DUMMY BLOCK FOR AN EXTRUSION PRESS

摘要

A dummy block (1) for a metal extrusion press adapted to be mounted on an end portion of a press ram. The dummy block (1) comprises a disk member (4) with a front surface (9) adapted to engage an end of a billet, which disk member (4) has a first configuration in a non-deformed state and a second configuration in an elastically deformed state when the disk member (4) is forced against the end of the billet by the press ram when mounted thereon. The disk member (4) has a generally convex front surface (9) in the non-deformed state and a generally planar front surface (9) in the elastically deformed state. A ring member (5) is provided at an outer rim (6) of the disk member (4), which ring member (5) has a foremost end (8) adapted to be deformed elastically outwards by the disk member (4) when the disk member (4) is elastically deformed.