MANUFACTURE OF FILLED AEROFOIL

摘要

A method of manufacturing a filled aerofoil component (100) for a gas turbine engine (10) comprises using a capping panel (200) to cover a pocket (310) in a pocketed aerofoil body (300). During manufacture, a pre-formed filler insert (400) is provided to support the capping panel (200) in the correct position. This ensures that the outer surface of the capping panel (200) is located as accurately as possible. This means that the capping panel (200) can be made to be as thin as possible, which in turn reduces weight and material wastage. The pre-formed filler insert (400) provides a lightweight core for the finished aerofoil component in use.

主权项

1. A method of manufacturing an aerofoil having a filled cavity, the method comprising:
providing a pocketed aerofoil body having an open pocket formed in a surrounding hollowed surface; inserting a pre-formed filler insert into the open pocket; locating a capping panel over the open pocket, the capping panel having an inner surface and an opposing outer surface; supporting the inner surface of the capping panel on the filler insert such that the capping panel is in a capping position; and forming a permanent joint between the capping panel and the pocketed aerofoil body so as to fix the capping panel in position relative to the pocketed aerofoil body, thereby producing the aerofoil having a filled cavity.