| 摘要 |
PROBLEM TO BE SOLVED: To provide a press die device which prevents blanking burrs as much as possible without lowering a level of shape accuracy of blanked products. SOLUTION: The press die device 1 comprises an edge 2A in the die 2 where a straight throughhole 20 extends in the vertical direction. In the lower portion of throughhole 20 in the edge 2A, the tapered portion 2B is installed having a tapered hole 2T. Furthermore, on the inside surface 2Ta of the tapered hole 2T in the tapered portion 2B, a protruding portion 2R is provided which extends in the blanking direction of workpiece W and making contact with the rim of a blanking burr Ws.
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