Modeling of Critical Blank Holder Force Based on a Gap Limit and Unbending Strain Energy in Deep Drawing Process Ubaya Repository IJET Full New
E-ISSN 0975 - 4024
VOLUME :7
P-ISSN 2319-8613
ISSUE: 2 ｾ＠
INTERNATIONAL JOURNAL OF
ENGINEERING
AND
- ., .- GY
EDITORIAL BOARD
EDITOR IN CHIEF
ASSOCIATE EDITOR
K.SivaKumar,
A.Selvi,
KEJA Technologies,
Singapore
SIPS Technologies,
India
BOARD MEMBERS
M.Azath
Calicut university/Mets School of
Engineering, Kerala, India.
Dr. S.S.RIAZ AHAMED AMIE.,MCA.,M.
Phil.,M.Tech.,MIEEE.,MACM.,Ph.D.,FIET
E.,C.Engg.
Professor & Head,
Dept of Computer Applications, Mohamed
Sathak Engineering College, India.
Bilal Bahaa Zaidan
AI - Nahrain University, Baghdad, Iraq
Dr. S. Abdul Khader Jilani
College of Computers & Information
Technology, University of Tabuk, Tabuk,
Ministry of Higher Education, The Kingdom
of Saudi Arabia.
Dr. DEBOJYOTI MITRA
Associate Professor & Head,
Mechanical Engineering Department, Sir
Padampat Singhania University,
Hill Villa Annexe, Opp. Hotel Hilltop Palace,
Ambavgarh, Udaipur 313001, Rajasthan,
lndia.
D r.S.Sasikumar
Professor and head, Deparlment ofECE.,
Hindustan college of Engg. and Tech.,
Coimbatore.
Dr. GOVINDARAJ THANGAVEL
Professor, Muthayammal Engineering
CoUege , Rasipuram, India
Dr. Vijay Srivatsan
Digitial Technology Lab. Corp. (Subsidiary of
Mori Seiki), Davis, CA
Dr. Vipan Kakkar
Associate Professor, Q. No. 6, Chanakya
Marg, Shri Mata Vaishno Devi Univers Katra.
J&K. 182 320. India.
Dr. Wang Yong-gang
School of Highway Chang'an University 901
Transportation Sci. & Tech . .Building,
Middle Section ofNanerhuan, Xi'an 710064,
P.R. China
ENGG jOURNALS PUI:lLICATIONS
Visit Us : http:!/ www.enggjournals.com
BOARD MEMBERS
Dr. NAOUFAL RAISSOUNI
Professor of Remote Sensing and Physics at
the National Engineering School for Applied
Sciences,
Abdelmalek Essaadi University,
Tangier-Tetouan-Morocco
Dr. G. V. NAGESH KUMAR
Department of EEE Vignan's Institute of
Information Technology Duvvada,
Vi sakhapatnam, India
Dr. VELAYUTHAM .P
Adh iparasakth i Engin eering College,
Melmaruvathur, India
DR. SIVARAO SUBRAMONIAl'\
ASSOCIATE PROFESSOR,
UNIVERSITI TEKNIKAL MALAYSL>\
MELAKA(UTeM), MELAKA, ｾｴａｌｙ＠
L-\.
DR. BRIJE:\DER • ｈａｾＬＭＮ｜ｌ＠
Associate Profe. ' ., G U\ GlCibaJ Imperial
Technical Campu!> D n ,...,._....: A:nbala
GOVINDARAJ THA:\GAVEL
Professor, Muthaya mmal ing :1eering
College, Rasip uram
Wang Yong-gang
Chang'an University,
Transportation Sci. & Tech. Building,
Middle Section of Nanerhuan,
Xi'an 710064, P. R. Chin a
Dr.S.Sasikumar
Professor and Head,
Hinduslan College of Engineering and
Technolog\', Coimbatore
T.R. Neelakantan
Associate Dean (Research), SASTRA Deemed
University, Tiumj avur, Tamil 'adu, India
D r. DEBO}YOTI MITR A
ａｾｯ｣ｴ｡･＠
Proft-.sor & Head, Sir Padampat
Hill Vi lla Annexe,
mghania ｃｮｴ｜Ｇ･ｲｾｬｹＬ＠
Opp. Hotel lli ll top Palace, Ambavgarh,
Cdatpur 31300 I, Rajasthan, india.
