CERAMIC MATRIX COMPOSITE TURBINE BLADE SQUEALER TIP WITH FLARE

摘要

A method of forming a ceramic matrix composite turbine blade with squealer tip and with tip flare is provided. The tip flare may be located at either or both of the pressure side and the suction side. The method provides a mandrel which is placed in the pre-form tooling to create the cavity and aid in formation of the pressure side flare.

主权项

1. A method of forming a ceramic matrix composite (CMC) turbine blade having a squealer tip comprising:
forming a plurality of two dimensional ply shapes formed of pre-preg tape; laying out a first amount of the plurality of two dimensional ply shapes with a cavity of a tool to form the turbine blade; inserting a mandrel in the tool to form a squealer tip cavity and a tip flare on at least one of a pressure side or a suction side of the blade; laying out a second amount of the plurality of two dimensional ply shapes formed of pre-preg tape; closing the tool; and, inserting the tool in an autoclave to form the turbine blade.