Effect of Welding Parameters on Formation of Double-focus Welds

LI Xiao-hui; WANG Su XIA Cai-yun

PDF(565 KB)

Journal of Aeronautical Materials ›› 2008, Vol. 28 ›› Issue (1) : 45-48.

Effect of Welding Parameters on Formation of Double-focus Welds

Author information +

History +

Abstract

A self designed welding head is described.The welding head can divide one torch into two equally and the two focuses are in series along the weld.A series of experiment has done by this head to analyze the effect of welding parameters on the formation and penetration of welds in double focuses laser welding.The experiment results indicate that the weld quality is improved prominently and crack sensitivity is reduced.There are many factors having effect on the formation and penetration of welds of double focuses laser welding,and also having influence on the microstructures and macro forms of welds.In all the parameters,the laser beam power and the wielding speed are the most primary factors.

Key words

double focus / laser welding / parameter / formation of welds

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LI Xiao-hui, WANG Su XIA Cai-yun. Effect of Welding Parameters on Formation of Double-focus Welds[J]. Journal of Aeronautical Materials, 2008, 28(1): 45-48

References

HAND D P,FOX M D T,et al.Optical focus control system for laser welding system and direct casting[J].Optics and Lasers in Engineering,2000,34:415-427.
SCHWEDE H,KRAMER R,HANSEL K,et al.Multi Spot Laser Beam Processing Fundamentals-applications-diagnostics-quality Assessment[J].ICALEO,2001:106-115
TSUKAMOTO S,KAWAGUCHI I,ARAKANE G.Suppression of welding defects in deep penetration CO2 laser welding[J].ICALEO,2000,Section C,7-15.
KATAYAMA S,SETO N,MIZUTANI M.foramtion mechanism of porosity in high power YAG laser welding[C] ICALEO,2000,Section C,16-25.
XIE J.双束激光焊[J].国外机车车辆工艺,2004(4):5-12.
王涛,郑启光,陶星之,等.厚钢板的激光焊接[J].焊接技术,1998(4):3-5.
邹世坤,汤昱,巩水利.钛合金薄板激光焊接技术研究[J].焊接技术,2003,32(5):16-18.
王家淳.钛合金激光焊接的气体保护与焊前清理[J].钛工业进展,2000(4):22-24.
王家淳,王希哲,沈剑韵.钛合金激光焊接稳定性计算模型[J].焊接学报,2000,21(4):13-16.
张旭东.CO2激光焊过程不稳定性的形成机理及其防止[D].北京:清华大学,1997.