Optimum parameters to minimize weld line movement in the warm forming of tailor-welded blanks

  • V. V. N. Satya Suresh
  • Srinivasa Prakash Regalla
  • Amit Kumar Gupta
Technical Paper


This paper deals with optimizing geometric parameters such as thickness ratio and weld line location, to minimize the movement of weld line during the stamping of tailor-welded blank (TWB) components. Weld line movement (WLM) is an important aspect to consider; otherwise, it leads to wrinkling and other forming-related problems. The major contributors to WLM are thickness ratio, weld line location, and strengths of the respective blanks. Selective heating is a recent technique adopted to reduce the material properties of the higher strength TWB blank by heating it locally, thus allowing a shift in the weld line. In this work, laboratory and simulation experiments were conducted under warm forming conditions on the TWB blanks. Experiments were also conducted by placing the weld line at an offset distance of ± 1 mm from the centre of blank. The situation is to choose the best possible value among thickness ratio and weld line location under the influence of selective heating to minimize the WLM. The objective function of WLM is obtained from the MINITAB statistical software by conducting ANOVA method. The optimum values of the parameters were obtained by minimizing the objective function.


Forming Dissimilar steels Heating Simulations Optimization Stamping Weld line movement 



This research was carried out with project number F MRP-6160/15 (SERO/UGC) awarded to Mr. V.V.N. Satya Suresh under the Minor research project scheme of the University Grants Commission, New Delhi, India.


  1. 1.
    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
  2. 2.
    Li J, Nayak SS, Biro E, Panda SK, GoodwinF ZhouY (2013) Effects of weld line position and geometry on the formability of laser welded high strength low alloy and dual-phase steel blanks. Mater Des 52:757–766CrossRefGoogle Scholar
  3. 3.
    Heo YM, Wang SH, Kim HY, Seo DG (2001) The effect of the drawbead dimensions on the weld-line movements in the deep drawing of tailor-welded blanks. J Mater Process Technol 113:686–691CrossRefGoogle Scholar
  4. 4.
    Hu Xiuli, Zhao Hao, Xing Zhongwen (2012) Numerical simulation on formability of tailor welded blanks with curved line under different blank holder force. J Comput Theoret Nanosci 9:1236–1241CrossRefGoogle Scholar
  5. 5.
    Cao J, Kinsey B (1999) Adaptive method and apparatus for forming tailor-welded blanks. US Patent 5,941,110Google Scholar
  6. 6.
    Tang BT, Zhao Z, Wang Y (2007) One-step FEM-based evaluation of weld line movement and development of blank in sheet metal stamping with tailor-welded blanks. Int J Adv Manuf Technol 35:268–279CrossRefGoogle Scholar
  7. 7.
    Ku TW, Kang BS, Park HJ (2005) Tailored blank design and prediction of weld line movement using the backward tracing scheme of finite element method. Int J Adv Manuf Technol 25:17–25CrossRefGoogle Scholar
  8. 8.
    Abbasi M, Hamzeloo SR, Ketabchi M, Shafaat MA, Bagheri B (2014) Analytical method for prediction of weld line movement during stretch forming of tailor-welded blanks. Int J Adv Manuf Technol 73:999–1009CrossRefGoogle Scholar
  9. 9.
    Karbasian H, Tekkaya AE (2010) A review on hot stamping. J Mater Process Technol 210:2103–2118CrossRefGoogle Scholar
  10. 10.
    Kahrimanidis A, Wortberg D, Merklein M (2015) Approach to minimize the distortion of 6xxx-aluminum tailor heat treated blanks in industrial applications. Prod Eng Res Dev 9:569–576CrossRefGoogle Scholar
  11. 11.
    Panda SK, Li J, Hernandez VHB, Zhou Y, Goodwin F (2010) Effect of weld location, orientation and strain path on forming behavior of AHSS tailor welded blanks. J Eng Mater Technol. Google Scholar
  12. 12.
    Mennecart A, Güner NB, Khalifa Tekkaya AE (2014) Effects of weld line in deep drawing of tailor welded blanks of high strength steels. Key Eng Mater 611–612:955–962CrossRefGoogle Scholar
  13. 13.
    Kumar A, Gautam V, Kumar DR (2017) Maximum bulge height and weld line displacement in hydro forming of tailor welded blanks. J Manuf Sci Eng doi 10(1115/1):4038513Google Scholar
  14. 14.
    Riahi M, Amini A, Sabbaghzadeh J, Torkamany MJ (2012) Analysis of weld location effect and thickness ratio on formability of tailor welded blank. Sci Technol Weld Join 17:282–287CrossRefGoogle Scholar
  15. 15.
    Korouyeh S, Naeini MH, Torkamany MJ, Liaghat Gh (2013) Experimental and theoretical investigation of thickness ratio effect on the formability of tailor welded blank. Opt Laser Technol 51:24–31CrossRefGoogle Scholar
  16. 16.
    Jiang M, Gong H, Wang B, Wang S, Li H, Qiu H (2015) Drawing and forming parameters of tailor-welded plates of high strength steel in non-uniform thickness. Appl Mech Mater 750:382–388CrossRefGoogle Scholar
  17. 17.
    Gautam V, Kumar DR (2017) Experimental and numerical investigations on springback in V-bending of tailor welded blanks of interstitial free steel. Proc IMechE Part B. Google Scholar
  18. 18.
    Kaya S (2016) Non isothermal warm deep drawing of SS 304: FE modeling and experiments using servo press. Int J Adv Manuf Technol 83:1047–1056CrossRefGoogle Scholar
  19. 19.
    Takuda H, Mori K, Masachika T, Yamazaki E, Watanabe Y (2003) Finite element analysis of the formability of an austenitic stainless steel sheet in warm deep drawing. J Mater Process Technol 143–144:242–248CrossRefGoogle Scholar
  20. 20.
    Bong HJ, Barlat F, Ahn DC, Kim HY, Lee MG (2013) Formability of austenitic and ferritic stainless steels at warm forming temperature. Int J Mech Sci 75:94–109CrossRefGoogle Scholar
  21. 21.
    Kopp R, Philipp F (1992) Physical parameters and boundary conditions for the numerical simulation of hot forming processes. Steel Res Int. Google Scholar
  22. 22.
    Harrison NR, Luckey SG (2014) Hot stamping of a B-pillar outer from high strength aluminium sheet AA7075. Int J Mater Manuf 7:567–573CrossRefGoogle Scholar

Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2018

Authors and Affiliations

  1. 1.Mechanical DepartmentBirla Institute of Technology and Science-Pilani, Hyderabad CampusHyderabadIndia
  2. 2.Mechanical DepartmentMahatma Gandhi Institute of TechnologyHyderabadIndia

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