Transactions of Materials and Heat Treatment

Title：Research on hydraulic forming loading paths of aluminium alloy anti-collision energy-absorbing tube

Authors： WANG Qi-chao LEI Jun-xiang LUO Xie-hai

Unit： University of Shanghai for Science and Technology

KeyWords： anti- collision energy-absorbing tube hydraulic pressure bulging： loading paths finite element simulation

ClassificationCode：TG394；TP311

year,vol(issue):pagenumber：2011,36(6):55-58

Abstract：

According to the need of the double diameter tube part forming, the axial feeding compensation and hydraulic pressure loading control to the hydraulic bulging process of aluminium alloy 6061 tube were put forward. By numerical simulation method and the analysis software ABAQUS 610 ， aluminum alloy 6061 tube hydraulic bulging loading paths were studied. Taking eventual thickness distribution of the forming parts and forming failure control as the basis, the axial feeding and liquid pressure loading path on forming quality was analyzed. Research shows that when the axle feeding rate is 27 mm and hydraulic pressure is 85 MPa, the max thinning rate of the anti-collision energy-absorbing tube is 205%, the quality of parts is nice and the forming of S shape transition region in a pair of mould can be finished.

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