gh Payganeh - Department of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Tehran, Iran
j Shahbazi Karami - Department of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Tehran, Iran
k Malekzadeh Fard - Space research institute, ۲۶th Kilometer of Expressway of Tehran-Karaj, Tehran, Iran

In this paper, single, bi-layered and three-layered tube hydroforming processes were numerically simulated using the finite element method. It was found thatthe final bulges heights resulted from the models were in good agreement with the experimental results. Three types of modeling were kept with the same geometry, tube material and process parameters to be compared between the obtained hydroformed products (branch height, thickness reduction and wrinkling) using different loading path types. The results were also discussed

Tube hydro forming,Finite element simulation, Finite element comparison, Three-layered tube hydroforming