Abstract
Radially extruded tubular components are adopted for the deformation analysis by rigid-plastic finite element method. FE Simulations were conducted to investigate the influence of different geometric parameters and process condition, such as the ratio between inner and outer diameter of tubular components, gap height, die corner radius and friction factor, on metal flow into radial direction. The results of the simulations are discussed in terms of separation length, defined as the length that the material flow is separated away from the die in gap height, and maximum force requirements for the radial forming process. Furthermore the pressure distributions exerted on the die-wall interfaces and deformation pattern was shown to obtain the features in producing sound radial extruded components. Finally some guidelines for basic design data in the radial extrusion process due to this simulation work might be drawn up.
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