Experimental Investigation of Laser Welded Joints on AISI 304L Stainless Steel Using Fiber Laser

Ganesh S. Rathod; V.K.Haribhakta

Volume : III, Issue : VII, July - 2014

Experimental Investigation of Laser Welded Joints on AISI 304L Stainless Steel Using Fiber Laser

Ganesh S. Rathod, V. K. Haribhakta

Abstract :

Using laser technology joining of thin materialshas been an increased interest in recent years.Laser beam welding (LBW) offers a high speed, high power, clean heat source to join materials. Due to its advantage over conventional welding processes Laser welding of thin material are increasingly used in various industry such as less heat affected zone (HAZ), less contamination of the joint,no indentation mark, short process time and accuracy.In this study Fiber laser welding process has successfully used for butt welding of thin austenitic stainless steel (AISI 304L) plates. Selection of proper parameters is important to obtain the desired quality of weld. Laser power, welding speed and beam diameter are selected as process parameters. A statistical design of experiment (DOE) is used to optimize selected LBW parameters. The experiments are designed with full factorial approach. Butt welding trials are conducted as per DOE using 100W SPI fiber laser source in the continuous wave mode on 0.2 mm and thick sheet.