Particulate welding fumes can enter unciliated airways, or may even be absorbed through the skin, possibly to the detriment of the health of welders. The size and shape of the particulates will determine their ability to infiltrate the human body. Hence, the sensitivity of particulate fume size to welding parameters such as arc voltage (20–36 V) and metal transfer mode (dip, globular and spray) was assessed. Transmission electron microscopy (TEM) imaging was used for determining particulate fume size and it was found to be an accurate, reproducible, and relatively simple technique. The results revealed a higher percentage of ultra fine particulates (i.e. in < 20 nm and 20–40 nm intervals) in ‘low welding voltage’ fume plume compared with ‘high welding voltage’ fume plume. Fundamentally, the fume plume created during dip metal transfer at low welding voltages (20–26 V) had much lower levels of particulate fume concentration compared with spray metal transfer at high welding voltages (30–36 V). TEM also revealed that for the range of welding voltages and metal transfer modes investigated, the particulates produced were predominantly less than 100 nm in diameter and spherical. Spherical particles (< 100 nm) have been reported elsewhere to reach the alveoli in rats and, hence, may be of relevance with respect to the health of welders. Slightly faceted crystalline particulates and fume particle sizes of up to 800 nm in diameter were also observed with TEM. It should be noted that the agglomeration behaviour of these particulates in the fume plume is considered important but not entirely understood. The particle size results suggest that the key to welder safety is to minimize cumulative exposure to particulate fume over their working life, irrespective of the welding parameters used. Innovative fume extraction techniques, clean workshops, automated welding, and low welding fume consumables should all form part of an integrated solution to help ensure the health and well-being of welding personnel.
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Zhou S., Norrish, J., Chen Z.: Influence of different metal transfer modes on welding fume generation during gas metal arc welding, Proceedings of Materials 98, The Biennial Conference of the Institute of Materials Engineering, University of Wollongong, Edited by M. Ferry, IMEA, 6-Jul-98, pp. 295–300.
AS 2985:2004, Workplace atmosphere — Method for sampling and gravimetric determination of respirable dust, Standards Australia, 2004.
Jenkins N., Pierce W.M.-G., Eagar T.W.: Particle size distribution of gas metal and flux cored arc welding fumes, Welding Journal, October 2005, vol. 84, no. 10, pp. 156s–163s.
Wulfgang L. (Ed.): Industrial applications of nanomaterials: Chances and risks, Future Technology Report No. 54, Dusseldorf, August 2004, ISSN 1436–5928.
Heile F., Hill D.C.: Particulate fume generation in arc welding process, Welding Journal, July 1975, vol. 54, p. 201.
Jin Y: Fume generation from gas metal arc welding processes, Staub-Reinhaltung der Luft, 1994, vol. 54, 67.
Sterjovski Z., Brassier J., de Thoisy E., Cuiuri D., Norrish J., Monaghan B.: An investigation of particulate weld fume generated from the GMAW of plain carbon steel, Australasian Welding Journal — Welding Research Supplement, 2006, vol. 51, no. 1, pp. 34–40.
Sowards J.W.: Methods for sampling and characterizing arc welding fume particles, Doc. IIW-1751 -06 (exdoc. VIII-2018–06), Welding in the World, 2006, vol. 50, no. 9/10, pp. 40–54.
American Welding Society: Characterisation of arc welding fume, Report, AWS Safety and Health Committee, 1983.
Sterjovski Z., Monaghan B. Norrish J.: Evaluation of characterisation techniques for particulate welding fume, Australasian Welding Journal — Welding Research Supplement, 2009, vol. 54, no. 1, p. 43.
Carpenter K., Monaghan B.J., Norrish J.: Influence of shielding gas on fume size morphology and particulate composition for gas metal arc welding, ISIJ International, 2008, vol. 48, no. 11, pp. 1570–1576.
Kobayashi M., Maki S., Hashimoto Y, Suga T.: Investigations on chemical composition of welding fumes, Welding Journal, July 1983, p. 190.
Kobayashi M., Maki S., Hashimoto Y, Saga T.: Some considerations about the formation of welding fumes, Doc. IIW-575-08 (ex-doc. VIII-715–77), Welding in the World, 1978, vol. 16, no. 11/12, pp. 238–248.
Speight F., Campbell H.: Fumes and gases in the welding environment with special reference to industrial hygiene, AWS, 1979, 232.
Castner H.R.: Gas metal arc welding fume generation using pulsed current, Welding Journal, 1995, vol. 74, no. 2, p. 59-s.
Dennis J., Mortazavi S.B.: The mechanism of fume and spatter formation in MIG welding, Occasional Technical Report for Metal Fume Research Unit, University of Bradford, England, 1996, pp. 3–16.
Turkdogan E.T., Grieveson R, Darken L.S.: Enhancement of diffusion-limited rates of vaporization of metals, Journal of Physical Chemistry, August 1963, vol. 67, p. 164.
Jenkins, N.T., Eagar T.W.: Chemical analysis of welding fume particles, Welding Journal, AWS, June 2005, vol. 84, no. 6, pp. 87s–93s.
Monaghan B.J., Norrish J., Potter J., Yeo W., Naidoo V.: Evaluation of a questionnaire seeking self reported health symptoms, cardiovascular risk and welding fume exposure in welders, Journal of Occupational Health and Safety — Australia and New Zealand, 2009, vol. 25, pp. 223–230.
Pires I., Quintino L, Miranda R.M.: Analysis of the influence of shielding gas mixtures on GMAW metal transfer modes and fume formation rate, Materials and Design, 2007, vol. 28, no. 5, pp. 1623–1631.
Pires I., Quintino L, Miranda R.M., Gomes J.F.R: Fume emissions during gas metal arc welding, Toxicological and Environmental Chemistry, 2006, vol. 88, no. 3, pp. 385–394.
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Sterjovski, Z., Norrish, J. & Monaghan, B.J. The Effect of Voltage and Metal Transfer Mode on Particulate Fume Size During the GMAW of Plain Carbon Steel. Weld World 54, R249–R256 (2010). https://doi.org/10.1007/BF03266737
- GMA welding
- Health and Safety
- Metal transfer
- Occupational health
- Particle size
- Reference lists