Mass producing magnetic head cores with cant angles

Details Mass producing magnetic head cores with cant angles Mass producing magnetic head cores with cant angles

G - Physics

11

B

352/29.7

G11B 5/187 (2006.01)

Patent

CA 1112358

MASS PRODUCING MAGNETIC HEAD CORES WITH CANT ANGLES Abstract A method for batch fabricating magnetic heads with a desired cant angle in the transducing surface of the magnetic core. The cant angle reduces the "Minor Bit" phenomenon. The two parts of the core which require the cant angle are mounted on a fixture so that a grind wheel is simultaneously in contact with both parts. Materials are simultaneously subtracted (i.e., grind away) from both parts to create mirror images at the surfaces which adjoin the grind wheel. The surfaces are then cleaned and glassed to provide a core bar with intimate fit. The core bar is diced into individual cores and is lapped to size. The individual cores are then fitted into a slider assembly to form the magnetic head.

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