Helicopter blade mandrel with roller assembly

Details Helicopter blade mandrel with roller assembly Helicopter blade mandrel with roller assembly

2008-01-25

2011-11-29

Banks, Derris (Department: 3729)

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Shaping surfaces per se

C029S428000, C029S897200

Reexamination Certificate

active

08066504

ABSTRACT:
Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of components that are assembled and held in place using a roller assembly. The roller assembly is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly is removed, the remaining mandrel components can be separated from each other and easily removed from the spar. The mandrel components, including the roller assembly, can then be re-assembled and re-used to form additional composite spars.

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