Method for controlling room-temperature forming springback defect of TC1 large-curvature titanium alloy half tube

The invention discloses a room-temperature forming springback defect control method for a TC1 large-curvature titanium alloy half tube. The room-temperature forming springback defect control method comprises the steps that a half-wheel drawing forming body is constructed; the half-wheel drawing forming body is unfolded to form an unfolded blank; a semi-circular stamping body is constructed; a female die, a male die and a blank holder of the drawing die are manufactured according to the semi-management theory drawing forming body; according to the semi-management theory stamping body, a shape correction stamping die is manufactured; a laser cutting jig for manufacturing a half-tube according to a half-tube theoretic stamping body; blanking is conducted; drawing and pre-forming on a drawing die; stress relief annealing; stamping and sizing are carried out on a sizing stamping die; carrying out laser cutting on the semi-tube final formed body on a laser cutting clamp; and trimming the shape of the final half-tub