Formability of Mash Seam Welded Blanks: Effects of Welding Set-Up Conditions

Paper #:
  • 950923

Published:
  • 1995-02-01
Citation:
Bhatt, K., Eisenmenger, M., and Shi, M., "Formability of Mash Seam Welded Blanks: Effects of Welding Set-Up Conditions," SAE Technical Paper 950923, 1995, https://doi.org/10.4271/950923.
Pages:
9
Abstract:
It is known that the formability of tailored welded blanks depends on the welding set-up conditions. Little information is available on the correlation between the formability of welded blanks and weld set-up conditions. In this investigation, effects of mash seam welding parameters of weld current, weld force, material overlap and planish on formability performance of welded blanks are studied. The systematic design of experiments approach is used to identify the key weld parameters influencing the formability performance of welded blanks. It is found that high weld force decreases formability of welded blanks and high weld force coupled with a small material overlap results in very low forming limit of the weld zone. Weld current has little effect on formability of welded blanks and planishing significantly reduces it. Overall, the mash seam welded blanks produced with appropriate weld set-up conditions are robust with respect to formability. The formability performance of mash seam welded blanks is equivalent to laser welded blanks with the same material combination.
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