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![Naceur, Y.Q. Guo and, J.L. Batoz [1]
Blank optimization in sheet metal
forming using an evolutionary
algorithm
element
“Evolutionary Structural
Optimization ESO ”
*Iter : Iteration
Keyword: Evolutionary Structural
Optimization ESO](https://image.slidesharecdn.com/pp2-130904051807-/85/Pp2-10-320.jpg)
![S.H.Park ,J.W.Yoon [2]
Blank
earing
Wei Zhu [ ]](https://image.slidesharecdn.com/pp2-130904051807-/85/Pp2-11-320.jpg)
![{f}: vector of element nodal forces
[k] : element stiffness matrix
{d}: vector of unknown element nodal degrees
of freedom
Complex matrix](https://image.slidesharecdn.com/pp2-130904051807-/85/Pp2-19-320.jpg)
Uploaded bySatianpong Kongkrajong
Pp2
This document summarizes research on simultaneously optimizing the initial blank shape and blank holder force in deep drawing processes. It discusses using finite element analysis and an evolutionary algorithm to iteratively modify the blank shape and blank holder force distribution to reduce thinning and failure. The goal is to determine the optimal blank shape and force conditions for deep drawing processes to improve formability and product quality while reducing waste.
Pp2
- 1. Simultaneous Optimization ofThe Initial Blank Shape and Blank Holder Force in Deep Drawing Process DR. JIRASAK SRIRAT ASSOC.PROF.DR.PONGPHAN KAEWTATHIP
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- 4. Deep Drawing Process 3 1.Punch 2. Die 3. Blank Holder Plate Blank Holder Plate Blank Holder Plate :http://www.doitpoms.ac.uk/tlplib/metal-forming- 2/other_processes.php
- 5. (Sheet metal forming) :http://www.thomasnet.com/articles/custom-manufacturing-fabricating/deep- drawing
- 6. (Deep drawing) Keywords: Deep-Drawing,Sheet Metal Forming, Finite Element Method, Forming Limit Diagrams, Variable Blank Holder Force :http://metallurgyfordummies.com/deep- drawing/
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- 10. Naceur, Y.Q. Guoand, J.L. Batoz [1] Blank optimization in sheet metal forming using an evolutionary algorithm element “Evolutionary Structural Optimization ESO ” *Iter : Iteration Keyword: Evolutionary Structural Optimization ESO
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- 12. Concept Design Deep DrawingProcess ; http://mm.cit.kmutnb.ac.th/td/pdf/research01.pdf Deep Drawing Blank Punch Die
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- 15. (Forming Limit Diagram;FLD) Critical Point) :Lange,K.,1985,Handbook of Metal Form McGraw-Hill
- 16. Necking) Major Strain ε1=In(d1/d0) Minor Strain ε2 = In(d2/d0) SPCC ;http://www.isit.or.th/uploads/Portfolio/37-file.pdf Forming Limit Cur
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- 19. {f}: vector ofelement nodal forces [k] : element stiffness matrix {d}: vector of unknown element nodal degrees of freedom Complex matrix
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- 22. 2556 2557 1 3. proposal 4. 5Algorithm 6. Finite element 7. 8. 9.
- 23. Reference Website http://thelibraryofmanufacturing.com/deep_drawing.html http://www.siamstainless.com/?p=1385 http://www.academia.edu/2928625/A_REVIEW_OF_THE_OPTIMIZATION_TECHNIQUES_A PPLIED_TO_THE_DEEP_DRAWING_PROCESS Journal Paper Jirasak SRIRAT,Satoshi KITAYAMA and Koetsu YAMAZAKI., Optimization of Initial Blank Shape with a Variable Blank Holder Force in Deep-Drawing via Sequential Approximate Optimization, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan H. Naceur., Y.Q. Guo.,and J.L. Batoz. Blank optimization in sheet metal forming using an evolutionary algorithm, Journal of Materials Processing Technology 151 (2004) 183–191 Text book Dixit, Prakash M . Modeling of metal forming and machining processes : by finite element
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