Method for manufacturing a magnetic head core with a flux gap ha

Details Method for manufacturing a magnetic head core with a flux gap ha Method for manufacturing a magnetic head core with a flux gap ha

1988-11-30

1990-07-24

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360120, 360127, G11B 542

Patent

active

049426583

ABSTRACT:
A process for assembling the I core and C core element of a ferrite magnetic transducer core includes the steps of depositing by sputtering a gap material on the gap face of one core element. A magnetic material of the type which can be bonded to ferrite by heat and pressure is then sputter deposited on the gap material. The surface of the magnetic material is then juxtaposed to the gap face of the other element and heat and pressure below a pint which may affect the ferrite's magnetic characteristics is used to diffusion bond the two elements to each other. It is possible to use a layer of Sendust Fe-Si-Al high permeability alloy or other high permeability material as the magnetic material deposited on the gap material if this enhancement of the core is desired. In any case, higher than customary clamping pressure along with lower than customary temperature is used to effect the bond.

REFERENCES:
patent: 3605258 (1971-09-01), Fisher et al.
patent: 4670972 (1987-06-01), Sakakima

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