Effect of induction assisted friction stir welding on AISI 410 stainless steel

Abstract

In the area of welding friction stir welding is the latest metal joining method which introduced in 1991 by The Welding Institute The greatest benefits of this friction stir welding are it is a solid state welding where the metals do not melt filler metals are not needed moreover it is a non polluting welding method and it provides a better joining strength too The main limitations of friction stir welding are the difficulty to weld hard metals and alloys and the damages happens to the tool pin and shoulder These limitations can be overcome by using an additional in situ heating source The main in situ heating sources using nowadays are induction heating resistance heating arc heating and laser heating In these heating methods induction heating and laser heating are the quickest heating methods While comparing induction heating method with laser heating induction heating method is well economic and easy to handle Induction heating does not require direct contact with the metals Induction assisted friction stir welding is the best method for welding ferrous and other magnetic materials This welded joint shows higher strength compared to conventional welding methods By adopting this method the tool damage rate also reduced newline