Successive forging of tailored blank having thickness distribution for hot stamping

  • Liyana Tajul
  • Tomoyoshi Maeno
  • Takaya Kinoshita
  • Ken-ichiro Mori


A successive forging process of tailored blanks having a thickness distribution supplied for hot stamping was developed. In this process, a blank having a uniform thickness was successively compressed with the upper and lower punches, simultaneously. Since local deformation was repeated in successive forging, the forging load is comparatively small, and tailored blanks without joining are produced similar to the tailor rolling process. The thickness was controlled only by the feed under a fixed stroke of the punch. As the feed decreases, the forging load decreases due to small contact area, and thus, the reduction in thickness of the blank becomes large for small elastic deformation of the press and tools. Tool marks appearing on the surface of the tailored blank were prevented by inserting concave and convex plates into a C-frame of a press. A tailored blank having two thicknesses was successively forged, and then hot-stamped into a roof rail.


Successive forging Tailored blank Thickness distribution Elastic deformation Hot stamping 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Kleiner M, Chatti S, Klaus A (2006) Metal forming techniques for lightweight construction. J Mater Process Technol 177:2–7CrossRefGoogle Scholar
  2. 2.
    Merklein M, Johannes M, Lechner M, Kuppert A (2014) A review on tailored blanks-production, applications and evaluation. J Mater Process Technol 214:151–164CrossRefGoogle Scholar
  3. 3.
    Min KB, Kim KS, Kang SS (2000) A study on resistance welding in steel sheets using a tailor-welded blank (1st report) evaluation of upset weldability and formability. J Mater Process Technol 101:186–192CrossRefGoogle Scholar
  4. 4.
    Lamprecht K, Geiger M (2005) Advanced numerical modeling of patchwork blank forming processes. Proceedings of the 8th International Conference on Technology of Plasticity 567–568Google Scholar
  5. 5.
    Lamprecht K, Merklein M, Geiger M (2005) Hydroforming of patchwork blanks-numerical modeling and experimental validation. Proceedings of the 6th International Conference and Workshop on Numerical Simulation of 3D Sheet Forming Processes 526–531Google Scholar
  6. 6.
    Kinsey B, Liu Z, Cao J (2000) A novel forming technology for tailor-welded blanks. J Mater Process Technol 99:145–153CrossRefGoogle Scholar
  7. 7.
    Chan SM, Chan LC, Lee TC (2003) Tailor-welded blanks of different thickness ratios effects on forming limit diagrams. J Mater Process Technol 132:95–101CrossRefGoogle Scholar
  8. 8.
    Kinsey BL, Cao J (2003) An analytical model for tailor welded blank forming. J Manuf Sci Eng 125:344–351CrossRefGoogle Scholar
  9. 9.
    Padmanabhan R, Oliveira MC, Menezes LF (2008) Deep drawing of aluminium-steel tailor-welded blanks. Mater Des 29:154–160CrossRefGoogle Scholar
  10. 10.
    Kopp R, Wiedner C, Meyer A (2005) Flexibly rolled sheet metal and its use in sheet metal forming. Adv Mater Res 6-8:81–92CrossRefGoogle Scholar
  11. 11.
    Urban M, Krahn M, Hirt G, Kopp R (2006) Numerical research and optimisation of high pressure sheet metal forming of tailor rolled blanks. J Mater Process Technol 177:360–363CrossRefGoogle Scholar
  12. 12.
    Meyer A, Wietbrock B, Hirt G (2008) Increasing of the drawing depth using tailor rolled blanks-numerical and experimental analysis. Int J Mach Tools Manuf 48:522–531CrossRefGoogle Scholar
  13. 13.
    Neugebauer R, Altan T, Geiger M, Kleiner M, Sterzing A (2006) Sheet metal forming at elevated temperatures. CIRP Annals-Manufacturing Technology 55:793–816CrossRefGoogle Scholar
  14. 14.
    Karbasian H, Tekkaya AE (2010) A review on hot stamping. J Mater Process Technol 210:2103–2118CrossRefGoogle Scholar
  15. 15.
    Bariani PF, Bruschi S, Ghiotti A, Turetta A (2008) Testing formability in the hot stamping of HSS. CIRP Annals-Manufacturing Technology 57:265–268CrossRefGoogle Scholar
