Creep age-forming experiment and springback prediction for AA2524
Creep age-forming (CAF) technology is a new forming method, which combined age hardening and creep forming processes into one. It is mainly used to manufacture wing panels. In this paper, a set of experimental device of creep age forming is developed and the influence of process parameters on the springback of artificially aged 2524 aluminium a alloys (AA lloys 2524) are investigated. The law of the comprehensive effect of aging time, aging temperature, elastic pre-deformation radius and work-piece thickness, on creep aging springback and mechanical properties of AA2524 is obtained. Based on multiple regression analysis, springback prediction model of process parameters is established and further proven experiments have then been carried out. The result shows that the maximum springback deviation between the experimental results and the prediction ones is within 9.5％. The accuracy of springback prediction model is validated, which provides a theoretical basis for process parameter optimization and springback prediction of CAF.
Creep age-forming Regression analysis Aluminium alloy mechanical properties
ZHAN Li-hua TAN Si-ge HUANG Ming-hui NIU Jie
State Key Laboratory of High Performance Complex Manufacturing, Central South University,Changsha, Hunan, 410083
国际会议
沈阳
英文
122-129
2011-11-22（万方平台首次上网日期，不代表论文的发表时间）