Study on Formability of Tailor-Welded Blank Based on Sheet Metal Matching


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As tailor-welded blank having two or more sheet metal welded together, with different mechanical properties, coating and thicknesses, its yield strength and tensile strength are higher, but hardening exponent and elongation are lower than a single sheet. The different mechanical properties of substrates and weld movement have significant effects on TWB’s formability, different materials or thicknesses easily lead to uneven deformation and forming defects such as cracking, wrinkle and springback. This paper takes tailor-welded box-shaped part for example; the forming process and weld movement were simulated and analyzed. In this process, the weld type was ignored, only considering the weld-line position, using segmented blank holder to control the size of the blank holder force on both sides respectively. Three cases of sheet metal matching were carried out including: different thicknesses with same material, same thickness with different materials, and different thicknesses with different materials. Finally, some meaningful results were obtained.



Advanced Materials Research (Volumes 139-141)

Edited by:

Liangchi Zhang, Chunliang Zhang and Tielin Shi




J. L. Wang et al., "Study on Formability of Tailor-Welded Blank Based on Sheet Metal Matching", Advanced Materials Research, Vols. 139-141, pp. 618-621, 2010

Online since:

October 2010




[1] X G Qiu, W L Chen: The study on numerical simulation of the laser tailor-welded blanks stamping, Journal of Materials Processing Technology, (2007), pp.178-188: 128-131.


[2] S M Chan, L C Chan, T C Lee: Tailor-welded blanks of different thickness ratios effects on forming limit diagrams, Journal of Engineering Materials and Technology, Vol 132(2003), pp.95-101.


[3] Si J H, et al: Formability enhancement for Tailor-Welded blanks using blank holding force control. Journal of Manufacturing Science and Engineering, Vol 125(2003), pp.461-467.


[4] Shi Y L, et al: Impact Modeling of the Weld Line of Tailor-Welded Blank. Materials & Design, VOl 29(2008), pp.232-238.


[5] M Jie, C H Cheng, C L Chow: Experimental and Theoretical Analysis on Formability of Aluminum Tailor-welded Blanks, Journal of Engineering Materials and Technology, Vol 129(2007) no. 1, pp.151-158.