Metals and Materials International

, Volume 7, Issue 4, pp 319–327 | Cite as

A study on forming the tailor welded T-section

  • Joo-Pyo Hong
  • Heon-Young Kim
  • Byung-Hee Jeon
  • Soo-Ik Oh


Tears and wrinkles were generated during the forming of a B-pillar, a component of the automotive side-frame. Employing tailor-welded blanks in the B-pillar, a stretch flanging condition gave rise to such forming problems as tearing along the weld bead. The authors simplified B-pillar lower part to a T shaped section to investigate the forming behaviors of the tailor-welded blanks. The effects of the weld line locations and the section end shapes on tearing and wrinkling were studied by way of finite element simulations and several experiments. An appropriate weld bead modeling technique was selected producing a deformation pattern similar to those of the experiments. The concept of the counter-punch was introduced to eliminate body wrinkles.


sheet metal forming tearing wrinkling tailor-welded blanks (TWB) finite element method (FEM) 



Open Section


Closed Section


Step location 1, 10 mm away from the center


Step location 2, 20 mm away from the center


Step location 3, 30 mm away from the center


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Copyright information

© Springer 2001

Authors and Affiliations

  • Joo-Pyo Hong
    • 1
  • Heon-Young Kim
    • 2
  • Byung-Hee Jeon
    • 3
  • Soo-Ik Oh
    • 1
  1. 1.School of Mechanical and Aerospace EngineeringSeoul National UniversitySeoulKorea
  2. 2.Division of Mechanical Engineering and MechatronicsKangwon National UniversityChunchonKorea
  3. 3.Department of Machine DesignInduk Institute of TechnologySeoulKorea

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