This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Formability of Mash Seam Welded Blanks: Effects of Welding Set-Up Conditions
Annotation ability available
Sector:
Language:
English
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.
Recommended Content
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.Also In
References
- Azuma K. Ikemoto K. Sugiura H. Arima K. Takasago T. “Press Formability of Laser welded Blank” IDDRG Working Group I 1990
- Radlmayr K.M. Szinyur J. “Laser Welded Sheet Panels for the Body in White” IDDRG Working Group I 1991
- Natsumi F. Ikemoto K. Sugiura H. Yanagisawa T. Azuma K. “Laser Welding Technology for Joining Different Sheet Metals for One-piece Stamping” JSAE Review 12 3 58 63 1991
- Neiheisel G.L. “High Strength Laser Welding of Deep Drawing Low Carbon Steel” Laser Materials Processing 150 156 1988
- Prange W. Schneider C. “A New Material for New Ways of Design” SAE Paper No. 920429 1992
- Lorenzen T.J. Truss L.T. “DEXPERT - Design of Experiments Using Expert Reasoning Tools” Research Publication GMR-6778 GM Research Laboratories August 1989
- Shi M.F. Pickett K.M. Bhatt K.K. “Formability Issues in the Application of Tailor Welded Blank Sheets” Sheet Metal and Stamping Symposium (SAE Publication # SP-944) 27 35 SAE Technical Paper No. 930278 1993
- ASTM Standards: Standard Test Methods and Definition for Mechanical Testing of Steel Products Subsize Specimen - A370
- Ghosh A.K. “The Effect of Lateral Drawing-in on Stretch Formability” Metal Engineering Quarterly 15 53 64 1975
- Marciniak Z. Kuczynski K. “Limit Strains in the Process of Stretch Forming Sheet Metal” Int. J. of Mech. Sci. 9 609 620 1967
- Siekirk J.F. “A Systems Approach to Sheet Metal Forming Process Control” Proc. of 15th IDDRG Congress Dearborn, Michigan 1 7 1988
- Pickett K.M. Shi M.F. Bhatt K.K. “Structure and Property Relationships of Resistance Mash Seam Welded Tailored Blanks with Post Heat Treatment” Microstructural Science 20 87 102 1993
- Eisenmenger M. Bhatt K.K. Shi M.F. “Influence of Laser Welding Parameters on Formability and Robustness of Blank Manufacturing: An Application to a Body Side Frame” 1995 SAE Congress