Application of Viscous Pressure Forming in Aeronautics and Astronautics

Viscous pressure forming (VPF) is a new developed sheet soft-punch forming process in 1900s. The basic principle and characteristics of VPF are described. The applications of VPF technologies of nickel-based super-alloy corrugated thin-walled part, asymmetrical thin-wall part with variable diameter, super-alloy thin-walled part with variable diameters, corrugated thin-walled part with larger diameter and small section are presented. The results show that VPF is suitable for the forming of parts with high strength, low plasticity, super thin-wall and complex shaped.

Numerical Simulation and Process Analysis for Injection Forming about the Thin-Wall Conical Centrifugal Disc

A numerical simulation mathematical model and sloved method about injection forming for thin-wall part was established. Based on it, Simulation of the injection forming process of centrifugal separation disc. Through the simulation of forming process for PA66 and PA66+30%GF two kinds of materials, realized the injection forming for centrifugal separation disc using PA66+30%GF. Through the anisotropy of glass fiber orientation, improve the stiffness and toughness for centrifugal disc.