Weld formation mechanism of fiber laser oscillating welding of austenitic stainless steel

被引：100
|
作者：
Hao, Kangda [1 ]
Li, Geng [1 ]
Gao, Ming [1 ]
Zeng, Xiaoyan [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2015年 / 225卷
基金：
中国国家自然科学基金;
关键词：
Laser welding; Oscillating; Morphology; Welding mode; Stainless steel; JOINTS; ALLOY; BEAM;
D O I：
10.1016/j.jmatprotec.2015.05.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of beam oscillating parameters on weld morphologies are investigated. Weld geometrical sizes were counted statistically. The results showed that the difference in cross-section width from the top to the lower gradually reduced to disappear with the increase of oscillating frequency. Weld cross-section was featured by slender nail when the frequency was 10 Hz or so, which was similar with conventional laser keyhole weld. It changed to dumpy nail, V-shape and U-shape in sequence with the increase of the frequency within the range from 20 Hz to 1000 Hz. The welding speed thresholds transforming the welding from keyhole mode to unstable mode and from unstable mode to heat conduction mode were confirmed as 24 m/min and 48 m/min, respectively. Weld formation mechanisms were summarized by weld overlapping ratio and the transformation of welding mode. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：77 / 83
页数：7
相关论文
共 50 条
  • [31] Effect of active flux addition on laser welding of austenitic stainless steel
    Kaul, R.
    Ganesh, P.
    Singh, N.
    Jagdheesh, R.
    Bhagat, M. S.
    Kumar, H.
    Tiwari, P.
    Vora, H. S.
    Nath, A. K.
    SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2007, 12 (02) : 127 - 137
  • [32] Effect of laser welding on deformation mechanisms in irradiated austenitic stainless steel
    Mao, Keyou S.
    Sun, Cheng
    Liu, Xiang
    Qu, Haozheng J.
    French, Aaron J.
    Freyer, Paula D.
    Garner, Frank A.
    Shao, Lin
    Wharry, Janelle P.
    JOURNAL OF NUCLEAR MATERIALS, 2020, 528
  • [33] Thermomechanical phenomena occurring during laser welding of an austenitic stainless steel
    Lhospitalier, S
    Bres, S
    Bourges, P
    Dumont, C
    Bert, A
    Lambertin, M
    REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 1999, 96 (02): : 209 - 219
  • [34] Weld bead profile of laser welding dissimilar joints stainless steel
    Mohammed, Ghusoon R.
    Ishak, M.
    Aqida, S. N.
    Abdulhadi, Hassan A.
    4TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING RESEARCH (ICMER2017), 2017, 257
  • [35] Deep penetration laser welding of austenitic stainless steel thick-plates using a 20 kW fiber laser
    Fang, Chao
    Xin, Jijun
    Dai, Wenhua
    Wei, Jing
    Wu, Jiefeng
    Song, Yuntao
    JOURNAL OF LASER APPLICATIONS, 2020, 32 (01)
  • [36] Solidification Mechanism of Austenitic Stainless Steel Weld Metals with Primary Ferrite Solidification
    Inoue, Hiroshige
    Koseki, Toshihiko
    TRENDS IN WELDING RESEARCH: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE, 2013, : 242 - 248
  • [37] FORMATION OF AUSTENITIC-FERRITIC WELD METAL STRUCTURE IN WELDING OF NIOBIUM TO STEEL
    SIVOV, EN
    DYACHENKO, VV
    WELDING PRODUCTION, 1974, 21 (05): : 32 - 34
  • [38] Laser weld formation and microstructure evolution in stainless steel alloys
    Tate Patterson
    John Lippold
    Boyd Panton
    Welding in the World, 2022, 66 : 1521 - 1534
  • [39] Laser weld formation and microstructure evolution in stainless steel alloys
    Patterson, Tate
    Lippold, John
    Panton, Boyd
    WELDING IN THE WORLD, 2022, 66 (08) : 1521 - 1534
  • [40] EFFECTS OF ELECTRODE DEFORMATION OF RESISTANCE SPOT WELDING ON 304 AUSTENITIC STAINLESS STEEL WELD GEOMETRY
    Charde, Nachimani
    JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES, 2012, 3 : 261 - 270
12345