Dr DANWE RAIDANDI
Head of Mechan ical Department,
'Ihe College of Techn ology, Univers ity of
DOUALA, Ca meroon.
Prof. T.Venkat Narayana Rao
Professor and Head,
Hyderabad Tnstilutc of Technology and
Management, Kompally, R.R Dist.
Dr. Bharat Raj Sin gh
Professor and Associate Director, School of
Management Sciences, Technical Campus,
India.
Dr. NAOUFAL RAlSSOUNI
Professor,
Abdelmalek Essaad i University,
Tangier-Tetouan -Morocco
Dr. Mohammad Israr
Principal, Balaji Engineering College,
Junagadh, Gujarat, India
Dr. G. V. NAGESH KUMAR
Associate Professor,
Vignan's Institute of Information Technology,
Duvvada, Visakhapatnam - 530046
Bensafi Abd -El-Hamid
Associate Professor,
Abou Bekr Belkaid University ofTlemcen
Tlemcen, Algeria
M. DANWE Ra'idandi
Head, 'll1e College of Technol ogy,
University of DOUALA, Cameroon.
INTERNATIONAL JOURNAL OF ENGINEERING
AND TECHNOLOGY
TABLE OF CONTENTS
1. A 4 x 4 BUTLER MATRIX FOR 28 GHZ SWITCHED MULTI-BEAM ANTENNA
STELLA IF EOMA ORAKWU E, RAZALI NGAH,. T. A. RAHMAN, HAMZA M. R. AL-KHAFAJI
.
.155-162
2. POLYMERIC COMPOSITE LAMINATE TO INCREASE THE PERFORMANCE OF
NATURAL STONES
W. POLIN I, L. SORRENTINO, S. TURCHETTA, M. FIORINI
163- 170
3. MODELING OF CRITICAL BLANK HOLDER FORCE BASED ON A GAP LIMIT AND
UNBENDING STRAIN ENERGY IN DEEP DRAWING PROCESS
SUSI LA CANDRA, I MADE LON DEN BATAN, WAJAN BERATA, AGUS SIGIT PRAMONO
171-186
4. NUMERICAL ANALYSIS OF PILES IN LAYERED SOILS: A PARAMETRIC STUDY
HAVI KUMAR REDDY C, PADMAKAR K C, MANJARI M, EKASAIKUMAR CH, SAIKUMAR K P R K
187-194
5. A SYMBOL BASED GRAPHICAL SCHEMA BASED ON POSITION VALUE
T.SRIN IVASA RAVI KIRAN, R.SATYA PRASAD
195-210
6. COMPARATIVE STUDY OF DIFFERENT TYPES OF ROOF AND INDOOR
TEMPERATURES IN TROPICAL CLIMATE
MRS. M. PONNI, DR. R. BASKAR
211-218
7. INCREMENTAL GENERATION AND PRIORITIZATION OFT-WAY STRATEGY
FOR WEB BASED APPLICATION
MRS. B. VANI, DR. R. DEEPALAKSHMI
219-230
8. PSO BASED MULTIUSER DETECTION OVER GK FADING CHANNELS WITH MRC
RECEIVE DIVERSITY IN IMPULSIVE NOISE
SRINIVASA RAO VEMPATI, I-lAB IBULLA KHAN, AN IL KUMARTl PPARTI
231-240
9. STRENGTH C HARACTERISTICS OF FIBER REINFORCED QUARRY DUST
STABILIZED FLY ASH
AKSI-IAYA KUMAR SABAT, BIDULA BOSE
241-248
10. MODELING THE IMPACT OF BORDER CROSSING BOTTLENECKS ON SUPPLY
CHAIN DISRUPTION RISK
SHAHEEN SARDAR, YOUNG HAE LEE
249-264
ll. UTILIZATION OF DETECTION AND IDENTIFICATION OF DETONATION
(KNOCK) USING A WAVELET TO CREATE A CHART FOR A PETROL ENG INE'S
CHAR.ACTERISTI CS
AG US SUJONO, R. SOEKRISNO, EKA FIRMANSYAH, OYAS WAI-IYUNGGORO
265-276
12. APPLICATION OF FUZZY TIME SERIES FORECASTING MODEL FOR INDIAN
UNDERGROUND COAL MINING FATAL ACCIDENT DATA
