Micro-welding of Copper Plate by Frequency Doubled Diode Pumped Pulsed Nd:YAG Laser

被引：12
|
作者：
Nakashiba, Shin-ichi [1 ,2 ]
Okamoto, Yasuhiro [2 ]
Sakagawa, Tomokazu [1 ]
Takai, Sunao [2 ]
Okada, Akira [2 ]
机构：
[1] Kataoka Corp, Kohoku Ku, 2-14-27 Shinyokohama, Yokohama, Kanagawa 2220033, Japan
[2] Okayama Univ, Okayama, Japan
来源：
LASER ASSISTED NET SHAPE ENGINEERING 7 (LANE 2012) | 2012年 / 39卷
关键词：
copper; laser welding; absorption; pulsed Nd:YAG laser; SHG; green laser;
D O I：
10.1016/j.phpro.2012.10.076
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A pulsed laser of 532 nm wavelength with ms range pulse duration was newly developed by second harmonic generation of diode pumped pulsed Nd:YAG laser. High electro-optical conversion efficiency more than 13% could welding be achieved, and 1.5 kW peak power green laser pulse was put in optical fiber of 100 mu m in diameter. In micro-welding of 1.0 mm thickness copper plate, a keyhole welding was successfully performed by 1.0 kW peak power at spot diameter less than 200 mu m. The frequency doubled pulsed laser improved the processing efficiency of copper welding, and narrow and deep weld bead was stably obtained. (C) 2012 Published by Elsevier B. V. Selection and/or review under responsibility of Bayerisches Laserzentrum GmbH
引用
收藏
页码：577 / 584
页数：8
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