Three-dimensional and Two-dimensional Modelling of Springback in the Single-pass Conventional Metal Spinning of Cones

Abstract

Parts for industrial and domestic use have been formed by means of the metal spinning process as far back as the ancient Egyptians. Research into the field was initially concentrated on experimental and theoretical studies. The development of numerical methods alongside the increasing capabilities of modern computing brought about numerical investigations into the process. This thesis presents a three-dimensional numerical model developed using the finite element method. In addition, a formability parameter is proposed and a formability surface linking the round off radius, rotational speed and half cone angle of the mandrel is presented. This thesis also presents the first numerical parametric study into springback using a three-dimensional finite element model.