Genetic Algorithm Optimization Of The Forming Process In Case Of A U-Shaped Part Made From Tailor Welded Blanks
This paper presents an optimization method to minimize the springback phenomenon,which generate the main dimensional errors in case of sheet metal forming.The present work deals with numerical simulation related to draw bending and springback of U-shaped part made from tailor welded blanks.The base materials from tailor welded blanks have different springback behaviours,fact that must be taken in consideration in the optimisation process.The Dynaform 5.8.1 software was used to simulate the forming process,in which the blank holder is segmented in two parts in order to apply different holding force for each material.In this research the blank holder forces and the deformation speed take different numerical values.The factorial simulations test plan was made using the Design Experts 7.0 software to cover completely the variation domain.The part obtained after each simulation is analyzed and measured to quantify the errors caused by springback.Parameters as: angle between flange and sidewall,angle between sidewall and part bottom are recorded in a data base.The initial simulations plan together with the obtained results is used to understand the influence of the variable parameters on the springback behaviour of the U-shaped part made from tailor welded blanks.The gained knowledge is used to generate the objective function required by the genetic algorithm optimization method.
tailor welded blanks forming springback genetic algorithm
Albut Aurelian
Vasile Alecsandri University of Bacau,Calea M(a)r(a)(s)e(s)ti,No.157,Bacau,600115,ROMANIA
国际会议
沈阳
英文
677-682
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）