Patent ID: 8172538

Claim:
A method of manufacturing a wind turbine blade shell member with a fastening member provided near a root end of the wind turbine blade shell member, the fastening member being suitable for connecting a wind turbine blade comprising said wind turbine blade shell member to a wind turbine hub, the method comprising the steps of: providing a rigid outer mould; positioning the fastening member near the end of the rigid outer mould corresponding to the root end of the wind turbine blade; positioning at least two layers of pre-fabricated sticks near the end of the rigid outer mould corresponding to the root end of the wind turbine blade such that pre-fabricated sticks surround a substantial longitudinal part of the fastening member when the fastening member is positioned in the wind turbine blade shell member; positioning one or more layers of pre-fabricated sticks in a substantial longitudinal part of the rigid outer mould; thereafter providing an inner mould in vacuum-tight connection with the rigid outer mould; evacuating the volume between the outer and the inner moulds, infusing a curable resin to secure the fastening member to the enclosing pre-fabricated sticks and substantially fill empty space between adjacent sticks, and allowing the resin to cure; de-moulding the wind turbine blade shell member.