Simultaneous Optimization of The Initial Blank Shape
and Blank Holder Force in Deep Drawing Process
DR. JIRASAK SRIRAT
ASS...
: http://metallurgyfordummies.com/deep-
drawing
: http://eng.sut.ac.th/metal/images/stories/pdf/p1-12_5_deepdraw_SUT.pdf
Deep Drawing Process
3
1. Punch
2. Die
3. Blank Holder
Plate
Blank Holder
Plate
Blank Holder
Plate
:http://www.doitpoms.ac...
(Sheet metal forming)
: http://www.thomasnet.com/articles/custom-manufacturing-fabricating/deep-
drawing
(Deep drawing)
Keywords: Deep-Drawing, Sheet Metal
Forming, Finite Element Method, Forming
Limit Diagrams, Variable Blank ...
1
2
1.5. Deep drawing
1.5.
1.5.
1.5.
1.5.
1.5.
Naceur, Y.Q. Guo and, J.L. Batoz [1]
Blank optimization in sheet metal
forming using an evolutionary
algorithm
element
“Ev...
S.H.Park ,J.W.Yoon [2]
Blank
earing
Wei Zhu [ ]
Concept Design
Deep Drawing Process
; http://mm.cit.kmutnb.ac.th/td/pdf/research01.pdf
Deep Drawing
Blank Punch
Die
: http://eng.sut.ac.th/metal/images/stories/pdf/p1-
12_5_deepdraw_SUT.pdf
Punch
(Forming Limit Diagram; FLD)
Critical Point)
:Lange,K.,1985,Handbook of Metal Form
McGraw-Hill
Necking) Major
Strain ε1= In(d1/d0) Minor
Strain ε2 = In(d2/d0)
SPCC
;http://www.isit.or.th/uploads/Portfolio/37-file.pdf
...
2.1.3
2.1.
Stiffness Matrix
{f}: vector of element nodal forces
[k] : element stiffness matrix
{d}: vector of unknown element nodal degrees
of freedom...
:
MEE511 Finite element
method
2556 2557
1
3. proposal
4.
5 Algorithm
6.
Finite element
7.
8.
9.
Reference
Website
http://thelibraryofmanufacturing.com/deep_drawing.html
http://www.siamstainless.com/?p=1385
http://www.a...
53210346
53210394
53210422
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  1. 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. 2. : http://metallurgyfordummies.com/deep- drawing
  3. 3. : http://eng.sut.ac.th/metal/images/stories/pdf/p1-12_5_deepdraw_SUT.pdf
  4. 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. 5. (Sheet metal forming) : http://www.thomasnet.com/articles/custom-manufacturing-fabricating/deep- drawing
  6. 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. 7. 1 2
  8. 8. 1.5. Deep drawing 1.5. 1.5. 1.5. 1.5. 1.5.
  9. 9. 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
  10. 10. S.H.Park ,J.W.Yoon [2] Blank earing Wei Zhu [ ]
  11. 11. Concept Design Deep Drawing Process ; http://mm.cit.kmutnb.ac.th/td/pdf/research01.pdf Deep Drawing Blank Punch Die
  12. 12. : http://eng.sut.ac.th/metal/images/stories/pdf/p1- 12_5_deepdraw_SUT.pdf
  13. 13. Punch
  14. 14. (Forming Limit Diagram; FLD) Critical Point) :Lange,K.,1985,Handbook of Metal Form McGraw-Hill
  15. 15. 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
  16. 16. 2.1.3 2.1.
  17. 17. Stiffness Matrix
  18. 18. {f}: vector of element nodal forces [k] : element stiffness matrix {d}: vector of unknown element nodal degrees of freedom Complex matrix
  19. 19. : MEE511 Finite element method
  20. 20. 2556 2557 1 3. proposal 4. 5 Algorithm 6. Finite element 7. 8. 9.
  21. 21. 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
  22. 22. 53210346 53210394 53210422
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