ANUPAM ANANT KHER, DR. RAJENDRA R. YERPUDE
277-286
13. DOUBLE RIDGE CROSS-WAVEGUIDE BIDI RECTIONAL COUPLER USING
ALGORITHMS GENETIC METHOD AND HFSS
FAYZA BOUSALAH, NOU REDDIN E BOUKLI HACENE
287-296
14. METHOD ENLARGE INTENSITY ILLUMINATION WITHOUT ADDING POWER
ELECTRICITY
I KETUT WIJAYA
297-300
15.
PREPARATION
AND
CHARACTERIZATION
OF
TITANIUM
DIOXIDE PHOTOELECTRODES FOR GENERATION OF HYDROGEN BY
PHOTOELECTROCHEMICAL WATER SPLITTING
ALVARO REALPE, DIANA NUNEZ, ISABEL CARBAL, M ARfA T. ACEVEDO, GEZIRA DE AVILA
301-308
16. IMPLEMENT AN ADVANCED SOFT MEASUREMENT METHOD OF MINE DUST
CONCENTRATION BASED ON K-RBF NEURAL NETWORK
HONG YU, XUEZHEN CHENG, MAOYONG CAO, XIAOH ANG GAO
309-3 18
17. HIERARCHICAL WATERMARKING STRUCTURE FOR COMBINED LSB AND
WAVELET METHODS
JAEJOON KIM
319-324
18. INNOVATIVE KNOWLEDGE BASED SYSTEM - DECTSJON SUPPORT SYSTEM
FOR DIAGNOSIS OF CARCINOGENESIS
N.P. GOPALAN, A. MALATHI
325-330
19. STRUCTURAL BEHAVIOR BY REINFORCEMENT TYPE IN THE JOINT OF RC
BEAMS AND COLUMNS MIXED WITH WASTE TIRE MATERIAL
SUN TAE KWON, JAE NAM CHOI, Kl SANG SON
331-340
20. EVALUATION OF SEISMIC PERFORMANCE OF WEIR STRUCTURES IN KOREA
BU SEOG JU, WOO YOUNG JUNG
341-350
e-lSSN: 0975-4024
re
International Journal of Engineering and Technology
Modeling of Critical Blank Holder Force Based
on a Gap Limit and Unbending Strain Energy in
Deep Drawing Process
Susila Cand ra "" 1, 1 Made Londen Batanu2, Wajan Beratai13, A gus Sigit Pramono1'4
f
• Departcmant of Mechanical Engineering, Faculty of Industrial Technology
Institute of Technology Sepuluh Nopember (ITS), Sukol ilo. Surabaya, 60 I ll, East Java, Indonesia
· Departerncnt of Manufacturi ng Engineering, Faculty of Engineering,
University ofSurabaya, Jl. Raya Kalirungkut, Surabaya, 60293, East Java. Indonesia
I susilac@yahoo.com,
2 londbatan@me.its.ac.id,
3 wayanb@me.its.ac.id and
4 pramono@me.its.ac.id
Abstract - This s tud y is :timed to predict the m inimum varyi ng blank holder force (VBHF) during t he
punch stro ke, in order to eliminate wrinkle on cu r> deep drawing product. The slab method was used to
develop mathematical modeling of the minimum VBH F base on a gap limit and unbending energy. T he
ma thematical modeling h11s been validllted to FE s imulations for t he prevention of wl'i nlding in the snmc
criterion. Steel s heet of S PC D grade wi1'11 t·hiclwess of0.2 nun is used to generate the cylindrical cup-shnpcd
product with 40 mm diameter. Analytical Results of minimum VIJIIF have a similar trend result compared
to FE s imulntion. However, the minimum VIJII F can be quite effective for preventing the occurrence of
excessive wrinlde.
