TUBE EXTRUSION TOOL Russian patent published in 2001 - IPC

FIELD: plastic metal working, possibly tube extrusion in simple action presses from solid blank of aluminium alloys. SUBSTANCE: chamber-type die may be readjusted for predetermined dimensions of extruded tube at changing embedded working dies and needles arranged onto mounting surfaces of base block whose dimensions are the same as dimensions of working container of press. Zone of mounting needle in flat splitter is not subjected to action of metal pressure of extruded ingot due to use of safety cover arranged in turning on front end of splitter. In lateral surface of holder of embedded die there is turning for placing and fixing supporting flange with slit in diametrical plane. Said flange is used for demounting base block at changing worn dies and needles or at readjusting tool for different dimensions of tube. EFFECT: lowered labor consumption for making tools of extrusion press. 2 dwg