Process for the manufacture of a blade/vane of a turbomachine
AssigneeRolls-Royce Deutschland Ltd & Co KG
InventorKarl Schreiber
Life of this patent
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Abstract
In a process for the manufacture of a blade/vane of a turbomachine, the blade/vane is made of a metallic enveloping structure and a supporting structure made of composite material provided inside of the enveloping structure and suitably joined to the enveloping structure. A metal-felt weave is welded or soldered/brazed to the sheet making up the enveloping structure, whereupon this sheet-weave-assembly is shaped by hydroforming or an internal high-pressure forming process to provide the enveloping structure of the blade/vane. Finally, the composite material making up the supporting structure is introduced into the cavity of the enveloping structure.
Claims6
A process for manufacturing a blade/vane of a turbomachine, the blade/vane comprising a metallic enveloping structure and a composite material supporting structure which is inside of and suitably joined to the enveloping structure, comprising:
- joining a metal-felt weave by at least one of welding, soldering and brazing to a sheet of the enveloping structure, and
- shaping the resulting sheet-weave-assembly by at least one of hydroforming and internal high-pressure forming to provide a desired shape of the enveloping structure, and
- subsequently introducing the composite material for the supporting structure into a cavity of the enveloping structure.
Dependencies are inferred from the claim text.