Keyword-
ｍｯ､･Ｏｩｮｾ＠
hlank holderforce, Deep drawing, Wrinkling, FE simularion.
I. Introduction
Wrinkling is one type of product defects that arc on en found in the deep drawing process. In order to avoid these
defects, the process parameters, i.e. the blank holder force (BHF) must be determined in the proper value 1'1 -201.
The constant blank holder Ioree during the process, it's frequently not capable to prevent wrinkling, effectively.
To achieve the proper process performance, the blanl.. holder force should be set to make process deformation with
the balance of material now. tangential stress and radial stress [I 0-17). The lowest of BHF magnitude could give
consequences for increasing tangential stress. and gap [ 15-17]. Ir the gap between the blank holder and die mon.:
than I 80% of material thick ness, it will potentially occur the wrinkling products [1 0- I 4). To prevent this problem,
the 131 1F over the punch stroke should be set in propl.!r va lue to anticip11te the deformation condition dynamically.
R. Yen kat Renddy ct al. [ II conducted a study or the inilucncc of process parameters, i.e. the constant Bllr.
punch-die radius and cocflicicnt of friction against the onset of wrinkling in a deep drawing cylindrical cup. This
study was also investigating the mechanism of wrinkling initiation and growth in cylindrical cup deep drawing
process.
Anuparn Agrawal et al. L2Jdeveloped the mathemat ical modeling of minimum constant BII F to avoid wrinkling
of cy lindrical cups, base on calculating of restraining energy and considering the aspect of thinning material.
The constant BHF applied u spring type blank holder. The wrinkling wou ld occur when the buckling strain as
tangential strain is excessive.
Xi Wang et al. (3) and qin si-ji et al. (9) have developed the buckling analysis to predict the onset of wrinkling,
and determined the BHF magn itude by using the theory ofstrain energy. This paper develops an analytical approach
to calculate the critical wrinkling by using a constant blank holder force, base on the theory of restraining energy
and buckling criterion.
M. Kadkhodaya et al. [4), E. Chu et al. [5] Joao Pedro et
....
\
/l
ｾﾷ＠
\/1
ｾ Ｎ ｾ ｾ＠ ｌｉＭｦｴ
0 ,0
2 .5
5 .,0
7,5
1 .0
12.5
ｾ＠
15,0
17,5
zo.o
Proc ess lima
(Punc b Stroke)
(c)
f igurc4. FE Simulation r.:sults 01' cylindrical cup product with gap around I SO% of s.; a. Virtual image of height wrinkle wave e\'ery
punch stroke in cross st:ction direction of 90", 45" and 0", b. A verage uf Gap dunng punch stroke. c. T he minimum VB IIF during punch
ｳｴｲｯｾ｣Ｎ＠
The wrinkle wave he ig ht image in the other cross section is s hown in Fig 5 and 6. T hose fig ures provide the
information, which the application of mathematical modeling of minimum VBHF into AUTOFORM software
would maintain the height of gap not more than 0.392 mm. Where, the maximum height of the gap is obtained by
summing of the maximum wave height of 0.192 mm with the material initial thickness of 0.2 rnrn. T hose figures
a lso show, that the hig hest wave height wrinkles are on the outer flange diameter ("a" and "c" position in graphic).
