Process for depositing a coating on a bore of a mechanical part by a process by dynamic spraying by cold gas

摘要

The invention relates to a process for depositing a coating (11) in a bore of a mechanical part by Cold Spray process (1). According to the invention, the method comprises the following steps:-a step of mixing a powder comprising metal or polymer particles in order to produce a metal or polymer matrix, hard ceramic particles and particles of solid lubricants,- a step of cold dynamic spraying of the powder implemented in the previous step on the bore of the mechanical part (1), and deposition of a coating (11) on said bore resulting from the sprayed powder. Figure for abstract: Fig.1