• Omer Eyercioglu Department of Mechanical Engineering, Gaziantep University, Gaziantep, Turkey
  • Sevket Alacaci Department of Mechanical Engineering, Gaziantep University, Gaziantep, Turkey
  • Mehmet Aladag Department of Mechanical Engineering, Gaziantep University, Gaziantep, Turkey https://orcid.org/0000-0002-9076-0972




Springback, V-Bending, Local Heating, AHSS, Docol 1500M

Abstract [English]

Sheet metal bending is one of the important metals forming processes at ambient temperature. The usage of high-strength steel is one of the stronger materials for the construction of components in the automotive industries. However, for complex shapes, cold forming is not always sufficient, and heating the workpiece plays a major role in manufacturing these shapes. Bendability may increase with increasing forming temperature and currently, hot forming of advanced high strength steels (AHSS) is becoming more attractive. While hot forming of AHSS is beneficial for high formability, subsequent quenching is required to maintain final strength. This procedure extends the production time. In this study, temperature gradients, bending loads, and springback after V-bending were investigated. The experimental study was carried out on a 2 mm thick Docol 1500M steel at various temperatures by using a speed-controlled servo press machine. The bending regions of the specimens were locally heated to 200, 300, 400, 500, and 600oC by using a high-frequency induction heating device. The results show that; punch loads were significantly lowered with increasing the local heating temperature during bending. There were no cracks observed on the specimens. The amount of spring back is decreasing with the bending temperature and around 500oC almost no springback was measured. Negative spring back was observed for the bending temperatures higher than 500oC


Download data is not yet available.


Pablo M. Romero, Germán J. Rodríguez, Jorge L. Arias, and Joaquín Vázquez. (2006). Spring-back control in laser assisted mechanical forming of dual phase steels, Laser Materials Processing Conference, pp. 841-850. (https://doi.org/10.2351/1.5060926)

Ozturk, F., Toros, S., Kilic, S. (2009). Journal of iron and steel research. International, 16(6), pp. 41-46. (https://doi.org/10.1016/S1006-706X(14)60191-6)

Eun-Ho Lee, June-Sun Hwang, Chang-Whan Lee, Dong-Yol Yang, Woo-Ho Yang. (2014). A local heating method by near-infrared rays for forming of non-quenchable advanced high-strength steels, Journal of Materials Processing Technology 214, pp. 784– 793. (https://doi.org/10.1016/j.jmatprotec.2013.11.023)

Yuki Nakagawa, Ken-ichiro Mori, Tomoyoshi Maeno. (2018). Springback-free mechanism in hot stamping of ultra-high-strength steel parts and deformation behavior and quenchability for thin sheet, Int J Adv Manuf Technol 95, pp.459–467. (https://doi.org/10.1007/s00170-017-1203-3)

J. Yanagimotol, K. Oyamada. (2005). Springback of High-Strength Steel after Hot and Warm Sheet Forming, CIRP Annals Volume 54, Issue 1, Pages 213-216. (https://doi.org/10.1016/S0007-8506(07)60086-9)

Myoung-Gyu Lee, Sung-Joon Kim, Heung Nam Han. (2009). Finite element investigations for the role of transformation plasticity on springback in hot press forming process, Computational Materials Science 47, pp.556–567. (DOI: 10.1016/j.commatsci.2009.09.024)

Andreas Weisheit, (2009). Local laser heat treatment of ultra-high strength steels to improve formability, Production Engineering 3(4), pp.347-351. (DOI: 10.1007/s11740-009-0186-9)

Larsson, Linus. (2005). Warm Sheet Metal Forming with Localized In-Tool Induction Heating, Coden: LUTMDN/(TMMV-1060), pp.1-84 (Warm Sheet Metal Forming with Localized In-Tool Induction Heating.)

Lei Deng, Xinyun Wang, Junsong Jin, Liangjun Xia. (2020). Springback and Hardness of Aluminum Alloy Sheet Part Manufactured by Warm Forming Process Using Non-Isothermal Dies, International Conference on the Technology of Plasticity, pp. 17-22. (DOI: 10.1016/j.proeng.2017.10.1013)

Fuh-Kuo Chen., Shi Wei Liu. (2013) Die Compensation Design for Stamping A High Strength Automotive Bumper Inner, Advanced Materials Research, pp. 712-715:796-799. (https://doi.org/10.4028/www.scientific.net/AMR.712-715.796)




How to Cite

Eyercioglu, O., Alacaci, S., & Aladag, M. (2021). EXPERIMENTAL INVESTIGATION OF SPRINGBACK OF LOCALLY HEATED ADVANCED-HIGH STRENGTH STEELS. International Journal of Research -GRANTHAALAYAH, 9(3), 269–277. https://doi.org/10.29121/granthaalayah.v9.i3.2021.3811