METHOD OF PROCESSING FORGED PIECES IN THE COMBINED DIE Russian patent published in 1995 - IPC

FIELD: plastic metal working. SUBSTANCE: method lies in the following: forged pieces are installed into the trimming matrix of the die, the hole is broached, the burr is cut off, the punch and the forged pieces are detached, the forged pieces are removed out of the die and are released into the storage unit. In this case the squeezing of the outer surface of the forged piece is exercised after cutting-off the burr. The detachment of the punch and the forged piece is fulfilled when punch 4 goes upwards. The hovering of the forged piece is ensured on the squeezing area of the matrix in order to install the consequent forged piece into the matrix. From this place, using the working stroke of the punch the forged piece is pushed through by the following one into the storage unit. The outer surface of the forged pieces is decreased by the value of 0.3-0.7 mm per side in the process of squeezing. EFFECT: enhanced efficiency. 5 dwg