Layup process for wind turbine blade manufacturing
AssigneeLm Wind Power A/S
InventorsHenrik Barslev, Ton Dobbe
Life of this patent
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Abstract
The present invention relates to a method of manufacturing a wind turbine rotor blade part comprising stacking a plurality of plies (70, 71, 72) to form a stack of plies (80) such that the stack of plies has at least one stepwise tapering edge (84, 85). A plurality of plastic fasteners (90) is used to interconnect the plies (70, 71, 72) by passing the plurality of plastic fasteners (90) through the stack of plies to form a stack of interconnected plies (82). The stacks of interconnected plies (82a, 82b, 82c, 82d) are arranged within the blade mold, followed by resin infusion into the one or more stacks of interconnected plies within the blade mold, and curing and/or hardening the resin in order to form the blade part.
Claims16
A method of manufacturing a wind turbine rotor blade part, the method comprising:
- stacking a plurality of plies to form a stack of plies such that the stack of plies has at least one stepwise tapering edge;
- providing a plurality of plastic fasteners, each plastic fastener of the plurality of plastic fasteners comprising an elongated filament with a first enlargement at a first end of the elongated filament and a second enlargement at an opposing second end of the elongated filament;
- interconnecting the plurality of plies of the stack of plies by passing the plurality of plastic fasteners through the stack of plies to form a stack of interconnected plies, wherein each of the plurality of plastic fasteners is passed through the stack of plies twice such that the first enlargement and the second enlargement are located at the same surface of the stack of plies;
- providing a blade mold defining an outer shape of at least a portion of the wind turbine rotor blade part;
- arranging the stack of interconnected plies within the blade mold;
- infusing resin into the stack of interconnected plies within the blade mold;
- and
- curing and/or hardening the resin to form the wind turbine rotor blade part.
A method of manufacturing a wind turbine rotor blade part, the method comprising:
- stacking a plurality of plies to form a stack of plies such that the stack of plies has at least one stepwise tapering edge;
- providing a plurality of plastic fasteners, each plastic fastener of the plurality of plastic fasteners comprising an elongated filament with a first enlargement at a first end of the elongated filament and a second enlargement at an opposing second end of the elongated filament;
- interconnecting the plurality of plies of the stack of plies by passing the plurality of plastic fasteners through the stack of plies to form a stack of interconnected plies;
- providing a blade mold defining an outer shape of at least a portion of the wind turbine rotor blade part;
- arranging the stack of interconnected plies within the blade mold;
- infusing resin into the stack of interconnected plies within the blade mold, wherein the plurality of plastic fasteners dissolve upon resin infusion into the stack of interconnected plies, and wherein the plurality of plastic fasteners comprise a thermoplastic polymer;
- and
- curing and/or hardening the resin to form the wind turbine rotor blade part.
Dependencies are inferred from the claim text.