Punhermore, the sheet materia l closer to the die radius (''b" position), wave height of wrinkles decreased. These
p- ISSN : 23 19-8613
Vol. 7 No.2 Ap r-May 20 15
181
International Journal of Engineering and Technology
e-fSSN: 0975-4024
results while ensuring mathematical modeling results shown in table lll, have a relatively similar trend results.
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•10
Punch Suola 6 mm
FE somulallon, Wronkl mg W
VOLUME :7
P-ISSN 2319-8613
ISSUE: 2 ｾ＠
INTERNATIONAL JOURNAL OF
ENGINEERING
AND
- ., .- GY
EDITORIAL BOARD
EDITOR IN CHIEF
ASSOCIATE EDITOR
K.SivaKumar,
A.Selvi,
KEJA Technologies,
Singapore
SIPS Technologies,
India
BOARD MEMBERS
M.Azath
Calicut university/Mets School of
Engineering, Kerala, India.
Dr. S.S.RIAZ AHAMED AMIE.,MCA.,M.
Phil.,M.Tech.,MIEEE.,MACM.,Ph.D.,FIET
E.,C.Engg.
Professor & Head,
Dept of Computer Applications, Mohamed
Sathak Engineering College, India.
Bilal Bahaa Zaidan
AI - Nahrain University, Baghdad, Iraq
Dr. S. Abdul Khader Jilani
College of Computers & Information
Technology, University of Tabuk, Tabuk,
Ministry of Higher Education, The Kingdom
of Saudi Arabia.
Dr. DEBOJYOTI MITRA
Associate Professor & Head,
Mechanical Engineering Department, Sir
Padampat Singhania University,
Hill Villa Annexe, Opp. Hotel Hilltop Palace,
Ambavgarh, Udaipur 313001, Rajasthan,
lndia.
D r.S.Sasikumar
Professor and head, Deparlment ofECE.,
Hindustan college of Engg. and Tech.,
Coimbatore.
Dr. GOVINDARAJ THANGAVEL
Professor, Muthayammal Engineering
CoUege , Rasipuram, India
Dr. Vijay Srivatsan
Digitial Technology Lab. Corp. (Subsidiary of
Mori Seiki), Davis, CA
Dr. Vipan Kakkar
Associate Professor, Q. No. 6, Chanakya
Marg, Shri Mata Vaishno Devi Univers Katra.
J&K. 182 320. India.
Dr. Wang Yong-gang
School of Highway Chang'an University 901
Transportation Sci. & Tech . .Building,
Middle Section ofNanerhuan, Xi'an 710064,
P.R. China
ENGG jOURNALS PUI:lLICATIONS
Visit Us : http:!/ www.enggjournals.com
BOARD MEMBERS
Dr. NAOUFAL RAISSOUNI
Professor of Remote Sensing and Physics at
the National Engineering School for Applied
Sciences,
Abdelmalek Essaadi University,
Tangier-Tetouan-Morocco
Dr. G. V. NAGESH KUMAR
Department of EEE Vignan's Institute of
Information Technology Duvvada,
Vi sakhapatnam, India
Dr. VELAYUTHAM .P
Adh iparasakth i Engin eering College,
Melmaruvathur, India
DR. SIVARAO SUBRAMONIAl'\
ASSOCIATE PROFESSOR,
UNIVERSITI TEKNIKAL MALAYSL>\
MELAKA(UTeM), MELAKA, ｾｴａｌｙ＠
L-\.
