Stamping (including Sheet Hydroforming)

A 2-volume book on “Sheet metal forming fundamentals and applications”, by our team, was published by ASM International in 2012. (Sheet Metal Forming: Fundamentals ISBN - 978-1615038428 and Sheet Metal Forming: Processes and applications ISBN- 978-1615038442)

RECENT PRESENTATIONS AND PUBLICATIONS (PDF/Flash Files) (Please click on Publications/ Papers on the left side-bar for a complete list of publications)

A. GENERAL/OVERVIEW

A1.Research activities at ERC/NSM and CPF, Center for Precision Forming-CPF,The Ohio State University, Columbus, Ohio, U.S.A, May 2011.(powerpoint slides)

A2. Challenges in Forming AHSS, Sheet Metal Forming Conference, Stuttgart, May 2010.(powerpoint slides)

#646 - Altan, T., et al, "Advances in Metal Forming Research at the Center for Precision Forming - Industry/University Cooperation", Key Note Paper, International Die/Mold Conference, Ankara, Turkey, June 23-26, 2011

“”#652 - Sheet metal forming-Fundamentals and applications- new book, published by ASM International in August, 2012..

B. MATERIALS/FORMABILITY

B1. Material Characterization for Quality Control and Finite Element Analysis, Workshop on Forming Advanced High Strength Steels (AHSS) April 29, 2009, Center for Precision Forming (CPF), The Ohio State University, Columbus, Ohio, U.S.A.(powerpoint slides)

B2. Evaluation of Criteria for Predicting Shear Fracture in Bending and Flanging, 2010 AISI Shear Fracture Symposium, Livonia, Michigan, August 19, 2010 (powerpoint slides )

 
#594 - Altan, T. et al., "Determination of Sheet Material Properties Using Biaxial Bulge Tests" Proceedings of the 2nd Int. Conference on Accuracy in Forming Technology, Nov. 13-15, 2006. Chemnitz, Germany

#642-3 - Kardes, N., Choi, C., Yang, X. and Altan, T., "Determining the Flow Stress Curve with Yield and Ultimate Tensile Strengths - Part I", Stamping Journal, May/June, 2011, p. 12-13

#642-4 - Kardes, N., et al "Determining the Flow Stress Curve with Yield and Ultimate Tensile Strengths - Part II", Stamping Journal, July/August, 2011, p. 14

#642-5 -Kardes, N.et.al "Determining the flow Stress curve with Biaxial testing", Stamping Journal, September/October 2011, p12

#647 - Billur, E., and Altan, T., "Factors Affecting the Accuracy of Flow Stress Determined by the Bulge Test", Proceedings of ICTP, Aachen, Germany, September, 2011

C. FRICTION/LUBRICATION

C1. Evaluation of Lubricants for Production Conditions in Metal Forming, Center for Precision Forming (CPF), The Ohio State University, Columbus, Ohio, U.S.A, May 2011(powerpoint slides)

C2. “” Evaluation of Coatings, Tool Materials and Lubricants in Forming of Galvanized Advanced High Strength Steels. The 58th CIRP General Assembly, 24-30 August 2008, Manchester, England (powerpoint slides)

#628-1 -Groseclose, A., "Evaluating lubricant performance for stamping - Part I", Stamping Journal, March 2009, p.12

#628-2 -Groseclose, A., "Evaluation of lubricant performance for stamping - Part II", , Stamping Journal, April 2009, p.10

#628-10 - Subramonian, S., and Altan, T., "Evaluation of Lubricants for Stamping Galvanized Steels Part I - Evaluation Using SDT, Stamping Journal, July/Aug 2010, p. 8

#628-11 -Subramonian, S., and Altan, T., "Evaluation of Lubricants for Stamping Galvanized Steels - Part II - Deep Drawing Test", Stamping Journal, Sept/Oct 2010, p.8

#630 - Subramonian, S., Kardes, N., Demiralp, Y., Jurich, M., and Altan, T., "Evaluation of Stamping Lubricants in Forming Galvannealed Steels for Industrial Application", Journal of Manufacturing Science and Engineering, Dec 2011, v. 133, issue 6

D. PROCESS SIMULATION/ SPRINGBACK

D1. Simulation and Optimization Processes for Metal Forming Processes, Center for Precision Forming-CPF ,The Ohio State University, Columbus, Ohio,U.S.A(powerpoint slides )

#628-6 -Sartkulvanich, P., et al., "Investigating Springback in Rotary Bending", Stamping Journal, Sept/Oct. 2009, p. 10

#629 -Kim, H., Kimchi, M. and Altan, T. "Control of Springback in Bending and Flanging AHSS, 2009 International Auto Body Conference, November 2009, Troy, MI

#642-1 -Xi, Y., et al. "Investigation of Springback in Bending AHSS - Part II", Stamping Journal, Jan/Feb, 2011, p. 9-10
 

