| 摘要 |
A method of forming a hollow component with an internal structure from first and second panels (2,4) is disclosed. The method first comprises forming at least one protrusion (6,54) on a surface of at least one of the first and second panels (2,4) by a material deposition process (8,60). The first and second panels (2,4) are then assembled into a preform (14), the panels being oriented such that each panel (2,4) defines an interior and an exterior facing surface, with the at least one protrusion (6,54) extending from an exterior facing surface of a panel (2,4). The preform (14) is then expanded against a die, such that the at least one protrusion (6,54) is transferred from the exterior surface of a panel (2,4) to the interior surface of a panel (2,4) so as to define an internal structure. Forming the at least one protrusion (6,56) may comprise encapsulating an elongate member (50) on the surface of a panel (2,4) by a material deposition process (8,60).
An aerofoil and a gas turbine engine comprising such aerofoil are also disclosed. |
