Hydroforming is an effective method for manufacturing thin-walled parts.In order to develop a forming process of complicated thin-walled circular superalloy parts with irregular section,a technology scheme is proposed consisting of hydroforming with axial feeding by using moving dies.Meanwhile,an analysis is made of stress characteristic and strain state based on plasticity method and incremental theory,and its finite element models are built.The effect of the key process parameters,including the height of ...