Laser drilling of stainless steel with nanosecond double-pulse

被引：67

作者：

Wang, X. D. ^{[1
]}

Michalowski, A. ^{[2
]}

Walter, D. ^{[3
]}

Sommer, S. ^{[3
]}

Kraus, M. ^{[3
]}

Liu, J. S. ^{[1
]}

Dausinger, F. ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Optoelect Sci & Engn, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Univ Stuttgart, IFSW, D-70569 Stuttgart, Germany

[3] Forsch Gesell Strahlwerkzeuge mbH, D-70569 Stuttgart, Germany

来源：

OPTICS AND LASER TECHNOLOGY | 2009年 / 41卷 / 02期

关键词：

Laser drilling; Double-pulse; Pulse shaping; INDUCED BREAKDOWN SPECTROSCOPY; ND-YAG LASER; ABLATION; PLASMA; SAMPLES; SINGLE; ENHANCEMENT; DYNAMICS; MODEL; STATE;

D O I：

10.1016/j.optlastec.2008.05.021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nanosecond double-pulse laser drilling is reported in this paper. The double-pulse herein represents two closely conjoint pulses with 21 ns pulse duration and about 52 ns interpulse separation, which are acquired by temporal pulse shaping. Percussion drilling with such double-pulse is performed in stainless steel samples with different laser fluences, sample's thickness, repetition rates and ambient pressures. The experimental results show that the drilling rates of double-pulse drilling are more than one order of magnitude higher than that of conventional single-pulse drilling in air. Differences in the processing results between single-pulse and double-pulse with various processing parameters are investigated. In addition the ablation mechanisms of the double-pulse drilling are discussed. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：148 / 153

页数：6

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