Advanced Search

ISSN 1001-3806 CN 51-1125/TN Map

Volume 27 Issue 6
Sep.  2013
Article Contents
Turn off MathJax
Article Navigation >  LASER TECHNOLOGY  > 2003 >  27(6): 503-505

Citation:
shu

Investigation of the porosity defect phenomenon during laser welding of powder metal material

  • 1.

    Institute of Laser Technology & Engineering, HUST, Wuhan, 430074

  • Received Date: 2003-03-03
    Accepted Date: 2003-06-16
  • Welding porosity is the main defect during laser welding.In this paper we briefly analyze the mechanism of engendering pores in powder metal material(PM),and study the influence of welding speed and active gas for welding porosity defect.We find that the pore number will be reduced through depressing metallic vapour if welding speed is increased with constant laser power.Using N2,O2 as active gas,the fluidity of the melting metal can be improved,so blowholes may be avoided.
  • 加载中
  • [1]

    Welz W,Yang G W.International Conference on Quality and Reliability in Welding,1984,D4:16.1～16.6.
    [2] 张文铖.金属熔焊原理及工艺.北京:机械工业出版杜,1987:160～173.
    [3] 夏锦华,殷声,叶宏煜 et al.人工晶体学报,1999,28(1):79～83.
    [4]

    He A Zh,Ni X W,Lu J.SPIE,1991,A1554:547～552.
    [5]

    Huntington C A,Edgar T W.Welding Research Supplement,1983 (4):11～15.
    [6]

    Arata Y,Oda T.Transaction of JWRI,1984,13(2):55～61.
    [7]

    Knopp W K.Int J Powder Metall,1975,11(1):63～65.
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Get Citation
PDF
XML

Article views(2978) PDF downloads(641) Cited by()

Proportional views

Investigation of the porosity defect phenomenon during laser welding of powder metal material

  • 1. Institute of Laser Technology & Engineering, HUST, Wuhan, 430074
  • Received Date: 2003-03-03
  • Accepted Date: 2003-06-16
  • Available Online: 2003-11-25

Abstract: Welding porosity is the main defect during laser welding.In this paper we briefly analyze the mechanism of engendering pores in powder metal material(PM),and study the influence of welding speed and active gas for welding porosity defect.We find that the pore number will be reduced through depressing metallic vapour if welding speed is increased with constant laser power.Using N2,O2 as active gas,the fluidity of the melting metal can be improved,so blowholes may be avoided.

    HTML

Reference (7)

Catalog

    Copyright © Laser Technology. 蜀ICP备10038222号-1

    Address：No. 7, Section 4, Renmin South Road, Chengdu, Sichuan Province, China Postal Code：610041  Telephone：028-68011091/68011046  Email： jgjs@vip.163.com,  jgjs@sina.com

    Supported by: Beijing Renhe Information Technology Co. Ltd  support: info@rhhz.net

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return