PRESS WHICH CARRIES OUT FORMING AND PIERCING PROCESS SIMULT ANEOUSLY AND MANUFACTURING METHOD OF COOLING PLATE OF HEATEXCHANGOR BY USING THE SAME

摘要

It discloses with respect to the forming and piercing simultaneous molding die. Simultaneously forming metal mold is elevated, and possibly installation, having burring parts of a two-stage punch and a support material, and the two-stage punch by pressing the material for bending by pressing the punch pierced part and the periphery of the material the hole and is provided with a main body and a lower punch inserted into the hole formed is inserted, the die and enables the lifting in the punch inserting hole provided elastic means that elastically biases the die upwardly. Such forming and piercing simultaneous molding mold has the advantage that the number of parts significantly reduced production costs because less of the die required for the process.