STAMPING TOOL FOR MANUFACTURE OF LARGE DIAMETER PIPES FROM TUBULAR BILLET WITH PRESS MOLDING Russian patent published in 2008 - IPC B21D5/10 

FIELD: technological processes, tool.

SUBSTANCE: tool is arranged in the form of two symmetrically installed stamp holders and set of split pair inserts installed in contact with them along support surfaces, which are installed with the possibility of coupling and creation of internal shape-generating surface, support installed on the outer end of upper insert that is extreme according to travel, and limiting plate installed inside the mentioned upper insert and fixed in support with the help of bars with the possibility of control of its distance from the end of upper insert. At that longitudinal axis of limiting plate coincides with transverse axis of shape-generating surface of upper insert, and its length exceeds the distance between the walls of tubular billet.

EFFECT: accuracy of tubular billet installation into stamping tool is increased, as well as quality of pipes press molding.

3 dwg