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
收藏
页数：13
相关论文
共 50 条
  • [21] Mathematical Modeling of Laser Micro-Welding for Photovoltaic Devices
    Raghavan, A.
    Palmer, T. A.
    DebRoy, T.
    TRENDS IN WELDING RESEARCH: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE, 2013, : 635 - 640
  • [22] Micro-Welding of Stainless Steel and Copper Foils Using a Nano -Second Pulsed Fiber Laser
    Kumar A.
    Gupta M.P.
    Banerjee J.
    Neogy S.
    Keskar N.
    Bhatt R.B.
    Behere P.G.
    Biswas D.J.
    Lasers in Manufacturing and Materials Processing, 2019, 6 (2) : 158 - 172
  • [23] Laser Micro-Welding Process in which Magnetic Fields are Applied
    Lee, Woo Ram
    Lee, Chul Ku
    Kim, Joo Han
    TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A, 2011, 35 (12) : 1655 - 1662
  • [24] Laser micro-welding of Cu-Al dissimilar metals
    Wenqing Shi
    Wenhua Wang
    Yanlu Huang
    The International Journal of Advanced Manufacturing Technology, 2016, 85 : 185 - 189
  • [25] Tandem Nd:YAG laser welding
    Scott, A
    Frewin, M
    LASER MATERIALS PROCESSING CONFERENCE, PTS 1 & 2: ICALEO '97, 1997, : G44 - G53
  • [26] Nd:YAG laser welding -: An overview
    Karagiannis, S
    Chryssolouris, G
    THIRD GR-I INTERNATIONAL CONFERENCE ON NEW LASER TECHNOLOGIES AND APPLICATIONS, 2003, 5131 : 260 - 264
  • [27] Development and application of miniaturized scanners for laser beam micro-welding
    F. Schmitt
    M. Funck
    A. Boglea
    R. Poprawe
    Microsystem Technologies, 2008, 14 : 1861 - 1869
  • [28] Development and application of miniaturized scanners for laser beam micro-welding
    Schmitt, F.
    Funck, M.
    Boglea, A.
    Poprawe, R.
    MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2008, 14 (12): : 1861 - 1869
  • [29] Selection of parameters in nanosecond pulsed wave laser micro-welding
    Coroado, Julio
    Ganguly, Supriyo
    Suder, Wojciech
    Williams, Stewart
    Meco, Sonia
    Pardal, Goncalo
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2021, 115 (9-10): : 2929 - 2944
  • [30] Laser micro-welding: How low can we go?
    Knorovsky, GA
    Semak, VV
    MacCallum, DO
    TRENDS IN WELDING RESEARCH, PROCEEDINGS, 2003, : 506 - 511
12345