Influence of the tools geometry on the deep-drawing force

Résumé

Deep-drawing processes are usually used in automotive industry. In this area the specimen dimensions are between same millimetres in case of small devices to metres in case of a car body. In this study it is presented a comparative analysis about the influence of the punch geometry on the deep-drawing force. Experimental deep-drawing tests were performed. The material used in experiments was steel sheets with 0.5 mm in thickness. In the experiments were used four different dies with different geometries. The influence of the die radius on the deep drawing force
was studied. From the experimental data it was concluded that the punch geometry have the main influence on the deep-drawing force. The small differences seen in the case of using dies with small radius lead to the conclusions that this parameter have no significant influence on the deep-drawing force.