Process for producing magnetic hub

Details Process for producing magnetic hub Process for producing magnetic hub

1990-03-09

1991-06-04

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

294695, 298942, 29DIG29, 26427215, 264274, 369270, 369282, B22C 928, B23P 1904

Patent

active

050202073

ABSTRACT:
A process for producing a magnetic hub for an optical disc which is fixed to the spindle of a disc drive by means of a magnetic clamp system, which process comprises positioning and setting an annular metal plate composed of a ferromagnetic substance having burrs on one side thereof produced by punching in a mold and then injecting a resin into the mold.

REFERENCES:
patent: 4616278 (1986-10-01), Yamaguchi et al.
patent: 4785444 (1988-11-01), Nakane et al.

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