1. Simultaneous Optimization of The Initial Blank Shape
and Blank Holder Force in Deep Drawing Process
DR. JIRASAK SRIRAT
ASSOC.PROF.DR.PONGPHAN KAEWTATHIP

2. : http://metallurgyfordummies.com/deep-
drawing

3. : http://eng.sut.ac.th/metal/images/stories/pdf/p1-12_5_deepdraw_SUT.pdf

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/

7. 1
2

9. 1.5. Deep drawing
1.5.
1.5.
1.5.
1.5.
1.5.

10. 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

11. S.H.Park ,J.W.Yoon [2]
Blank
earing
Wei Zhu [ ]

12. Concept Design
Deep Drawing Process
; http://mm.cit.kmutnb.ac.th/td/pdf/research01.pdf
Deep Drawing
Blank Punch
Die

13. : http://eng.sut.ac.th/metal/images/stories/pdf/p1-
12_5_deepdraw_SUT.pdf

14. Punch

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

17. 2.1.3
2.1.

18. Stiffness Matrix

19. {f}: vector of element nodal forces
[k] : element stiffness matrix
{d}: vector of unknown element nodal degrees
of freedom
Complex matrix

20. :
MEE511 Finite element
method

22. 2556 2557
1
3. proposal
4.
5 Algorithm
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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