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Method for producing partially coated substrate in cylindrical wall of crankcase of internal combustion engine, involves applying a coating to two portions of substrate by thermal spray process and removing the coating from one portion
Method for producing partially coated substrate in cylindrical wall of crankcase of internal combustion engine, involves applying a coating to two portions of substrate by thermal spray process and removing the coating from one portion
The method involves applying a coating to the first and second portions (6,7) of a substrate (3) by a thermal spray process, and processing the coating in the second portion by spraying a high pressure fluid jet. The coating in the second portion is removed after processing, for exposing the second portion of the substrate. A web (9) is attached to a suction pipe (11) for removing the excess coating material from the cylinder (1). The web is removed by machining, after the removal of coating from the second portion.
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