Advantages Of Metal Forming

CHAPTER ONE

INTRODUCTION

1.1. General

Metal forming is the technology used for shaping metal and alloys into useful products by various forming processes such as rolling, extrusion, forging, drawing, sheet metal forming... etc.. The forming process can be carried out on hot, warm and cold working, depending on the recrystallization temperature of deformed materials [1]. A great variety of metallic parts for building sections, aircrafts and automobiles are produced by the forming processes.

Sheet metal forming (SMF) is a special type of forming processes in which blanks, with a thickness being much smaller than the other dimensions are formed into desired forms. SMF involves flanging, bending, punching, stretching, stamping, deep drawing, spinning and other processes, which permit the production of large quantities of metal portions with various complexities. SMF differs from most bulk forming operations in several respects. In sheet forming, tension predominates where bulk forming processes are mainly compressive. Moreover, one or both surfaces of deforming regions are often free [2].

Sheet metal spinning (SMS) is one of the metal forming operations for production the axially symmetric hollow components, where a flat metal blank is formed by a roller which gradually forces the blank on the mandrel, to form the final shape of the product. Through the spinning process, the blank is clamped between the mandrel and tail stock, these three components rotate synchronously at an