A mechanics model for sheet-metal stamping using deformable dies
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چکیده
This paper studied the deformation mechanisms of sheet metals stamped by rigid punches and deformable dies. Emphasis was placed on the development of elastic plastic zones in the sheet workpieces, on the functions of the die parameters and on their correlations with spring-back. It was found that the reduction of spring-back was due mainly to the interface interaction offered by the dies. The paper provides new insight into processing techniques subjected to plane-strain conditions.
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