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Method and apparatus for removing a predetermined amount of material from a bottom portion of a dovetail slot in gas turbine engine disk

Image Number 4 for United States Patent #6780089.

A system and method of removing a predetermined amount of material from a bottom portion of a dovetail slot in a gas turbine engine disk, including the steps of configuring a designated flow path through the dovetail slot and providing a flow of abrasive media through the flow path a designated number of cycles so that a substantially uniform amount of material is removed from the dovetail slot bottom portion. The method also includes the step of sealing a pressure surface of the dovetail slot to prevent the abrasive media from flowing thereagainst.

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