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A hybrid approach based on numerical, statistical and intelligent techniques for optimization of tube drawing process to produce squared section from round tube

Mehran Ghasempour-Mouziraji's picture

http://ijmf.shirazu.ac.ir/article_5033.html 

In tube drawing process, there is a bunch of parameters playing key roles in the process performance. Thus finding the optimized parameters is a controversial issue. The current study aimed to produce a squared section of round tube by tube sinking process. Finite element method (FEM) was used to simulate the process. Then, to find a meaningful kinship between process input and output parameters the developed FE model was associated with the design of an experiment based on response surface methodology (RSM). The sufficiency of each model was checked by analyzing the variances. Further, the SA (simulated annealing) was associated with RSM models to find the optimal solution regarding maximum thickness distributions and minimum force and dimensional error. Hereafter, for performing accurate optimization, principal component analysis was used to find the appropriate weight factor of each response. The obtained results were in right congruence with those derived from the simulation and confirmatory experiment

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