EQUIPMENT FOR ATTACHING A METAL REINFORCEMENT ONTO THE LEADING EDGE OF A TURBINE ENGINE BLADE AND METHOD UTILIZING SUCH EQUIPMENT Russian patent published in 2018 - IPC B29C65/78 F01D5/28 F01D5/14 

FIELD: motors and pumps.

SUBSTANCE: equipment for attaching the metal reinforcement onto the leading edge of the turbine engine blade comprises a blade mounting and a mounting for reinforcing the leading edge. Blade mounting is adapted to receive a blade therein, while the surfaces of the leading edge of the blade remain open. Leading edge reinforcement holder is configured to receive a blade holder thereon and comprises two side pads arranged to interpose the metal reinforcement of the leading edge of the blade between them. Pads are designed to slide and move apart relative to each other and are equipped, each with a suction grille to ensure the retention of the metal reinforcement. Leading edge reinforcement holder further comprises heating elements for providing polymerization of the adhesive film applied on the surface of the leading edge of the blade when it is located on the metal reinforcement, and the shoulders forming the travel stops configured to come into position on the blade, on the blade holder or on the liners during their shifting. To fix the metal reinforcement at the leading edge of the turbine engine blade with the above-mentioned tool, first position and fasten the blade in the blade holder of the tool and apply glue to the exposed surfaces of the leading edge of the blade. Metal reinforcement is then positioned and retained in the tool mounting of the leading edge of the tool. Metal reinforcement is positioned on the leading edge of the blade by mounting the blade mounting on the leading edge reinforcement holder. Pressure is applied to the wings of the metal reinforcement and the adhesive applied to the exposed surfaces of the leading edge of the blade is polymerized with the help of the heating elements of the leading edge reinforcement mounting. Another invention of the group relates to the use of the above-described fastening method for securing the metal reinforcement on the leading edge of the turbine fan blade.

EFFECT: group of inventions makes it possible to simplify the manufacture of a gas turbine engine blade with metallic reinforcement of the leading edge, and also to improve the accuracy of manufacturing such a blade.

13 cl, 18 dwg