Title of article :
A STUDY ON FRICTION STIR WELDING OF LOW ALLOY STEEL BY USING A TOOL WITH CONICAL PIN
Author/Authors :
Pradeep, A. National Institute of Technology - Department of Metallurgical and Materials Engineering, India , Muthukumaran, S. National Institute of Technology - Department of Metallurgical and Materials Engineering, India , Dhanush, P.R. National Institute of Technology - Department of Metallurgical and Materials Engineering, India , Nakkeran, T. National Institute of Technology - Department of Metallurgical and Materials Engineering, India
Abstract :
In this experimental work, tungsten based alloy tool is used for Friction Stir Welding (FSW) of IS: 3039 grade II steel plate of thickness 3mm. A specially designed tool made of concave shoulder and conical pin is used, which has shorter pin length of 2.6mm. Weld formation with conical shorter pin is observed and is proceeded to analyse with suitable process parameters. A constant tool tilt angle of 1° is used with the combination of three tool rotational and travel speeds (3x3). At 1120rpm tool rotational speed and 8mm/min travel speed, the tensile specimen is found to have higher ultimate tensile strength. The best mechanical and metallurgical properties are obtained at lower travel speed, higher tool rotational speed and 1° tool tilt angle. Micro and macro structural investigation are carried out and micro hardness measurement showed higher values at both stir zone and HAZ compared to the base metal
Keywords :
Friction stir welding , Steels , Conical shorter pin , Tool tilt angle
Journal title :
International Journal of Mechanical and Materials Engineering
Journal title :
International Journal of Mechanical and Materials Engineering
