in a redrawing - ironing apparatus provided with a punch fixed on a ram , a die means including a redrawing die and ironing dies , an annular piston for fastening the die means , a cup retained pad adapted to push the inner periphery of the bottom of a drawn cup placed on the redrawing die , and pins fixed on the annular piston and extending axially , the free end surface of the pin is engaged with the flange of the cup retainer pad at the end of the redrawing . as a result , the earing portions of the drawn cup can be prevented from being thinned and broken into fragments at the redrawing .