Effect of surface tension on melt pool dynamics during laser pulse interaction
| Autor: | Gerald Albert Knorovsky, Danny O'Neill MacCallum, R. Allen Roach, V. V. Semak |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Acoustics and Ultrasonics business.industry Laser beam welding Mechanics Radius Condensed Matter Physics Laser Surfaces Coatings and Films Electronic Optical and Magnetic Materials Pulse (physics) law.invention Surface tension Optics law Physics::Accelerator Physics business Displacement (fluid) Intensity (heat transfer) Beam (structure) |
| Zdroj: | Journal of Physics D: Applied Physics. 39:590-595 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/39/3/025 |
| Popis: | A previously developed model for simulation of recoil-pressure induced melt displacement during laser pulse interaction has been upgraded to include the restraining effect of surface tension. The results of numerical simulations of melt displacement/ejection during laser welding and drilling using this enhanced model are presented. In particular, the dependences of the threshold pulse energies for melt displacement and melt ejection as functions of laser pulse duration, beam radius and beam intensity distribution are computed and analysed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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