The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1991
Filed:
Jul. 31, 1989
John Foster, Avon, GB;
BAJ Limited, , GB;
Abstract
A process for the production by electrolytic or electroless deposition on a workpiece of a composite coating comprising a metal matrix containing particles is particularly suitable for workpieces of complex geometry or having abrupt changes of shape or sharp edges such as gas turbine blades. The process in which the particles are codeposited with the metal from a solution in which the particles are insoluble comprises inducing circulation generally upwards in one zone and generally downwards in a second zone, locating the workpiece in the second zone and rotating the workpiece about an axis having a horizontal component, the rotational cycle including periods of higher angular velocity and periods of lower angular velocity, preferably a stop/go cycle. Preferably, the workpiece is also rotated about a second axis which is non-parallel with and preferably perpendicular to the first.