On the Analysis of the Expansion and Reduction of Thin-Walled Tubes Using a Die:

摘要: AbstractThe production of sound thin-walled tubular parts by expansion and reduction using a die is generally limited to components having geometrical features within compact range. Basic design rules, relevant process are mainly derived from the accumulated experience both manufacturers suppliers machine tools. However, gaps knowledge can still be found in understanding influence parameters on material flow providing an adequate description modes deformation that associated with formability limits induced ductile fracture, wrinkling, buckling. The aim present paper extend actual tubes means comprehensive theoretical experimental investigation. investigation supported axisymmetric three-dimensional numerical simulations based finite element formulation. work, p...