Die Design and Its Parameters for Grain Refinement of AA6XXX Series Through Equal Channel Angular Pressing

Abstract

Basic need of industry is to have a material with less weight and high strength. There are number of techniques to enhance mechanical properties and microstructure, among which equal channel angular pressing is found to be most effective technique. Equal Channel Angular Pressing (ECAP) is one of the famous grain refinement techniques of severe plastic deformation. For this process the die plays an important role. Factors like corner angle, channel angle, friction, number of passes, routes, back pressure and many more may affect the results of the process. In the current study all the parameters for the ECAP process influencing the mechanical properties for the AA6XXX series has been reviewed and analyzed for the better conclusion. Mainly ECAP passed materials have better mechanical, microstructure and physical properties. Two main alloying elements for the 6000 series are Si and Mg. AA6xxx is known for its ease in design, high strength to weight ratio, resistant to corrosion, plasticity and has various applications such as they are used in aircraft, automobile, defense, medical applications etc.