COMPOSITE BLADING MEMBER AND METHOD FOR MAKING

• Main Authors: SUBRAMANIAN SURESH, MARUSKO MARK WILLARD
• Format: Patent
• Language: English
• Published: 31.01.2011
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

14 ABSTRACR COMPOSITE BLADTNG MEMBER AND METHOD FOR MAKING A COMPOSITE BLADING MEMBER (10) INCLUDES AN AIRFOIL (12) AND A BASE (20) OF COMPOSITE MATERIAL LAYERS (40) AND A PLATFORM (38) OF COMPOSITE MATERIAL LAYERS (40) INTERFUSED WITH THE AIRFOIL (12) AND BASE (20). THE PLATFORM (38) COMPRISES A PLATFORM SHELF (42) AND A PLURALITY OF SPACED-APART PLATFORM SUPPORTS (44,46) INTEGRAL WITH THE PLATFORM SHELF (42) AND INTERFUSED WITH SURFACES (26,28) OF THE BASE. SUCH BLADING MEMBER (10) WAS MADE BY PROVIDING A PARTIALLY CURED AIRFOIL-BASE PREFORM (36) AND A PLATFORM PERFORM (38), INCLUDING AN AIRFOIL SHAPED OPENING (43) THERETHROUGH AND 10 PREFORMS OF THE PLATFORM SUPPORTS (44,46). THE AIRFOIL-BASE PREFORM (36) WAS INSERTED THROUGH THE AIRFOIL SHAPED OPENING (43) WHEREBY COOPERATING SURFACES OF THE PLATFORM PERFORM (38) AND AIRFOIL-BASED PREFORM (36) WERE IN JUXTAPOSITION. THE PERFORMS (36,38) WERE HEATED TO PARTIALLY CURE THEM TOGETHER. THEN THEY WERE INTERFUSED WITH A BINDER COMPATIBLE WITH MATERIAL OF THE PREFORMS (36,38) UNDER CONDITIONS TO 15 SUBSTANTIALLY FULLY CURE THE STRUCTURES.