Metal deforming – By extruding through orifice – By rotating impeller means
Patent
1984-06-13
1986-01-28
Larson, Lowell A.
Metal deforming
By extruding through orifice
By rotating impeller means
72342, 29434, 425376B, 425378R, B21C 2300, B21D 3716
Patent
active
045663033
ABSTRACT:
Conform machinery for continuous friction-effected extrusion having a wheel comprising two cheek members, a central hub which forms the base of the working passageway and two separate ring members which form the side walls of the working passageway and provide slip surfaces between the cheek members and the rings. The abutting slip surfaces of the cheek members and rings are shaped to allow thermal expansion of the rings relative to the cheek members with the slip surfaces in driving engagement but to limit radial movement in a radial direction at any particular place on the circumference to a distance less than the relative expansion in the diameter of the ring between ambient temperatures and the expected working conditions of the machine.
REFERENCES:
patent: 338783 (1886-03-01), Ritchie
patent: 2363526 (1944-11-01), Hobbs
patent: 3656784 (1972-04-01), Dow et al.
patent: 4468945 (1984-09-01), Fairey
BICC Public Limited Company
Larson Lowell A.
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