The application discloses a thin-wall
pipe forming die and method, and relates to the technical field of aero-engines. The die comprises an upper die, a lower die and a support. The support and the lower die can move relative to each other to meet different disassembly and
assembly requirements. The forming method adopts the process of whole-plate blanking, edge rolling
butt welding, segmented and step-by-step
stamping, pressure maintaining and shaping and end
cutting. The application solves the problems of conventional split splicing
welding process, such as many welds,
large deformation, poor structural strength and low
processing efficiency. The application adopts the mode of segmented
stamping forming after whole-plate edge rolling
welding, cancels multi-segment split
welding, guarantees the integrity of the integrated structure of the gas film plate thin-wall
pipe, improves the overall strength,
pressure resistance and
fatigue resistance of the component, simultaneously simplifies the
processing procedure, reduces the production cost, and improves the
processing efficiency and the product yield.