DIE SET FOR SEPARATION OPERATIONS Russian patent published in 1996 - IPC

FIELD: metal pressure forming. SUBSTANCE: die set has a punch, mounted in its upper part and a die, mounted in its lower part and having a window, in which a knocking-out member is arranged. The knocking-out member also has a window for placing a stationary punch. Due to presence of annular gaps between the die and the knocking-out member, between the knocking-out member and the stationary punch and due to ducts of the knocking-out member and of the die, mutually connecting the above mentioned gaps with a reservoir for grease, constant lubrication of rubbing surfaces of members of the die set is provided. EFFECT: increased wear resistance of the die set due to constant lubrication of surfaces of its members, being subjected to friction. 1 cl, 1 dwg