  16. 16.
    Merklein M, Wieland M, Lechner M, Bruschi S, Ghiotti A (2016) Hot stamping of boron steel sheets with tailored properties: a review. J Mater Process Technol 228:11–24CrossRefGoogle Scholar
  17. 17.
    Maikranz-Valentin M, Weidig U, Schoof U, Becker H-H, Steinhoff K (2008) Components with optimised properties due to advanced thermo-mechanical process strategies in hot sheet metal forming. Steel Research International 79:92–97CrossRefGoogle Scholar
  18. 18.
    Berglund D, Amundsson K, Hellgren L O (2008) Hot stamped components with “soft zones” for improved crashworthiness-simulation and validation of product performance. Proceedings of International Deep Drawing Research Group 675–686Google Scholar
  19. 19.
    Mori K, Okuda Y (2010) Tailor die quenching in hot stamping for producing ultra-high strength steel formed parts having strength distribution. CIRP Annals-Manufacturing Technology 59:291–294CrossRefGoogle Scholar
  20. 20.
    Kim C, Kang MJ, Park YD (2011) Laser welding of Al-Si coated hot stamping steel. Procedia Engineering 10:2226–2231CrossRefGoogle Scholar
  21. 21.
    Choi JW, Lee M-G, Barlat F, Son HS, Nam JB (2012) Hot press forming of tailor welded blank: experiments and FE modeling. ISIJ Int 52:2059–2068CrossRefGoogle Scholar
  22. 22.
    Tang B, Yuan Z, Cheng G, Huang L, Zheng W, Xie H (2013) Experimental verification of tailor welded joining partners for hot stamping and analytical modeling of TWBs rheological constitutive in austenitic state. Materials Science & Engineering A 585:304–318CrossRefGoogle Scholar
  23. 23.
    Kolleck R, Vollmer R, Both C, Breuer A (2015) Investigation of weld seam structures of tailor welded blanks for hot stamping. Key Eng Mater 639:235–242CrossRefGoogle Scholar
  24. 24.
    Kang M, Kim Y-M, Kim C (2016) Effect of heating parameters on laser welded tailored blanks of hot press forming steel. J Mater Process Technol 228:137–144CrossRefGoogle Scholar
  25. 25.
    Kim D H, Moon M B, Kim Y J, Kim Y G, Kim K S (2011) Lightweight car body manufactured through hot stamping and tailor welding of blanks. Steel Research International Special edition 414–418Google Scholar
  26. 26.
    Perez-Santiago R, Billur E, Ademaj A, Sarmiento C, Berlanga R, Altan T (2013) Hot stamping a B-pillar with tailored properties: experiments and preliminary simulation results. Proceedings of 4th International Conference Hot Sheet Metal Forming of High-Performance Steel CHS2 83–90Google Scholar
  27. 27.
    Merklein M, Allwood JM, Behrens B-A, Brosius A, Hagenah H, Kuzman K, Mori K, Tekkaya AE, Weckenmann A (2012) Bulk forming of sheet metal. CIRP Annals-Manufacturing Technology 61:725–745CrossRefGoogle Scholar
  28. 28.
    Tan CJ, Mori K, Abe Y (2008) Forming of tailor blanks having local thickening for control of wall thickness of stamped products. J Mater Process Technol 202:443–449CrossRefGoogle Scholar
  29. 29.
    Mori K, Abe Y, Osakada K, Hiramatsu S (2011) Plate forging of tailored blanks having local thickening for deep drawing of square cups. J Mater Process Technol 211:1569–1574CrossRefGoogle Scholar
  30. 30.
    Salfeld V, Matthias T, Krimm R, Behrens BA (2012) Analysis of machine influence on process stability in sheet bulk metal forming. Procedia CIRP 3:32–36CrossRefGoogle Scholar
  31. 31.
    Yoon J, Jeon H, Lee J (2013) Process design of cold forging with thick plate for seat recliner parts. Mater Des 49:449–455CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London 2016

Authors and Affiliations

  • Liyana Tajul
    • 1
    • 2
  • Tomoyoshi Maeno
    • 3
  • Takaya Kinoshita
    • 1
  • Ken-ichiro Mori
    • 1
  1. 1.Department of Mechanical EngineeringToyohashi University of TechnologyToyohashiJapan
  2. 2.School of Mechatronic EngineeringUniversiti Malaysia PerlisArauMalaysia
  3. 3.Division of Materials Science and Chemical Engineering, Faculty of EngineeringYokohama National UniversityYokohamaJapan

Personalised recommendations