1. Technological aspects
1.1 Spinning principle. Spinning press
Hot extrusion - a shaping process involving plastic deformation - consists in introducing a heated (350 to 500 ×C) block of aluminum or aluminum alloy metal (billet) into a hollow container, which is itself heated, and, by means of a piston, pushing the billet through the opening made in a shaping tool (die) closing off the other end of the container (figure 2 ). The pressure in contact with the metal (specific pressure) is of the order of 600 MPa.
The spinning press bed is rigidly connected by columns to the press pot. The latter is supplied with water or oil, at pressures of up to 30 MPa, by a set of pumps with...
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Technological aspects
Spinning conditions and possibilities
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"Metal forming and foundry"
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