International Journal of Research in Aeronautical and Mechanical Engineering Health Hazards Due to Various Welding Techniques and Its Remedy by Friction Stir Welding (fsw)

FSW is a solid phase welding, invented by W. Thomas and his colleagues at The Welding Institute (TWI), UK, in 1991. It is proven that FSW is completely user friendly, non hazardous and produces no effluents. From the advent of the modern Welding technology, most of all the techniques that were developed produced fumes and gases that were hazardous to the welders and the environment. Protective measures handled to overcome the hazards have been by local exhaust ventilation and special respiratory equipment pertaining to welding conditions. But still this could only minimize the problems and could not eliminate them. This tuned the researchers to the search of a more eco-friendly type of welding. Friction stir welding of materials such as aluminum and magnesium is found to be environmentally friendly compared to other welding processes. FSW also has advantages that overcomes most of the demerits that are in the conventional and even is expected to be the best among all other un-conventional welding techniques. This paper focuses on detailing the diseases and hazards produced by effluents of welding and prove the superiority of FSW.