Estimation of the depth limit for percussion drilling with picosecond laser pulses

被引：36
|
作者：
Foerster, Daniel J. [1 ,2 ]
Weber, Rudolf [1 ]
Holder, Daniel [1 ]
Graf, Thomas [1 ]
机构：
[1] Inst Strahlwerkzeuge IFSW, Pfaffenwaldring 43, D-70569 Stuttgart, Germany
[2] Grad Sch Adv Mfg Engn GSaME, Nobelstr 12, D-70569 Stuttgart, Germany
来源：
OPTICS EXPRESS | 2018年 / 26卷 / 09期
关键词：
HEAT ACCUMULATION; ABLATION; METALS; INCUBATION; COPPER; STEEL; POWER;
D O I：
10.1364/OE.26.011546
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a model to predict the final depth of percussion-drilled holes that are produced with picosecond laser pulses in metals. It is based on the assumption that boreholes always have conical geometries when the drilling process terminates. We show that the model is valid for various process parameters when drilling in stainless steel. This was even confirmed by drilling with 3 mJ pulses which resulted in a 10 mm deep borehole without thermal damage. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：11546 / 11552
页数：7
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