The bearing-less composite tail rotor is one of the most important components of helicopters

and their manufacturing quality directly affects their service life

but the traditional handmade manufacturing technology is far from meeting the current requirements. This paper studies the exiting automatic manufacturing technology of composite tail rotors

and in the forming process of the flexible beam of the tail rotor

the self heating and self pressurization molding system is used to determine the time of the pressure according to the viscosity of the resin

and the perfect manufacturing of the flexible beam of tail rotor blade is realized. The stability of the tail rotor blade manufacturing is ensuring by using automatic heating and boring process in assembling

and the qualification rate of the product is greatly improved. At the same time

combined with the current situation

the development direction of tail rotor blade manufacturing technology is briefly described.