| Autor: |
Kroschel, Alexander, Michalowski, Andreas, Graf, Thomas |
| Předmět: |
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| Zdroj: |
Advanced Optical Technologies; Jun2018, Vol. 7 Issue 3, p183-188, 6p |
| Abstrakt: |
A model for predicting the borehole geometry for laser drilling is presented based on the calculation of a surface of constant absorbed fluence. It is applicable to helical drilling of through-holes with ultrashort laser pulses. The threshold fluence describing the borehole surface is fitted for best agreement with experimental data in the form of cross-sections of through-holes of different shapes and sizes in stainless steel samples. The fitted value is similar to ablation threshold fluence values reported for laser ablation models. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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