Study of mechanical behaviour & microstructural properties on friction stir welded aluminium alloys 6082 - t6&8011

Abstract

In this study 6082 T6 aluminium alloys and 8011 aluminium alloys of 5mm Thickness by using a friction stir welding procedure, plates were connected. weldments are carried out by varying various parameters such as Tool rotational rates are varies from(600 rpm,800 rpm,1000 rpm),Traverse speed are varies from(10 mm/min,20 mm/min,30mm/ min) Axial Forces are varies from (4 kn,6 kn,8 kn) and Tilt angle maintains 10.This process performed by nonconsumable tool as Hexagonal,cylindrical and square pin profiles to generate a heat energy and plastic atomic diffusion's are made in the weldments. The fractography microstructure of tensile specimen shows minimum failure when the tool rotational speed is 800rpm, traverse speed at 20 mm/min and axial force 8KN.