Nanosecond laser pulses for aluminum and copper drilling
| Autor: | Walid K. Hamoudi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Iraqi Journal of Physics, Vol 16, Iss 36 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2070-4003 2664-5548 |
| DOI: | 10.30723/ijp.v16i36.26 |
| Popis: | Nd:YAG laser pulses of 9 nanosecond pulse duration and operating wavelength at 1.06 μm, were utilized to drill high thermal conductivity and high reflectivity aluminum and copper foils. The results showed a dependence of drilled holes characteristics on laser power density and the number of laser pulses used. Drilled depth of 74 ϻm was obtained in aluminum at 11.036×108 W/cm2 of laser power density. Due to its higher melting point, copper required higher laser power density and/or larger number of laser pulses to melt, and a maximum depth of 25 μm was reached at 13.46×108 W/cm2 using single laser pulse. |
| Databáze: | Directory of Open Access Journals |
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