Prediction strategy for the forming and stuffing of non-circular tube

Abstract The manufacturing of exhaust filter systems for cars typically comprises the forming a tube and later stuffing formed product with ceramic monolith an elastomer mat filtration. It is shown, that oval tubes process leads to inhomogeneous deformation final wherefore it must be considered when designing tools step. high number iterations tool design can hence reduced. Additionally, under certain conditions, necessity simulating shown no longer given. reason this during step, plastic introduced in tubes. Consequently, history, including local strain residual stress distributions, do not need explicitly considered. A simplified methodology presented based on these findings, which find required cross-section geometry entering process. goal previous therefore produce exactly geometry, done using conventional planning approaches.