Browse Prior Art Database

Plating Fixture

IP.com Disclosure Number: IPCOM000075567D
Original Publication Date: 1971-Oct-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Brutsman, WC: AUTHOR [+5]

Abstract

Plating selected surface portions of an article by using a fixture that masks the surfaces which are not to be plated is described in the IBM Technical Disclosure Bulletin of January, 1969, at page 1045. The fixture illustrated provides the same function in a modified form.

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Plating Fixture

Plating selected surface portions of an article by using a fixture that masks the surfaces which are not to be plated is described in the IBM Technical Disclosure Bulletin of January, 1969, at page 1045. The fixture illustrated provides the same function in a modified form.

The fixture includes a box 10 constructed of dielectric and chemically nonreactive material, such as epoxy. Rigidly positioned within the box is conductive insert 12 which provides both cathodic contact and accurate positioning for a workpiece, such as magnetic head 14. Fluid tight electrical contact through box 10 to insert 12 is provided by electrode 16. A closure plate 18, having an opening 20 which corresponds to the to-be-plated surface portions of the workpiece, is constructed for attachment to box 10 by bolts 22. Plate 18 is constructed of a generally rigid and inert body portion 24, surrounded by resilient gasket portions 26 at areas where fluid tight contact to box 10 and workpiece 14 are required. As the fixture may be subjected to extremely corrosive fluids during plating operations, the gasket is preferably composed of a chemically resistant fluoroelastomer.

In operation, workpiece 14 is placed in box 10 where it is supported and positioned by insert 12. Plate 18 is fastened in place so as to make fluid tight contact with box 10 and workpiece 14, while exerting only vertical force on the workpiece. Cathodic contact is provided to the workpiece through electrode 16, ...