Experimental validation of IS2062 deep drawing component

Abstract

Deep drawing isa leading manufacturing method in which a sheet metal blank is radially stretched into a die by action of a punch to produce various parts of automobiles, computers, electronic items and many other things used in day-to-day life. Optimization of sheet metal forming process parameters was important to reduce the cost of manufacturing a product. Forming a defect-free drawn part is always a challenging task. This work presents analysis and experimental identification of the deep drawing process in order to avoid earring effect and Stretcher strain defect. In our present work, low carbon structural steel (IS2062, Carbon 0.17 to 0.19 wt%) is used for deep drawing application. Factors mainly influencing the friction coefficient, blank holder force, and die nose radius, which are the sheet metal process characteristics that exhibit deformation behaviour. In an experiment, radial clearance between the die and the punch was taken as 0.15 mm on each side. Deep drawing operation was carried out on a 1200 ton hydraulic press with a servo controlled mechanism, a 3 stage forming process was taken and values were compared with the FEA, A cylindrical cup with a LDR of 1.8 has been successfully created experimentally.