Explain construction and working of Combination Die with neat sketch.

Explain construction and working of Combination Die with neat sketch.
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Combination Die: In this both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram. Figure shows a combination of blanking and drawing die.In this cutting operation is combined with bending / drawing operation. In a blanking and drawing combination die first of all the blanking punch is actuated and it separates the blank from the strip and then it exerts sufficient pressure on the edges of the blank to serve as blank holder when the drawing punch descends and draws the blank into the desired shape.

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