Abstract
ABSTRACTBlanking process can be simulated on computer and it will aid in die , punch design andpress selection. Further effect of punch wear on fracture height and bur height in blankcan be ascertained by simulation. This paper demonstrates the blanking process bysimulation using ABAQUS v 6.4. For a 2mm mild steel sheet the simulation shows thatfor the punch force of 240 kN the crack starts at 30% punch penetration depth andpunch force suddenly drops to value of 70kN and remains steady till the blanking iscomplete. In the elastic plastic range the experimental and simulation results agree wellwith rising punch force up to the point of creation of crack, however there is slightdiscrepancy in the down fall of force with depth of penetration of punch. With increaseof the thickness of sheet the crack height is reduced and blank quality is improved.
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