Abstract
AbstractAlthough tungsten inert gas welding is considered one of the cleanest welding techniques, which is virtually “fumeless”, recent studies show, there is a significant amount of nano-sized particles generated during the process. To protect the welding personnel from possible harmful effects of inhalation of fume particles, fume extractor torches are developed. One such welding fume extractor torch was tested and compared to a conventional one during manual welding of unalloyed structural steel. Using the fume extractor torch, a significantly lower amount of nano-particles was measured in the welder’s personal breathing zone effectively decreasing the exposure to possible harmful effects of those nano-sized particles.
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