CPC B29D 99/0028 (2013.01) [B29C 33/485 (2013.01); B29C 70/06 (2013.01); B29C 70/32 (2013.01); F03D 1/0675 (2013.01); B29L 2031/085 (2013.01); F05B 2240/302 (2013.01)] | 10 Claims |
1. A method for manufacturing a wind turbine blade, comprising:
a) arranging a fiber lay-up on a mandrel tool, the mandrel tool comprising a frame and, as seen in cross-section, at least two mandrel portions connected to the frame, and wherein at least a portion of the fiber lay-up is supported by an outer surface of the at least two mandrel portions,
b) reducing a cross-section size of the mandrel tool by retracting at least one of the at least two mandrel portions towards the frame,
c) arranging the mandrel tool inside adjacent blade sections,
d) increasing the cross-section size of the mandrel tool by extending at least one of the at least two mandrel portions away from the frame, and
e) infusing at least a portion of the fiber lay-up with a resin and curing the resin to obtain a cured joining portion joining the blade sections inside.
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