DR. BRIJE:\DER • ｈａｾＬＭＮ｜ｌ＠
Associate Profe. ' ., G U\ GlCibaJ Imperial
Technical Campu!> D n ,...,._....: A:nbala
GOVINDARAJ THA:\GAVEL
Professor, Muthaya mmal ing :1eering
College, Rasip uram
Wang Yong-gang
Chang'an University,
Transportation Sci. & Tech. Building,
Middle Section of Nanerhuan,
Xi'an 710064, P. R. Chin a
Dr.S.Sasikumar
Professor and Head,
Hinduslan College of Engineering and
Technolog\', Coimbatore
T.R. Neelakantan
Associate Dean (Research), SASTRA Deemed
University, Tiumj avur, Tamil 'adu, India
D r. DEBO}YOTI MITR A
ａｾｯ｣ｴ｡･＠
Proft-.sor & Head, Sir Padampat
Hill Vi lla Annexe,
mghania ｃｮｴ｜Ｇ･ｲｾｬｹＬ＠
Opp. Hotel lli ll top Palace, Ambavgarh,
Cdatpur 31300 I, Rajasthan, india.
Dr DANWE RAIDANDI
Head of Mechan ical Department,
'Ihe College of Techn ology, Univers ity of
DOUALA, Ca meroon.
Prof. T.Venkat Narayana Rao
Professor and Head,
Hyderabad Tnstilutc of Technology and
Management, Kompally, R.R Dist.
Dr. Bharat Raj Sin gh
Professor and Associate Director, School of
Management Sciences, Technical Campus,
India.
Dr. NAOUFAL RAlSSOUNI
Professor,
Abdelmalek Essaad i University,
Tangier-Tetouan -Morocco
Dr. Mohammad Israr
Principal, Balaji Engineering College,
Junagadh, Gujarat, India
Dr. G. V. NAGESH KUMAR
Associate Professor,
Vignan's Institute of Information Technology,
Duvvada, Visakhapatnam - 530046
Bensafi Abd -El-Hamid
Associate Professor,
Abou Bekr Belkaid University ofTlemcen
Tlemcen, Algeria
M. DANWE Ra'idandi
Head, 'll1e College of Technol ogy,
University of DOUALA, Cameroon.
INTERNATIONAL JOURNAL OF ENGINEERING
AND TECHNOLOGY
TABLE OF CONTENTS
1. A 4 x 4 BUTLER MATRIX FOR 28 GHZ SWITCHED MULTI-BEAM ANTENNA
STELLA IF EOMA ORAKWU E, RAZALI NGAH,. T. A. RAHMAN, HAMZA M. R. AL-KHAFAJI
.
.155-162
2. POLYMERIC COMPOSITE LAMINATE TO INCREASE THE PERFORMANCE OF
NATURAL STONES
W. POLIN I, L. SORRENTINO, S. TURCHETTA, M. FIORINI
163- 170
3. MODELING OF CRITICAL BLANK HOLDER FORCE BASED ON A GAP LIMIT AND
UNBENDING STRAIN ENERGY IN DEEP DRAWING PROCESS
SUSI LA CANDRA, I MADE LON DEN BATAN, WAJAN BERATA, AGUS SIGIT PRAMONO
171-186
4. NUMERICAL ANALYSIS OF PILES IN LAYERED SOILS: A PARAMETRIC STUDY
HAVI KUMAR REDDY C, PADMAKAR K C, MANJARI M, EKASAIKUMAR CH, SAIKUMAR K P R K
187-194
5. A SYMBOL BASED GRAPHICAL SCHEMA BASED ON POSITION VALUE
T.SRIN IVASA RAVI KIRAN, R.SATYA PRASAD
195-210
6. COMPARATIVE STUDY OF DIFFERENT TYPES OF ROOF AND INDOOR
TEMPERATURES IN TROPICAL CLIMATE
MRS. M. PONNI, DR. R. BASKAR
211-218
7. INCREMENTAL GENERATION AND PRIORITIZATION OFT-WAY STRATEGY
FOR WEB BASED APPLICATION
MRS. B. VANI, DR. R. DEEPALAKSHMI
219-230
8. PSO BASED MULTIUSER DETECTION OVER GK FADING CHANNELS WITH MRC
RECEIVE DIVERSITY IN IMPULSIVE NOISE
SRINIVASA RAO VEMPATI, I-lAB IBULLA KHAN, AN IL KUMARTl PPARTI
231-240
9. STRENGTH C HARACTERISTICS OF FIBER REINFORCED QUARRY DUST
STABILIZED FLY ASH
AKSI-IAYA KUMAR SABAT, BIDULA BOSE
241-248
10. MODELING THE IMPACT OF BORDER CROSSING BOTTLENECKS ON SUPPLY
CHAIN DISRUPTION RISK
