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Abstract：
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The main problem in bending process of sheet metal is that it is difficult to control bending springhack accurately. Springback produced from the unloading of bending makes the shape and size incongruent between bending workpiece and working portion of die.The final shape of bending workpiece is related with the whole deformation process,the geometric pa- rameter of die,material performance parameter will have great effect on springbaek.It is the key to the success of intelligent control and the degree of the control precision that confirms well the input and output parameters of the model of real-time i- dentification and prediction in the bending intelligent control system of sheet forming.Using La-dyna software,the factors which effect the springback of U-bending were analyzed to find the main factors.The analysis provided the base for the selec- tion of input and output parameters of the identification and prediction neural network model of intelligent controll of U-bending.
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Funds：
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高等学校博士学科点专项科研基金(20050216013)
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AuthorIntro：
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Reference：
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[1]官英平．板材V型自由弯曲智能化控制技术的研究[D]．秦皇岛：燕山大学，2004．
[2]官英平，王风琴，赵军．宽板V型自由弯曲智能化控制过程的影响因素分析[J]．锻压技术，2005，30(3)：35-39．
[3]雷正保．汽车覆盖件冲压成形CAE技术[M]．长沙：国防科技大学出版社，2003．
[4]Makinouchi A.Sheet metal forming simulation in industry [J].Journal of Material Processing Technology,1996,60 (3):19-26.
[5]Xiao Zhou.Numerical prediction of springback in U-Channel forming of aluminum tailor welded blanks[D].Canada:Car- leton University,1999.
[6]刘京雷．谢仕强，阮锋．弯曲回弹逆解公式及其在焊管预弯机组设计中的应用[J]．锻压技术，2005，30(2)：36-39．
[7]官英平，赵军，苏春建．基于LM算法的宽板V型自由弯曲参数的实时识别[J]．锻压技术，2006，31(4)：103-106．
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