Forming method of aircraft oil transportation half-pipe part

The invention discloses a forming method of an aircraft oil transportation half-pipe part, which comprises the following steps: S1, carrying out laser cutting on a plate according to a set size to obtain a required plate blank; s2, the obtained plate blank is subjected to primary liquid filling and deep drawing, so that a preset large-curvature semi-bent pipe part is formed; s3, a positioning hole used for positioning the large-curvature half-bent pipe part in the next step is punched in the upper end face of the obtained large-curvature half-bent pipe part; s4, the obtained large-curvature semi-bent pipe part with the positioning hole is subjected to final liquid filling and deep drawing, so that a preset small-curvature semi-bent pipe part is formed; and S5, redundant materials of the obtained small-curvature half-bent pipe part are cut off, so that the needed aircraft oil transportation half-pipe part is obtained. According to the manufacturing method, the technological forming thought that a large ladle i