Effect of surface tension metal transfer on fume formation rate during flux-cored arc welding of HSLA steel

ORIGINAL ARTICLE

Abstract

This paper reports the effect of process parameters on fume formation rate during flux-cored arc welding (FCAW) of high-strength low-alloy (HSLA) steel plates using steady current mode and surface tension transfer (STT) mode. Five levels of wire feed speed and five levels of voltage were used to generate welding fumes. Fume formation rate (FFR) was determined by ANSI/AWS F1.2 method. Investigation reveals that FCAW with STT mode reduced the FFR around 40–50% when compared with steady current mode. The STT mode of welding also provides excellent weld bead geometry and microhardness level. Three-dimensional representation of FFR was generated and gives clear representation about the influence of process parameters on FFR for both the steady current mode and STT mode welding.

Keywords

Flux-cored arc welding Fume formation rate Surface tension transfer HSLA steel 

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References

  1. 1.
    NIOSH (1988) Criteria for recommended standard—welding, brazing, and thermal cutting. Cincinnati, OH: US Department of Health and Human Services, Public health service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health. 54–84. 136–148Google Scholar
  2. 2.
    Dennis JH, French MJ, Hewitt PJ, Redding MSB, Mortazavi SB, Redding CAJ (2002) Control of occupational exposure to hexavalent chromium and ozone in tubular wire arc welding processes by replacement of potassium by lithium or by addition of zinc. Ann Occup Hyg 46:33–42CrossRefGoogle Scholar
  3. 3.
    Voitkevich V (1995) Welding fumes—formation, properties and biological effects. Abington PublishingGoogle Scholar
  4. 4.
    Pires I, Quintino L, Miranda R (2007) Analysis of the influence of shielding gas mixtures on the gas metal arc welding metal transfer modes and fume formation rate. Materials and Design 28:1623–1631CrossRefGoogle Scholar
  5. 5.
    Brighton: Fronius (2004) The CMT Process—a revolution in materials-joining technology. Fronius USA LLC, 2004Google Scholar
  6. 6.
    Bruce D DeRuntz (2003) Assessing the Benefits of Surface Tension Transfer® Welding to Industry. Journal of Industrial Technology 19(4)Google Scholar
  7. 7.
    Wang W, Liu S, Jones JE (1995) Flux cored arc welding: Arc signals, processing and metal transfer characterization. Welding Journal 369-s to 377-sGoogle Scholar
  8. 8.
    Lincoln electric company Power wave 455M/STT operator’s manuals (2009) (IM808-A and IM827-C), Cleveland, Ohio, USAGoogle Scholar
  9. 9.
    AWS/ANSI F1.2 (1992) Laboratory methods for measuring fume generation rates and total fume emission of welding and allied processes. American Welding Society, MiamiGoogle Scholar
  10. 10.
    Nadkarni SV (2005) Modern arc welding technlology, Ador Welding Limited, Oxford & IBH Publishing Co. Pvt. Ltd, pp 360–362Google Scholar
  11. 11.
    Heile RF, Hill DC (1975) Particulate fume generation in arc welding processes. Welding Journal 54(6):201-s–210-sGoogle Scholar
  12. 12.
    Gray CN, Hewitt P, Hicks R (1982) New approach would help control weld fumes at the source, part 2. Welding Metal Fabrication 393–397Google Scholar
  13. 13.
    Levchenko OG (1992) Effect of CO2 welding conditions of structural steels on fume formation. Automatic Welding 45(9–10):31–33Google Scholar
  14. 14.
    Golvatchuk AP, Levchenko OG (1985) Parameters of mass generation of welding aerosols and their use in practice. Welding Production 10:40–41Google Scholar
  15. 15.
    Albert R V (1996) Fume generation in gas metal arc welding. Doctoral thesis. University of New HampshireGoogle Scholar
  16. 16.
    Gray CN, Hewitt P, Hicks R (1980) The effect of oxygen on the rate of fume formation in metal inert gas welding arcs. Proceedings International Conference on Weld Pool Chemistry and Metallurgy, TWI 27:167–176Google Scholar
  17. 17.
    Hilton DE, Plumridge PN (1991) Particulate fume generation during GMAW and GTAW. Welding and Metal Fabrication 12:556–559Google Scholar
  18. 18.
    Xin H, Geng Z, North TH (2001) Fume generation during solid and metal cored wire welding. Welding Journal 173-s to 183-sGoogle Scholar
  19. 19.
    Yoon CS, Paik NW, Kim JH (2003) Fume generation and content of total chromium and hexavalent chromium in flux-cored arc welding. Ann Occup Hyg 47(8):671–680CrossRefGoogle Scholar
  20. 20.
    Quimby BJ, Ulrich GD (1999) Fume formation rates in gas metal arc welding. Welding Journal 78(4):142-s–149-sGoogle Scholar

Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Department of Manufacturing EngineeringAnnamalai UniversityAnnamalai NagarIndia
  2. 2.Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing EngineeringAnnamalai UniversityAnnamalai NagarIndia

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