| 摘要 |
An integral turbine blade spar is forming using a male mould 20 with root end cavities 22 spaced about one end of the mould. A first plurality of layers 25 of resin impregnated fibres are applied to the male mould. A plurality of bushes 26 are fitted to a former 23, spaced at intervals corresponding to the recesses. The former 23 is fitted to the male mould 20 with the bushes aligned with and in contact with the recesses and a second plurality of layers 29 of resin impregnated fibres are applied over the first layers and the bushes. Strips 30 may be fitted into the spaces between bushes before the spar is optionally vacuum bagged and then cured. The formed product is cured and removed from the mould and the former 23 is disconnected from the bushes 26. |
