Abstract
The present study introduces a finite element analysis and experimental verification of the square cup drawing. Experimental results are presented for deep drawing using two different sheet metal; an annealed aluminum (AL99.5w) and brass alloy (CuZn37) having nominal thickness to of 2, 2.5 and 3 mm. The experiments were conducted using a conical die of 18o half cone angle with square aperture at the die exit of 44×44mm and different relative punch/die clearances 1.5, 1.0, 0.9, and 0.8to. The last three values for relative punch/die clearance give nominal simultaneous corrective ironing ratios 0, 10, and 20% respectively. Flat-bottomed square punches with nose radius of 4mm and different sizes of side wall lengths were used. The corner radii for the punch and die aperture were 8 and 10 mm respectively. The experimental and finite element results showed a very good agreement between results of the deep drawing loads, limiting drawing ratios and modes of failures.
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