SHAHEEN SARDAR, YOUNG HAE LEE
249-264
ll. UTILIZATION OF DETECTION AND IDENTIFICATION OF DETONATION
(KNOCK) USING A WAVELET TO CREATE A CHART FOR A PETROL ENG INE'S
CHAR.ACTERISTI CS
AG US SUJONO, R. SOEKRISNO, EKA FIRMANSYAH, OYAS WAI-IYUNGGORO
265-276
12. APPLICATION OF FUZZY TIME SERIES FORECASTING MODEL FOR INDIAN
UNDERGROUND COAL MINING FATAL ACCIDENT DATA
ANUPAM ANANT KHER, DR. RAJENDRA R. YERPUDE
277-286
13. DOUBLE RIDGE CROSS-WAVEGUIDE BIDI RECTIONAL COUPLER USING
ALGORITHMS GENETIC METHOD AND HFSS
FAYZA BOUSALAH, NOU REDDIN E BOUKLI HACENE
287-296
14. METHOD ENLARGE INTENSITY ILLUMINATION WITHOUT ADDING POWER
ELECTRICITY
I KETUT WIJAYA
297-300
15.
PREPARATION
AND
CHARACTERIZATION
OF
TITANIUM
DIOXIDE PHOTOELECTRODES FOR GENERATION OF HYDROGEN BY
PHOTOELECTROCHEMICAL WATER SPLITTING
ALVARO REALPE, DIANA NUNEZ, ISABEL CARBAL, M ARfA T. ACEVEDO, GEZIRA DE AVILA
301-308
16. IMPLEMENT AN ADVANCED SOFT MEASUREMENT METHOD OF MINE DUST
CONCENTRATION BASED ON K-RBF NEURAL NETWORK
HONG YU, XUEZHEN CHENG, MAOYONG CAO, XIAOH ANG GAO
309-3 18
17. HIERARCHICAL WATERMARKING STRUCTURE FOR COMBINED LSB AND
WAVELET METHODS
JAEJOON KIM
319-324
18. INNOVATIVE KNOWLEDGE BASED SYSTEM - DECTSJON SUPPORT SYSTEM
FOR DIAGNOSIS OF CARCINOGENESIS
N.P. GOPALAN, A. MALATHI
325-330
19. STRUCTURAL BEHAVIOR BY REINFORCEMENT TYPE IN THE JOINT OF RC
BEAMS AND COLUMNS MIXED WITH WASTE TIRE MATERIAL
SUN TAE KWON, JAE NAM CHOI, Kl SANG SON
331-340
20. EVALUATION OF SEISMIC PERFORMANCE OF WEIR STRUCTURES IN KOREA
BU SEOG JU, WOO YOUNG JUNG
341-350
e-lSSN: 0975-4024
re
International Journal of Engineering and Technology
Modeling of Critical Blank Holder Force Based
on a Gap Limit and Unbending Strain Energy in
Deep Drawing Process
Susila Cand ra "" 1, 1 Made Londen Batanu2, Wajan Beratai13, A gus Sigit Pramono1'4
f
• Departcmant of Mechanical Engineering, Faculty of Industrial Technology
Institute of Technology Sepuluh Nopember (ITS), Sukol ilo. Surabaya, 60 I ll, East Java, Indonesia
· Departerncnt of Manufacturi ng Engineering, Faculty of Engineering,
University ofSurabaya, Jl. Raya Kalirungkut, Surabaya, 60293, East Java. Indonesia
I susilac@yahoo.com,
2 londbatan@me.its.ac.id,
3 wayanb@me.its.ac.id and
4 pramono@me.its.ac.id
Abstract - This s tud y is :timed to predict the m inimum varyi ng blank holder force (VBHF) during t he
punch stro ke, in order to eliminate wrinkle on cu r> deep drawing product. The slab method was used to
develop mathematical modeling of the minimum VBH F base on a gap limit and unbending energy. T he
ma thematical modeling h11s been validllted to FE s imulations for t he prevention of wl'i nlding in the snmc
criterion. Steel s heet of S PC D grade wi1'11 t·hiclwess of0.2 nun is used to generate the cylindrical cup-shnpcd
product with 40 mm diameter. Analytical Results of minimum VIJIIF have a similar trend result compared
to FE s imulntion. However, the minimum VIJII F can be quite effective for preventing the occurrence of
excessive wrinlde.
