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Browse Prior Art Database

Magnetic Recording Head Process for Masking Slider Rails for Sandblasting

IP.com Disclosure Number: IPCOM000117830D
Original Publication Date: 1996-Jun-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Avina, R: AUTHOR [+3]

Abstract

Disclosed is a method by which a magnetic recording slider that is to be sandblasted to modify the curvature of the Air Bearing Surface (ABS) can be effectively masked to protect the rails and allow sandblasting in between the rails. Demonstrated is the use of a thin disposable mask made of stainless steel or similar metal or a durable polymer which is either pressed against or bonded to a row of sliders to effectively protect the ABS rails. Further discussion will speak to a metal mask but is intended to refer to any of the mask materials.

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Magnetic Recording Head Process for Masking Slider Rails for Sandblasting

      Disclosed is a method by which a magnetic recording slider that
is to be sandblasted to modify the curvature of the Air Bearing
Surface (ABS) can be effectively masked to protect the rails and
allow sandblasting in between the rails.  Demonstrated is the use of
a thin disposable mask made of stainless steel or similar metal or a
durable polymer which is either pressed against or bonded to a row of
sliders to effectively protect the ABS rails.  Further discussion
will speak to a metal mask but is intended to refer to any of the
mask materials.

      The thin sheet of metal must be held firmly against the row so
as to preclude migration of the sandblast material up onto the
surface of the ABS and subsequently scratching that surface.  Bonding
the mask to the row using a water soluble adhesive such as
Polyvinylalcohol (PVA) or other water soluble adhesive insures
intimate contact between the row and the mask.  The adhesive can be
applied to the surface of the row of sliders or the mask.  During the
sandblast process, the metal mask member tends to warp due to the
surface stress imparted by the sandblaster.  The described adhesive
prevents the metal material from warping away from the surface of the
row.  Subsequent to the sandblast operation, the mask is peeled away
from the surface of the row and the rows are cleaned using water.
The mask is then discarded.

      In the case w...