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Die correction, 55 MN porthole extrusion dies, Aluminium extrusion

[@alvarolimonsanchez]

Hey friend, what is the purpose of the correction? Don't you get too much steel? what kind of tool and what support do you use?

[@vlk1967]

Hi, the goal was to increase the gap 0.15mm on the mandrel of an hollow die. The tool is a 3.00 mm, special by me prepared, "Endmill" driven manually by a "Mannesmann GTV 1000" up to 100000rpm, mountet on a DIY bridge.

[@vlk1967]

The "Bridge", white plastic guy at 3:00 on the right upper corner in the background.