Influence of Surface State in Micro-Welding of Copper by Nd:YAG Laser

被引：27

作者：

Maina, Martin Ruthandi ^{[1
]}

Okamoto, Yasuhiro ^{[1
]}

Inoue, Reiki ^{[1
]}

Nakashiba, Shin-ichi ^{[2
]}

Okada, Akira ^{[1
]}

Sakagawa, Tomokazu ^{[2
]}

机构：

[1] Okayama Univ, Nontradit Machining Lab, 1-1 Tsushima Naka, Okayama 7008530, Japan

[2] Kataoka Corp, 2-14-27 Shin Yokohama, Yokohama, Kanagawa 2220033, Japan

来源：

APPLIED SCIENCES-BASEL | 2018年 / 8卷 / 12期

关键词：

absorption rate; copper; heat conduction; keyhole; laser welding; Nd:YAG laser;

D O I：

10.3390/app8122364

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Laser welding of copper is characterized by low and unstable light absorption around 1000 nm wavelength. Combination of high thermal conductivity and low melting point makes it difficult to obtain good welding quality and leads to low energy utilization. To improve efficiency and welding quality, a technique to enhance process stability using 1064 nm wavelength Nd:YAG laser has been proposed, and absorption rate and molten volume in laser micro-welding were discussed. Since the surface state of specimen affects absorption phenomena, effects of surface shape and surface roughness were investigated. Absorption rate and molten volume were increased by creating appropriate concave holes and by controlled surface roughness. Stable micro-welding process with deep penetration and good surface quality was achieved for transitional processing condition between heat conduction and keyhole welding, by enhanced absorption rate.

引用

页数：13

共 50 条

[31] Thick plate welding with Nd:YAG laser and COIL
Nakabayashi, T
Wani, F
Hayakawa, A
Suzuki, S
Yasuda, K
FIRST INTERNATIONAL SYMPOSIUM ON HIGH-POWER LASER MACROPROCESSING, 2003, 4831 : 416 - 421
[32] Nd:YAG laser surface texturing
Poterasu, M
Dascalu, T
Marian, A
Buca, D
FIFTH CONFERENCE ON OPTICS (ROMOPTO '97), PTS 1 AND 2, 1998, 3405 : 233 - 240
[33] Welding of Aluminum Using a Pulsed Nd:YAG Laser
Neradova, M.
Kovacocy, P.
ACTA POLYTECHNICA, 2010, 50 (06)
[34] F2-laser micro-welding of optical fibers and glass substrates
Ho, S
Aitchison, JS
Herman, PR
Photon Processing in Microelectronics and Photonics IV, 2005, 5713 : 489 - 496
[35] Investigating sensitivity to process parameters in pulsed laser micro-welding of stainless steel foils
Sheikhbahaee, Hamed
Mirahmadi, S. Javid
Pakmanesh, Mohammad Reza
Asghari, Saeed
OPTICS AND LASER TECHNOLOGY, 2022, 148
[36] YAG laser welding with surface activating flux
樊丁
张瑞华
田中学
中田一博
牛尾诚夫
China Welding, 2003, (02) : 3 - 6
[37] Laser welding of glasses using a nanosecond pulsed Nd:YAG laser
de Pablos-Martin, A.
Hoeche, Th.
OPTICS AND LASERS IN ENGINEERING, 2017, 90 : 1 - 9
[38] Optimization of Nd:YAG-laser welding process for Inconel 718 alloy
Xiao, M.
Poon, C.
Wanjara, P.
Jahazi, M.
Fawaz, Z.
Krimbalis, P.
2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM, 2007, 546-549 : 1305 - +
[39] Experiments on Nd:YAG pulsed laser welding of thin sheets
Vâlsan D.-D.
Bolocan V.
Burcă M.
Crăciunescu C.-M.
Materials Today: Proceedings, 2023, 78 : 295 - 301
[40] Investigation of Nd:YAG laser welding with elliptical and focused beams
Ng, ES
Watson, IA
LASERS IN ENGINEERING, 2000, 10 (01) : 1 - 18

← 1 2 3 4 5 →