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Proceedings Paper

Three-dimensional hydrodynamic simulation of laser-induced melting and evaporation
Author(s): Takashi Yabe
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Paper Abstract

We have succeeded for the first time to simulate dynamic phase transition from metal to vapor. This success is due to the CIP (Cubic-Interporated Pseudoparticle/Propagation) method that can treat solid, liquid and gas together and can trace a sharp interface with almost one grid. We report here the application to laser-induced evaporation and welding process. In the former case, aluminum is evaporated well after the laser beam ended and evaporation occurs with a large angle to the target normal leading to large debris. In the latter case, a deep penetration welding of SUS304 by YAG laser has been successfully replicated the experiments and the simulation clarifies the formation mechanism of keyhole.

Paper Details

Date Published: 16 August 2000
PDF: 10 pages
Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); doi: 10.1117/12.407332
Show Author Affiliations
Takashi Yabe, Tokyo Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 4065:
High-Power Laser Ablation III
Claude R. Phipps, Editor(s)

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