Numéro
J. Phys. Colloques
Volume 48, Numéro C7, Décembre 1987
1st International Laser M2P Conference
Page(s) C7-69 - C7-75
DOI https://doi.org/10.1051/jphyscol:1987711
1st International Laser M2P Conference

J. Phys. Colloques 48 (1987) C7-69-C7-75

DOI: 10.1051/jphyscol:1987711

AN ANALYTICAL MODEL OF HEAT FLUX IN LASER SURFACE TREATMENT

P. MAGNIN and H. MAYER

Ecole Polytechnique Fédérale de Lausanne, CTML-DMX, CH-1015 Lausanne, Switzerland


Abstract
A new analytical model of heat flux during laser surface treatment is presented. Prior knowledge of the absorption coefficient is precluded and can be later calculated by giving special consideration to the peak surface temperature which is easily obtained from an optical pyrometer. The results are in excellent agreement with the experimental values measured during hardening and remelting treatments using variable laser conditions.