Review on Investigation of Tailor Welded Blanks of Dissimilar Aluminum-Magnesium Alloys and Hybrid Carbon Composites

Abstract

Reduction in weight, better fuel efficiency and cost effectiveness are the salient attractive features of Aluminum-Magnesium alloys and carbon composite materials. By making use of tailor welded blanks of dis similar materials of different strengths at appropriate locations in automobile outer body, one can achieve these objectives. At the same time, fabrication of these Tailor Welded blanks of Aluminum-Magnesium alloys, next generation carbon composite materials by usual fusion welding processes is a challenge due to the metallurgical changes in the material. Friction stir welding(FSW) is a relatively new welding process which was invented in UK by The Welding Institute. It has proved to be a better technique in developing tailor welded blanks. Researchers are continually involved in getting a better welded joint through friction stir welding. To overcome the problems associated with getting a sound welded joint by friction stir welding, researchers have suggested multi objective optimization of process parameters and double sided friction stir welding methodologies. Further, a methodology to carry out an innovative friction stir welding is discussed. Formability characteristics and mechanical properties of high- tech carbon composite materials and associated difficulties for formation of Tailor welded blanks are discussed.