Keyword-
ｍｯ､･Ｏｩｮｾ＠
hlank holderforce, Deep drawing, Wrinkling, FE simularion.
I. Introduction
Wrinkling is one type of product defects that arc on en found in the deep drawing process. In order to avoid these
defects, the process parameters, i.e. the blank holder force (BHF) must be determined in the proper value 1'1 -201.
The constant blank holder Ioree during the process, it's frequently not capable to prevent wrinkling, effectively.
To achieve the proper process performance, the blanl.. holder force should be set to make process deformation with
the balance of material now. tangential stress and radial stress [I 0-17). The lowest of BHF magnitude could give
consequences for increasing tangential stress. and gap [ 15-17]. Ir the gap between the blank holder and die mon.:
than I 80% of material thick ness, it will potentially occur the wrinkling products [1 0- I 4). To prevent this problem,
the 131 1F over the punch stroke should be set in propl.!r va lue to anticip11te the deformation condition dynamically.
R. Yen kat Renddy ct al. [ II conducted a study or the inilucncc of process parameters, i.e. the constant Bllr.
punch-die radius and cocflicicnt of friction against the onset of wrinkling in a deep drawing cylindrical cup. This
study was also investigating the mechanism of wrinkling initiation and growth in cylindrical cup deep drawing
process.
Anuparn Agrawal et al. L2Jdeveloped the mathemat ical modeling of minimum constant BII F to avoid wrinkling
of cy lindrical cups, base on calculating of restraining energy and considering the aspect of thinning material.
The constant BHF applied u spring type blank holder. The wrinkling wou ld occur when the buckling strain as
tangential strain is excessive.
Xi Wang et al. (3) and qin si-ji et al. (9) have developed the buckling analysis to predict the onset of wrinkling,
and determined the BHF magn itude by using the theory ofstrain energy. This paper develops an analytical approach
to calculate the critical wrinkling by using a constant blank holder force, base on the theory of restraining energy
and buckling criterion.
M. Kadkhodaya et al. [4), E. Chu et al. [5] Joao Pedro et
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The wrinkle wave he ig ht image in the other cross section is s hown in Fig 5 and 6. T hose fig ures provide the
information, which the application of mathematical modeling of minimum VBHF into AUTOFORM software
would maintain the height of gap not more than 0.392 mm. Where, the maximum height of the gap is obtained by
summing of the maximum wave height of 0.192 mm with the material initial thickness of 0.2 rnrn. T hose figures
a lso show, that the hig hest wave height wrinkles are on the outer flange diameter ("a" and "c" position in graphic).
Punhermore, the sheet materia l closer to the die radius (''b" position), wave height of wrinkles decreased. These
p- ISSN : 23 19-8613
Vol. 7 No.2 Ap r-May 20 15
181
International Journal of Engineering and Technology
e-fSSN: 0975-4024
results while ensuring mathematical modeling results shown in table lll, have a relatively similar trend results.
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