Transient Model for CW and Pulsed Laser Machining of Ablating/Decomposing Materials—Approximate Analysis
- 1 August 1996
- journal article
- Published by ASME International in Journal of Heat Transfer
- Vol. 118 (3) , 774-780
- https://doi.org/10.1115/1.2822698
Abstract
Approximate, quasi-one-dimensional conduction models have been developed to predict the changing shape of holes, single grooves, or overlapping grooves carved by ablation into a thick solid that is irradiated by a moving laser source. For CW or pulsed laser operation a simple integral method is presented, which predicts shapes and removal rates with an accuracy of a few percent, while requiring one order of magnitude less CPU time than a three-dimensional, numerical solution. For pulsed operation a “full-pulse” model is presented, computing the erosion from an entire pulse in a single step, and reducing computer time by another order of magnitude.Keywords
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