Electromagnetic compacting of powder metal for ignition core app

Powder metallurgy processes – Forming articles by uniting randomly associated metal particles – Powder pretreatment

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419 65, 419 66, B22F 102

Patent

active

061562645

ABSTRACT:
Disclosed is a process for producing an AC cylindrical electromagnetic ignition coil core (28) comprising:
filling a cylindrical holding container (20) with powdered metal;
placing the filled container into an electromagnetic field and compacting, in the radial direction, the powder in the container by subjecting the powder to the electromagnetic field; and
recovering the compacted ignition coil core (28).

REFERENCES:
patent: 5002727 (1991-03-01), Okimoto et al.
patent: 5211896 (1993-05-01), Ward et al.
patent: 5250255 (1993-10-01), Sagawa et al.
patent: 5405574 (1995-04-01), Chelluri et al.
patent: 5472661 (1995-12-01), Gay
patent: 5629092 (1997-05-01), Gay et al.

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