[1] Ngaile, G., Gariety, M., Altan, T. Enhancing tribological conditions in tube hydroforming by using textured tubes, Journal of Tribology, 128, 2006, pp. 674-676.
[2] Siegert, K., Haussermann, M., Losch, B., Rieger, R. Recent developments in hydroforming technology, Journal of Materials Processing Technology, 98, 2000, pp. 251-258.
[3] Ahmetoglu, M., Altan, T. Tube hydroforming: state-of-the-art and future trends, Journal of Materials Processing Technology, 98, 2000, pp. 25-33
[4] Ahmetoglu, M., Sutter, K., Li, X.J., Altan, T. Tube hydroforming: current research, applications and need for training, Journal of Materials Processing Technology, 98, 2000, pp. 224-231.
[5] Jirathearanat, S., Hartl, C., Altan, T. Hydroforming of Y-shapes –product and process design using FEA simulation and experiments, Journal of Materials Processing Technology, 146, 2004, pp. 124-129.
[6] Liu, G., Yuan, S., Teng, B., Analysis of thinning at the transition corner in tube hydroforming, Journal of Materials Processing Technology, 177, 2006, pp. 688-691.
[7] Kridli, G.T., Bao, L., Mallick, P.K., Tian, Y. Investigation of thickness variation and corner filling in tube hydroforming, Journal of Materials Processing Technology, 133, 2003, pp. 287-296.
[8] Plancak, M., Vollertsen, F., Woitschig, J. Analysis, finite element simulation and experimental investigation of friction in tube hydroforming, Journal of Materials Processing Technology, 170, 2005, pp. 220-228.
[9] Jain, N., Wang, J. Plastic instability in dual-pressure tube hydroforming process, International Journal of Mechanical Sciences, 47, 2005, pp. 1827-1837.
[10] Mori, K., Maeno, T., Maki, S. Mechanism of improvement of formability in pulsating hydroforming of tubes, International Journal of Machine Tools & Manufacture, 47, 2007, pp. 978-984.
[11] Smith, L.M., Ganeshmurthy, S., Alladi, K. Double-sided high pressure tubular hydroforming, Journal of Materials Processing Technology, 142, 2003, pp. 599-608.
[12] Bunget, C., Ngaile, G. Microforming and Ultrasonic Forming, Report MF-MAE-NG-06-R-1, Department of Mechanical and Aerospace Engineering, North Carolina State University, 2006.
[13] Murakawa, M., Jin, M. The utility of radially and ultrasonically vibrated dies in the wire drawing process, J. Mater. Process. Technol., 113, 2001, pp. 81-86.
[14] Hayashi, M., Jin, M., Thipprakmas, S., Murakawa, M., Hung, J.C., Tsai, Y.C., Hung, C.H. Simulation of ultrasonic-vibration drawing using the finite element method (FEM), J. Mater. Process. Thecnol., 140, 2003, pp. 30-35.
[15] Siegert, K., Ulmer, J. Superimposing Ultrasonic Waves on the Dies in Tube and Wire Drawing, J. Eng. Mater. Technol., 123, 2001, pp. 517-523.
[16] Huang, Z., Lucas, M., Adams, M.J. Modeling wall boundary conditions in an elasto-viscoplastic material forming process, J. Mater. Process. Technol., 107, 2000, pp. 267-275.
[17] Huang, Z., Lucas, M., Adams, M.J. Influence of ultrasonic on upsetting of a model paste, Ultrasonic, 40, 2002, pp. 43-48
[18] Loh-Mousavi, M., Mori, K., Hayashi, K., Maki, S., Bakhshi, M. 3-D finite element simulation of pulsating T-shape hydroforming of tubes, Key Engng. Mater., 340, 2007, pp. 353–358.
[19] Hama, T., Asakawa, M., Fukiharu, H., Makinouchi, A. Simulation of hammering hydroforming by static explicit FEM, ISIJ Int., 44(1), 2004, pp. 123–128.
[20] Zarei, M., Farzin, M., Mashayekhi, M. Investigations on the ultrasonic assistance in the tube hydroforming process, Journal of Applied and Computational Mechanics, DOI: 10.22055-/jacm.2017.21474.1102
[21] Bunget, C., Mechanics of Ultrasonic Tube Hydroforming, Ph.D. Dissertation, North Carolina State University, 2008.