METHOD FOR MANUFACTURING THREE-DIMENSIONALLY TWISTED ROTOR BLADE AIRFOIL

摘要

In the manufacture of a three-dimensionally twisted airfoil of a rotor blade, a fibre strand 9 is continuously impregnated with resin material, pressed by roller 11 on to an airfoil surface 1 and immediately precured at 15. The method permits the fast, simple and fully automatic manufacture of airfoils. The precuring device 15 may be an infrared radiator. The strand may be looped around nipples on a blade root. The winding device may be a six-axis robot. The precured airfoil is cured in a mould.