Hydrostatic extrusion methods and apparatus

Details Hydrostatic extrusion methods and apparatus Hydrostatic extrusion methods and apparatus

1977-04-25

1978-06-27

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72 41, 72253R, 72467, B21C 2332

Patent

active

040967212

ABSTRACT:
The disclosure concerns methods and apparatus for forming an elongated product, having a high quality surface appearance and finish, from an elongated workpiece with a wax coating. The wax-coated, elongated workpiece is advanced toward, and then through, an aperture which extends longitudinally through a die, by an application of frictional drag forces, in the direction of the die, to the wax coating. The wax, however, does not pass through the die aperture, but rather is substantially completely removed from each successive element of the elongated workpiece, substantially as such element reaches the die.

REFERENCES:
patent: 56622 (1866-07-01), Shaw
patent: 1597927 (1926-08-01), Simons
patent: 2907454 (1959-10-01), Sejournet
patent: 2971644 (1961-02-01), Sejournet
patent: 3756054 (1973-09-01), Nilsson
patent: 3985011 (1976-10-01), Fuchs, Jr.

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