Forging method of TC4 titanium alloy large-specification rods

The invention discloses a forging method of TC4 titanium alloy large-specification rods. TC4 cast ingots are selected; TC4 are drawn to deform according to a deformation of 40-60%, and are broken to obtain multiple forgings; second heating-number forging and third heating-number forging are performed on each forging; one-upsetting and one-drawing deformation is performed on each forging in secondheating-number forging and third heating-number forging; fourth heating-number forging is performed on each forging; one-upsetting and one-drawing deformation is performed; the forgings are rounded asrods of phi 200-phi 220 mm; fifth heating-number forging is performed on each rod of phi 200-phi 220 mm; and the rods are drawn to deform according to a deformation of 40-60%, and are rounded to formrods of phi 120 mm. The one-upsetting and one-drawing operation is adopted to replace traditional three-upsetting and three-drawing operation, so that the operation is simplified, the production costand the material loss are r