Method and apparatus for the pressing and alignment of radially

Details Method and apparatus for the pressing and alignment of radially Method and apparatus for the pressing and alignment of radially

1985-03-21

1986-06-03

Lechert, Jr., Stephen J.

Powder metallurgy processes

Forming articles by uniting randomly associated metal particles

Consolidation of powders

419 38, 419 49, 29607, 100 3, 148108, 266249, B22F 500

Patent

active

045928894

ABSTRACT:
A method and apparatus for pressing magnetic powder in a toroidal-shape we in a radial magnetic field. A magnetic flux is produced and carried by a die rod through the axial center of toroidally-shaped magnetic powder. An annular portion coaxially surrounding the die rod and magnetic powder is connected to a yoke member which carries the magnetic flux back to the magnetic flux producing means. This completes the magnetic circuit, and creates a radial magnetic field across the toroidally-shaped magnetic powder between the die rod and the annular portion. This radial magnetic field aligns the granules of the toroidally shaped magnetic powder during pressing.

REFERENCES:
patent: 3244782 (1966-04-01), Eyberger
patent: 3969456 (1976-07-01), Graf et al.
patent: 4104782 (1978-08-01), Veeck et al.
patent: 4197146 (1980-04-01), Frischmann
patent: 4390488 (1983-06-01), Wessel

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