6PHY G.Pressure-sequenee and high-pressure hydroforming [ J ]. Tube and Pipe Journal, 1998, 2 (1) : 128-135.
7AHMETOGLU M, ALTAN T.Tube hydroforming:state-of-theart and future trends[J].Journal of Material Procession Technology, 2000, 98: 25-33.
8WANG Y M, ALTAN T.Finite element analysis of tubehydroforming process in a rectangular die[J].Finite Element in Analysis and Design, 2002, 39:1071-1082.
9Thiruvarudchelvan S, Wang H B. Pressure generated in the hydraulic - pressure augmented deep-drawing process[ J]. Journal of Materials Processing Technology, 1998,74( 3 ) :286 - 291.
10Li L,Zhou J, Duszczyk J. Determination of a constit-utive relationship for AZ31B magnesium alloy and validation through comparison between simulated and real extrusion [ J]. Journal of Materials Process- ing Technology ,2006,172 ( 8 ) :372 - 380.