Backstrike protection during machining of cooling features

摘要

A method of machining a component is provided. The component includes a substrate having an outer surface and an inner surface, where the inner surface defines at least one interior space. A core is disposed within each interior space. The method includes forming at least one hole in the substrate while the core is disposed within the respective interior space. Each hole extends through the substrate to provide fluid communication with the respective interior space. The method further includes removing the core from the respective interior space. The core may be a casting core or a subsequently formed core.

主权项

1. A method of machining a component comprising a substrate having an outer surface and an inner surface, wherein the inner surface defines at least one interior space, and wherein a core is disposed within each interior space; the method comprising:
casting the substrate around a casting core; removing the casting core from the respective interior space; disposing a subsequently formed core within the respective interior space by at least partially filling the at least one interior space with a cement slurry and at least partially curing the cement slurry to form the subsequently formed core; forming at least one hole in the substrate, while the subsequently formed core is disposed within the respective interior space, wherein each hole extends through the substrate to provide fluid communication with the respective interior space; and removing the subsequently formed core from the respective interior space.