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Rolling Sphere Method for Texturing

IP.com Disclosure Number: IPCOM000105720D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Anger, F: AUTHOR [+3]

Abstract

A novel texturing technique is disclosed which provides controlled, well-defined texture patterns that will facilitate low-flying heads on textured disk surfaces. This is accomplished by means of a rolling sphere arrangement, producing a substrate topography consisting of uniform, circumferential, radial or arbitrary wave-like groves.

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Rolling Sphere Method for Texturing

      A novel texturing technique is disclosed which provides
controlled, well-defined texture patterns that will facilitate
low-flying heads on textured disk surfaces.  This is accomplished by
means of a rolling sphere arrangement, producing a substrate
topography consisting of uniform, circumferential, radial or
arbitrary wave-like groves.

      Fig. 1 shows a schematic of a device used to texture metal disk
substrates.  It is comprised of a freely rotating ball mounted at the
end of a stylus (detail A).  This is analogous to a common ball-point
pen.  A lubricant is supplied to the ball by fluid reservoir or by
pressure feed.  The assembly is applied to the rotating disk with
controlled or modulated loading to regulate texture depth while
actuated planar to the surface to produce the desired texture
pattern, (Fig. 2).  The technique involves no material removal or
abrasion.