FRICTION STIR WELDING OF ALUMINIUM ALLOY WITH A DISTINCT MATERIAL SANDWICHED IN BETWEEN Dissertation-II Submitted in partial fulfilment of the requirement for the award of degree Of Master of Technology IN MECHANICAL ENGINEERING By Aakash Sharma Registration Number 11201051 Under the guidance of Prashant Kumar Pandey U.ID 15821 DEPARTMENT OF MECHANICAL ENGINEERING LOVELY PROFESSIONAL UNIVERSITY PUNJAB April 2017