Method for producing anisotropic rare earth magnet

Details Method for producing anisotropic rare earth magnet Method for producing anisotropic rare earth magnet

1993-04-06

1994-08-30

Walsh, Donald P.

Powder metallurgy processes

Forming articles by uniting randomly associated metal particles

419 12, 419 65, 419 67, 420 83, 148101, B22F 500

Patent

active

053425740

ABSTRACT:
A method for producing an anisotropic rare earth magnet is improved by extruding using a compacted material formed in a shape having difference in level between the center part to be in contact with the end face of a punch and the outer peripheral part to be faced with a molding cavity formed between the punch and a cylindrical die of a mold.

REFERENCES:
patent: 4325757 (1982-04-01), Jandeska, Jr. et al.
patent: 4963320 (1990-10-01), Saito et al.
patent: 5004580 (1991-04-01), Matsuo et al.
patent: 5039292 (1991-08-01), Tanigawa et al.
patent: 5084115 (1992-01-01), Hadjipanayis et al.
patent: 5122319 (1992-06-01), Watanabe et al.

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