摘要:
Method for manufacturing at least one preform element (7) for a blade (2) for a wind turbine (1), wherein a mat-like preform component (19) with a curable binding agent or a stack (22) with at least one mat-like preform component (19) with a curable binding agent is arranged in at least one vacuum bag (32, 41) which is arranged in a shape-giving cavity (29), wherein the cavity (29) is constituted by a lower mold surface (15) of a lower mold (12) and an upper mold surface (27) of an upper mold (26), wherein a bag vacuum is established in the vacuum bag (32, 41) and a holding vacuum is established between the vacuum bag (32, 41) and the upper mold surface (27), wherein the upper mold (26) and the at least one vacuum bag (32, 41) which is held to the upper mold (26) by the holding vacuum are lifted away from the lower mold (12), wherein the at least one preform component (19) is cured by activating the binding agent to conserve its shape.
摘要:
There is provided a method of manufacturing a fabric structure (30) for use in manufacturing a composite aircraft blade. The method comprises: combining yarns including both reinforcing material filaments (22) and a matrix material with yarns of reinforcing material filaments (24) and/or yarns including at least one filament of matrix material; or by combining yarns of reinforcing material filaments with yarns including at least one filament of matrix material; or by combining yarns each comprising both reinforcing material filaments and matrix material. Combining may comprise weaving, knitting or braiding. The matrix material may be a thermoplastic. Also provided is a fabric structure for the manufacture of a composite aircraft blade (40). Furthermore, a method of manufacturing a composite aircraft blade is provided, the method comprising: placing such a fabric structure in a mold; thermoforming the fabric structure within the mold including applying a cycle with different temperatures and/or pressures to the mold to consolidate the fabric structure into a composite part and cooling the composite part within the mold to below the glass transition temperature of the matrix material, thereby forming a composite aircraft blade; and removing the composite aircraft blade from the mold. A composite aircraft blade manufactured by such a method is also provided.
摘要:
A propeller blade (2) comprises a fibre reinforced blade structure spar (8) having a blade retention section (8) formed at one end thereof, and at least one metallic formation (22, 24; 26) spray deposited onto said blade retention section (6).
摘要:
A blade mould (70) and a method for manufacturing a blade shell part (24,26) of a wind turbine blade (10) is disclosed. The blade mould comprises a first mould frame (72); a mould shell (74) supported by the first mould frame and provided with a moulding surface (76) that defines an outer shape of the blade shell part, wherein the mould shell has a longitudinal direction and comprises a root end mould part (78) at a first end thereof; and a first deformation device (80) for deforming the root end mould part of the mould shell. The method comprises arranging reinforcement material on the moulding surface of the root end mould part; deforming the root end mould part to a receiving configuration; inserting the root end insert (106) in the root end mould part; and bringing the root end mould part to a moulding configuration.
摘要:
The present disclosure relates generally to the field of fan blade platforms for gas turbine engines. More specifically, the present disclosure relates to a compressed chopped fiber fan blade platform for a gas turbine engine.