International Journal of Advance Engineering and Research Development (IJAERD) Volume 1,Issue 5,May 2014, e-ISSN: 2348 - 4470 , print-ISSN:2348-6406 @IJAERD-2014, All rights Reserved 1 ANALYSIS OF THE EFFECT OF PROCESS PARAMETERS IN DEEP DRAWING Krupal T. Shah 1 , Sandip Chaudhary 2 , Darshan K. Bhatt 3 1 Department of Mechanical Engineering, S.P.B. Patel Institute of Technology, Mehsana, India Krupalshah2000@yahoo.com 2 Department of Mechanical Engineering, S.P.B Patel Engineering collge, Mehsana, India Sandip.chaudhary07@yahoo.com 3 Department of Automobile Engineering, Indus Inst. of Tech. & Engg, Ahmedabad, India Bhatt.darshan1986@gmail.com Abstract :- Deep drawing process is a sheet metal forming process where a punch is utilized to forcea flat sheet metal to flow into the gap between the punch and die surfaces. As a result, the sheet metal or blank will deformed into desired shape like cylindrical, conic, or boxed shaped part and also complex parts which normally require redrawing processes by using progressive dies. One of the most common outcomes in deep drawing process is the defects that occur in the cup shell. These defects are caused by many parameters like blank holder force (BHF), Die Radius, Punch Radius, Blank diameter, friction between punch and blank and Die, normal anisotropy of material, blank thickness and many more. The main objectives of the present study are to determine the most critical process parameters that cause defects and thinning in the blanks. The effect of various process parameters will be determined by using Statistical as well as Experimental methods. Ke ywords: Sheet Metal Forming, Deep Drawing, Design of Experiments, ANOVA I. INTRODUCTION 1.1 FORMING Forming is a process in which force is applied to metal to modify its geometry instead of removing of material. The applied force stresses the metal beyond its yield strength, causing the material to plastically deform, but not to fail. The stresses induced during the process are greater than yield strength, but less than fracture strength, of the material. The type of loading may be tensile, compressive, bending or combination of these. This is very economical process as the desired shape, size and surface finish can be obtained without any significant loss of material. This kind of process is required very fine control over the material properties, because to obtain desired shape and size of formed part it is required to maintain ability of material to flow plastically in solid state without deterioration of their properties. In case of plastic deformation the forces applied to material is above the elastic limit. Basically this process is done at room temperature (in cold state) and in this state the material is more rigid than in hot state. Thus, to deform the metal greater pressure is needed in cold state then in hot state. The amount of deformation is depended on the ductility of material. Sheet metal forming is one of the most widely used manufacturing processes for the fabrication of a wide range of products in many industries. The reason behind sheet metal industry gaining a lot of attention in modern technology is due to the ease with which metal may be formed into useful shapes by plastic deformation processes in which the mass and volume of metal are conserved and metal is displaced from one location to another. 1.2 SHHET METAL FORMING