Method of producing magnetic head core having magnetic gap and n

Details Method of producing magnetic head core having magnetic gap and n Method of producing magnetic head core having magnetic gap and n

1993-02-16

1994-03-29

Powell, William

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156645, 156654, 156655, 156667, 21912169, 29603, B44C 122

Patent

active

052981134

ABSTRACT:
A method of producing a magnetic head core having a coil-winding groove around which an annular magnetic path is formed, and a magnetic gap intersecting the magnetic path, and a track having a predetermined track width and extending in a direction perpendicular to the magnetic gap, the magnetic gap and track being formed in a medium-sliding surface of the head core. The method includes the steps of: forming a track precursor in a surface of a core body which gives the medium-sliding surface of the head core, the track precursor having a larger width than a predetermined track width, and extending across the magnetic gap in a longitudinal direction of the core body; and pressing a shearing tool against the track precursor, and applying a force to the shearing tool to thereby remove by shearing at least one of widthwise opposite portions of the track precursor adjacent to the magnetic gap, so as to form the track having a predetermined track width in the vicinity of the magnetic gap.

REFERENCES:
patent: 4017965 (1977-04-01), Brutsch et al.
patent: 5072322 (1991-12-01), Yasar et al.
Patent Abstracts of Japan, vol. 16, No. 199 (P-1351) May 13, 1992.
Patent Abstracts of Japan, vol. 9, No. 97 (P-352) Apr. 26, 1985.
Patent Abstracts of Japan, vol. 13, No. 180 (P-864) Apr. 27, 1989.
Patent Abstracts of Japan, vol. 10, No. 210 (P-479) Jul. 23, 1986.

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