The invention discloses a
spinning machining method for an
aluminium alloy thin-walled revolution body. The
spinning machining method comprises the following steps: producing an
aluminium alloy spun blank with required dimensions, and carrying out annealing treatment on the
aluminium alloy spun blank; carrying out shearing
spinning on the
aluminium alloy spun blank to obtain a primary conical
barrel; carrying out annealing treatment on the primary conical
barrel, and
cutting a process allowance at a large end to form a secondary conical
barrel; carrying out common spinning on the secondary conical barrel on a spinning
machine to obtain a pre-spun
aluminium alloy thin-walled revolution body; and carrying out annealing treatment and surface
polishing treatment on the pre-spun blank, and then
cutting process allowances at the two ends of a spun part by using a
plasma cutting machine, so as to obtain the
aluminium alloy thin-walled revolution body meeting
process requirements. According to the invention, the aluminium alloy thin-walled revolution body is machined by virtue of the technologies of shearing spinning and common spinning; the dimension and structural performance requirements of a bullet shell are met; a
machining method and a
stamping-
welding method can be replaced; and a low-cost and efficient machining method is provided for machining for an aluminium alloy shell of a bullet.