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Proceedings Paper

Development in laser cutting of steel: analytical modeling and experimental validation of the metallurgical effects
Author(s): Ebrahim Abdulhadi; Jean-Marc. Pelletier; Michel Lambertin
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Paper Abstract

The present work reports on the analytical model describing the HAZ geometry near the cut edges resulting from laser cutting of steels induced by the heat flow during the moving of the molten layer in the kerf. This model is based on the molten layer thickness, in macroscopic state, which depends on mean melt velocity and mass balance between mass loss and gain. The energy balance which describes the equilibrium set up in the molten layer is presented and analyzed. Results yield average value for the temperature of molten layer surface and mean melt viscosity. This model indicates that there is a strong dependence between the geometry of the HAZ and the molten layer features. Investigation of the influence of experimental parameters is also performed. Calculated results are compared with experimental measurements.

Paper Details

Date Published: 18 August 1997
PDF: 12 pages
Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281084
Show Author Affiliations
Ebrahim Abdulhadi, Lab. Bourguignon des Materiaux et Procedes/ENSAM (France)
Jean-Marc. Pelletier, GEMPPM/INSA de Lyon (France)
Michel Lambertin, Lab. Bourguignon des Materiaux et Procedes/ENSAM (France)

Published in SPIE Proceedings Vol. 3097:
Lasers in Material Processing
Leo H. J. F. Beckmann, Editor(s)

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