Selection of Blank Size for Deep Drawing of Rectangular Parts

Abstract

Sheet metal fabrication plays key role in the area of fabrication. It is used to manufacture various parts like from hinges to automobile bodies. A sheet metal blank is a flat part of sheet which is used to form different shapes in pressing machine. The process of deep drawing begins with holding a blank in between die and punch. The selection of blank size is one of the tedious jobs. This paper suggested an appropriate method for selecting the proper blank size for rectangular parts which required deep drawing process. In this paper, a number of methods suggested by various researchers for blank size are studied. The method suggested by Daniel Dallas is found to be more suitable for rectangular part such as choke used in tube light. The research gaps are identified, and suitable method is suggested through experimentation for specific rectangular drawing parts.