Optimization of spring back in U-die bending process of sheet metal using ANN and ICA

AuthorsMojtaba Sheikhi Azqandi,Ali Ghoddosian,Navid Nooredin
JournalStructural Engineering and Mechanics
Page number447-452
Serial number65
Volume number4
IF0.927
Paper TypeFull Paper
Published At2018
Journal GradeISI
Journal TypeTypographic
Journal CountryIran, Islamic Republic Of
Journal IndexISI،JCR،Scopus

Abstract

The controlling and prediction of spring back is one of the most important factors in sheet metal forming processes which require high dimensional precision. The relationship between effective parameters and spring back phenomenon is highly nonlinear and complicated. Moreover, the objective function is implicit with regard to the design variables. In this paper, first the influence of some effective factors on spring back in U-die bending process was studied through some experiments and then regarding the robustness of artificial neural network (ANN) approach in predicting objectives in mentioned kind of problems, ANN was used to estimate a prediction model of spring back. Eventually, the spring back angle was optimized using the Imperialist Competitive Algorithm (ICA). The results showed that the employment of ANN provides us with less complicated and time-consuming analytical calculations as well as good results with reasonable accuracy.

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tags: U-die bending process; spring back angle; artificial neural network; imperialist competitive algorithm