Process and system of calculation for construction of dies for e

Details Process and system of calculation for construction of dies for e Process and system of calculation for construction of dies for e

1997-02-25

1999-02-16

Larsen, Lowell A.

Metal deforming

By extruding through orifice

Pressure or velocity conditioning

72467, B21C 2502

Patent

active

058709223

ABSTRACT:
A die for extruding solid aluminum profiles having variable thickness is defined with outlets and a bearing length which is constant throughout the profile. The flow of metal into the profile is defined by calculating an angle of entry of the metal at each point of the profile. The angle is a function of a ratio of a perimeter to the thickness of the profile at each point thereof. A feed chamber has at least one step with an interior edge. The interior edge defines the angle relative to the orientation of the profile.

REFERENCES:
patent: 2671559 (1954-03-01), Rosenkranz
patent: 2894625 (1959-07-01), Harris et al.
patent: 5095734 (1992-03-01), Asher

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