Abstract: A shot sleeve for a die casting apparatus has a piston bore, and includes: an elongate body fabricated of a first material, the body having an axial bore extending therethrough; a first sleeve insert fabricated of a second material, the first sleeve insert being accommodated in the axial bore and defining a first surface of the piston bore; and a second sleeve insert fabricated of a third material, the second sleeve being accommodated in the axial bore and defining a second surface of the piston bore, the third material having a higher ductility than the second material.

Abstract: A container for use in a metal extrusion press has a longitudinal axis, the longitudinal axis being oriented generally horizontally and dividing the container into an upper portion and a lower portion when the container is in the use position. The container comprises: a mantle comprising an elongate body having an outer surface and an axial bore therein; an elongate liner accommodated within the axial bore, the liner comprising a longitudinally extending passage therein through which a billet is advanced; a first fluid channel adjacent an outer surface of the mantle, the first fluid channel being configured to direct a first fluid therethrough for cooling a first end of the container; and a second fluid channel adjacent an outer surface of the mantle, the second fluid channel being configured to direct a second fluid therethrough for cooling a second end of the container.

Abstract: A container for use in a metal extrusion press comprises: a mantle having an elongate body comprising an axial bore; an elongate liner accommodated within the axial bore. The liner comprises a longitudinally extending passage through which a billet is advanced, and an elongate slot adjoining the passage. The container also comprises a vacuum conduit in fluid communication with the passage for removal of gases from the passage during extrusion.

Abstract: A container for use in a metal extrusion press has a longitudinal axis, the longitudinal axis being oriented generally horizontally and dividing the container into an upper portion and a lower portion when the container is in the use position. The container comprises: a mantle comprising an elongate body having an outer surface and an axial bore therein; an elongate liner accommodated within the axial bore, the liner comprising a longitudinally extending passage therein through which a billet is advanced; a first fluid channel adjacent an outer surface of the mantle, the first fluid channel being configured to direct a first fluid therethrough for cooling a first end of the container; and a second fluid channel adjacent an outer surface of the mantle, the second fluid channel being configured to direct a second fluid therethrough for cooling a second end of the container.

Abstract: A container for use in a metal extrusion press comprises: a mantle having an elongate body comprising an axial bore; an elongate liner accommodated within the axial bore. The liner comprises a longitudinally extending passage through which a billet is advanced, and an elongate slot adjoining the passage. The container also comprises a vacuum conduit in fluid communication with the passage for removal of gases from the passage during extrusion.

Abstract: In a dummy block construction for use in extruding an extrudable metal, the dummy block having a dummy block base; a connector for connecting said dummy block base to a stem of an extruder; a replaceable wear ring connected to a forward circumferential portion of said dummy block base; a device for releasably securing said wear ring to said dummy block base; a device for expanding said ring to engage a billet container inside wall of an extrusion press during extrusion of a billet of extrudable metal through such extrusion press, the improvement being characterized in the wear ring being a metal collar having a conical interior surface converging towards said dummy block base; and the device for expanding the ring comprising a metal plunger having a plunger head with a conical surface for engaging the collar conical surface to expand the collar as said plunger head is forced into the collar during extrusion; the converging surfaces of the collar and the plunger head extending a sufficient distance to permit t

Abstract: In a dummy block construction for use in extruding an extrudable metal, the dummy block having a dummy block base; a connector for connecting said dummy block base to a stem of an extruder; a replaceable wear ring connected to a forward circumferential portion of said dummy block base; a device for releasably securing said wear ring to said dummy block base; a device for expanding said ring to engage a billet container inside wall of an extrusion press during extrusion of a billet of extrudable metal through such extrusion press, the improvement being characterized in the wear ring being a metal collar having a conical interior surface converging towards said dummy block base; and the device for expanding the ring comprising a metal plunger having a plunger head with a conical surface for engaging the collar conical surface to expand the collar as said plunger head is forced into the collar during extrusion; the plunger head having a planar face and the collar having a forward planar face; the converging surf

Abstract: An improved cooling system is provided in a piercing mandrel used in extruding tubular material made of metals having extruding temperatures above the annealing temperature of H13 tool steel such as brass, copper and the like. The piercing mandrel has a replaceable tip fitted on the end of the stem portion for the mandrel. A cooling channel system is provided at the distal end of the stem and comprises a disperser for dispersing cooling fluid in equi-distant, multi-radial directions as the cooling fluid flows out of the stem distal end. An annular channel is provided at the perimeter of the mating faces of the bore in the tip and the stem distal end and which is in communication with the disperser to direct radially cooling fluid annularly of the perimeter of the mating faces at the stem distal end. The cooling channel system further comprises about the perimeter of the stem distal end a plurality of equi-distant, longitudinally directed channels which are in communication with the annular channel.

Abstract: An extrusion press for extruding extrudable metals through a die by use of a dummy block, the addition of a mechanical venting device to vent gases from the container.

Abstract: In a circular dummy block for use in an extrusion press for extruding through a die, extrudable metal, a bayonet type coupler for connecting the dummy block to a stem of the extrusion press.