E. EQUIPMENT/TOOLING

E1. Servo Drive Presses- recent Developments, Workshop of Forming of Advanced High Strength Steels(AHSS), November 30, 2010, Center for Precision Forming-CPF,The Ohio State University, Columbus, Ohio, U.S.A(powerpoint slides)

E2. Applications of Modern Cushion Systems to Improve Quality and Productivity in Sheet Metal Forming, CIRP Conference on Machine-Process Interactions, Vancouver, Canada, June 10, 2010 (powerpoint slides)

#282 - Breitling, J., Wallace, D., & Altan, T. "Investigations of Different Loading Conditions in a High Speed Mechanical Press" Journal of Materials Processing Technology, 1996, vol. 59, nos. 1-2, pp.18

#570-10 - Yadav, A. & Altan, T. "Multipoint Control Die Cushion Systems- Part I" R&D Update, Stamping Journal, Sept 2006, p32

#570-11-Yadav, A. & Altan, T. "Multipoint Control Die Cushion Systems- Part II" R&D Update, Stamping Journal, Oct 2006, p28

 
#570-12 -Yadav, A. & Altan, T. "Multipoint Control Die Cushion Systems- Part III" R&D Update, Stamping Journal, Nov 2006, p36

#628-4 - Groseclose, A., "New applications for servo-driven presses - Part I: Stamping of automotive components", Stamping Journal, June 2009, p.14

#628-5 - Groseclose, A., "New applications for servo-driven presses - Part II: New technologies and advancements", Stamping Journal, July 2009, p.8

#628-7 - Billur, E., "Die Materials and Wear in Stamping AHSS - Part I - Die Wear and Die Coatings", Stamping Journal, Jan/Feb 2010, p. 8

#628-8 -Billur, E., "Die Materials and Wear in Stamping AHSS - Part II - Tests for Evaluating Galling and Wear", Stamping Journal, March/April 2010, p. 10

#628-9 -Billur, E., "Die Materials and Wear in Stamping AHSS - Part III - Research Results", Stamping Journal, May/June 2010, p. 12

#633 - Altan, T and Penter, L., "Application of Modern Cushion Systems to Improve Quality and Productivity in Sheet Metal Forming", Proceedings of the CIRP Conference on Machine-Process Interactions, Vancouver, Canada, June 2010

#642-11 - Billur, E. and Altan, T., "AServo-driven presses for AHSS stamping - How the technology can simplify the forming of complex parts", Stamping journal, November/December, 2012, p.12-13

#649 -Altan, T., and Groseclose, A., "Servo Drive Presses - Recent Developments", Proceedings of the 5th International Conference on Design of Dies/Molds, 18-21, Kusadasi, Turkey, June, 2009

#650 -Osakada, K., Mori, K., Altan, T., Groche, P., "Mechanical Servo Press Technology for Metal Forming", Keynote Paper, Annals of CIRP, Vol. 2, 2011

F. HOT STAMPING

F1. Progress on Finite Element Simulation of the Hot Stamping Process , 3rd International Conference on Hot Sheet Metal Forming of High-Performance of Steel, Kassel, Germany, June 13-16, 2011(powerpoint slides)

F2. Hot Stamping of Boron Steels, 10th Industrial Advisory Board (IAB) Meeting, Center for Precision Forming (CPF), The Ohio State University, Columbus, Ohio, U.S.A, June 2011( powerpoint slides)

F3. Billur. E, Altan.T, "Progress on FE Simulation of the Hot Stamping Process", submitted to the Colloquium- Virtual Engineering and Planning Progress in the Process Chain Body, Munich Germany, September 22-23, 2011 (powerpoint slides)

#642-2 -Naganathan, A., Ravindran, D., and Altan, T., "Hot Stamping Boron-alloyed Steels for Automotive Parts", Stamping Journal, March/April, 2011, p.12-13

#642-7 - Billur. E, Altan.T., "Exploring the 3rd International Conference on Hot Stamping Technology, Part I: New Applications", Stamping Journal, Nov/Dec, 2011, p.12-13

#642-8 - Billur. E, Altan.T., "Exploring the 3rd International Conference on Hot Stamping Technology, Part II: New Applications", Stamping Journal, Jan/Feb, 2012, p.10-11

#645 - Naganathan, A., et al, (including Altan, T.), "Progress on FE Simulation of the Hot Stamping Process", submitted to 3rd Int. Conference on Hot Sheet Metal Forming of High Performance Steel-CHS, Kassel, Germany, June 13-16, 2011

G. HYDROFORMING/WARM FORMING

#570-03 - Sheet Hydroforming with Die: Process and Applications, Part I Stamping Journal, February 2006, p.40

#570-04 - Sheet Hydroforming with Punch: Process and Applications, Part II Stamping Journal, March 2006, p.44

