. Also, the target surface hardness decreases when the laser spot diameter increases. From these experiments result that the laser hardness is rather a function on laser surface energy density than laser energy..

Keywords

Surface hardness, Laser surface energy density.

Submitted at: Jan. 26, 2004
Accepted at: March 15, 2004

Citation

C. Oros, LASER SURFACE HARDNESS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 1, pp. 325-328 (2004)