METHOD OF INVERSE EXTRUSION Russian patent published in 1994 - IPC

Abstract RU 2013154 C1

FIELD: metal working. SUBSTANCE: workpiece is placed in container, die is moved in a direction opposite to extrusion, and extrusion proceeds until the surface of the die and plug are in engagement. Butt-end is formed by additionally moving an insert having a special cavity. Butt-end is removed through hole in die by successive workpiece. EFFECT: enhanced efficiency of the method. 2 dwg

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RU 2 013 154 C1

Authors

Shchegolevatykh V.D.

Lysach N.N.

Ryzhov A.F.

Fedotov A.F.

Korsetskij G.M.

Dates

1994-05-30—Published

1990-07-31—Filed