Simulation of wear of tape head contours

Author

Lacey, Christopher ; Talke, F.E.

Author_Institution

Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2554

Lastpage

2556

Abstract

A procedure whereby head wear can be numerically simulated is described. Wear is assumed to be proportional to a material constant times the contact pressure. Based on this assumption, the change in head contour due to wear is calculated in incremental steps starting from any initial contour. Simulation data are compared to an experimental measurement of head contour change due to wear. It is noted that the simulation of mechanical wear allows the evaluation of head geometries for their performance after wear. Wear of composites can be modeled with the simulation as well as preferential wear of thin-film head elements. Additionally, the model gives insight into the final lapping process for head manufacture

Keywords

magnetic heads; magnetic tape equipment; wear; composites; contact pressure; flying height; head geometries; head wear; lapping process; mechanical wear; model; numerical simulation; preferential wear; tape head contours; thin-film head elements; Abrasives; Equations; Geometry; Lapping; Magnetic heads; Magnetic recording; Microscopy; Numerical simulation; Predictive models; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179554

Filename

179554