#570-05 - Processes for Hydroforming Sheet Metal- Part III, Stamping Journal, April 2006, p.26 &27

#570-08 - Yadav / Spampinato; "Warm Forming of Stainless Steels- Part I", Stamping Journal, July 2006, p.36

#570-09 - Yadav / Spampinato; "Warm Forming of Stainless Steels- Part II", Stamping Journal, August 2006, p.28

#628-3 - Altan, T., "Rapid Manufacturing of Sheet Metal Parts Using Diaphragm Hydroforming and FDM", Stamping Journal, May 2009, p.12

#635 - Kaya, S., and Altan, T., "Non-Isothermal Deep Drawing of Alum. and Mg Using Servo Presses", Proceedings of the ASME 2010 Int. Manuf. Science and Engineering Conference, MSEC 2010, Oct. 12-15, 2010, Erie, PA, USA

#648 - Shah, M., et al, "Cold and Warm Hydroforming of AA5754-0 Sheet - FE Simulations and Experiments", Numisheet, Seoul, Korea, 2011

H. BLANKING

H1 Finite Element Analysis of the Effect of Blanked Edge Quality upon Stretch Flanging of AHSS, CIRP International Academy for Production Engineering, 60th General Assembly, Pisa, Italy, August 22-28, 2010 (powerpoint slides)
 

#325 - Breitling, & Altan, T., "Blanking of Non-Round Parts-Effects of Punch-Die Clearance Upon Part Edge Quality", Stamping Journal. May/June, 1997, pg.27

#597-07 - Kaya. S.& Altan, T., "Blanking Developments-Part I: Fine blanking process and tool design", Stamping Journal, July 2007, p.14

#597-08 - Kaya. S.& Altan, T., "Blanking Developments-Part II: Fine blanking process and tool design", Stamping Journal, August 2007, p.14

#597-09 - Kaya. S.& Altan, T., "Blanking Developments-Part II: Fine blanking process and tool design", Stamping Journal, September 2007, p.22

#631 - Sartkulvanich, P., et al, "FEA of the effect of blanked edge quality upon stretch flanging of AHSS", Annals of CIRP-GA-2010, p.279-282

#620-5 - Kardes, N., & Altan, T., "Examining Edge Cracking in Hole Flanging of AHSS" - Part I, Stamping Journal, July/August, 2008, p. 18

#620-6 - Sartkulvanich, P., & Altan, T., "Examining Edge Cracking in Hole Flanging of AHSS" - Part II, Stamping Journal, September 2008, p. 22

#620-7 -Sartkulvanich, P., & Altan, T., "Examining Edge Cracking in Hole Flanging of AHSS" - Part III, Stamping Journal, October 2008, p. 16

#620-8 - Sartkulvanich, P., & Altan, T., "Examining Edge Cracking in Hole Flanging of AHSS" - Part IV, Stamping Journal, November 2008, p. 20

#642-9 - Subramonian, S., and Altan, T., Punch Wear in Blanking - Part I. Punch Geometry and Failure, Stamping Journal, July/August 2012, p.14.

#642-10 - Subramonian, S., and Altan, T., Punch Failure, Material and Coating in Blanking

I. FORMING OF AHSS

#634 - Billur, E., and Altan, T., "Challenges in Forming AHSS", Proceedings of the Int. Conference on Developments in Sheet Metal Forming, Stuttgart, Germany, May 2-4, 2010
 

#543-09 - High Strength Steels-Part I- Properties and Applications,, Stamping Journal, Nov 2004, p32

#543-10 - Forming High Strength Steels-Part II-Selecting Tool Materials, Stamping Journal, Dec 2004, p28
 

#621 - Al-Nasser, A., et al., "Determination of Flow Stress of Five AHSS Sheet Materials (DP600, DP780, DP780-CR, DP780-HY and TRIP780) Using Uniaxial Tensile and Biaxial Viscous Pressure Bulge (VPB) Tests" JMPT, Feb, 2010, p. 429-436.
 

#638 - Kardes, N., et al, "Springback Prediction in Bending of AHSS - DP780", Submitted NAMRC 2012, v. 40, Nov. 2011

#651 -Kim, H. Altan, T., et al, "Effects of Variable Elastic Modulus on Springback Predictions in Stamping of AHSS", Proceedings of ICTP, September 25-30, 2011, Aachen, Germany
 

J. FORMING OF ALUMINUM ALLOYS

#642-12 - Mao, T. and Altan, T.,Aluminium sheet forming for automotive applications, Part I - Material properties and design guideline, Stamping journal, January/February, 2013, p.12-13

#642-13 - Mao, T. and Altan, T.,Aluminium sheet forming for automotive applications, Part II - The effects of lubricants, surface finish and coatings, to be published in the Stamping journal, March/April, 2013