Analysis of melt ejection during long pulsed laser drilling |
Cross-sections of keyhole for simulation and experiment results on 304 SS and aluminum targets in laser drilling. (a) Simulation result of laser drilling on 304 SS; (b) experimental result of laser drilling on 304 SS; (c) simulation result of laser drilling on aluminum; (d) experimental result of laser drilling on aluminum. Laser pulse power density is 5.71 MW/cm2 and pulse width is 1 ms. |
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