Magnetic head and method of fabricating the same

Details Magnetic head and method of fabricating the same Magnetic head and method of fabricating the same

1978-03-08

1981-01-13

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360122, G11B 512, G11B 522

Patent

active

042452694

ABSTRACT:
A magnetic head comprising half-cores separated by a non-magnetic layer forming a working gap of the head. The line of intersection of the outer faces of the half-cores and the working surface of the magnetic head is represented by a smoothly varying curve characterized by a specific function causing a monotonically decreasing variation of the integral magnetic conductivity along the generating line of the working surface of the head as measured from the plane of the working gap of the head. In accordance with a method of fabricating the magnetic head, each half-core is machined by a shaped abrasive wheel so as to remove a portion of the body of the half-core in the zone where it is aligned with the working surface of the magnetic head on the side opposite the plane of the working gap of the head. The axis of revolution of the abrasive wheel is caused to move reciprocally at a certain angle to the plane of the working gap and is displaced during each such reciprocal pass by the cutting depth towards the half-core. The recesses formed in the course of removal of the portion of the body of each half-core are filled with a non-magnetic adhesive material.

REFERENCES:
patent: 2868889 (1959-01-01), Patterson
patent: 2902544 (1959-09-01), Barry
patent: 2931864 (1960-04-01), Moehring et al.

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