0
TECHNICAL PAPERS

Formability Enhancement for Tailor-Welded Blanks Using Blank Holding Force Control

[+] Author and Article Information
Sijun He, S. Jack Hu

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109

Xin Wu

Department of Mechanical Engineering, Wayne State University, Detroit, MI 48202

J. Manuf. Sci. Eng 125(3), 461-467 (Jul 23, 2003) (7 pages) doi:10.1115/1.1580853 History: Received August 01, 2002; Revised February 01, 2003; Online July 23, 2003
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Nakagawa, Norihiko, Ikura, Shin, Natsumi, Fumiaki and Iwata, Noritoshi, 1993, “Finite Element Simulation of Stamping a Laser-Welded Blank,” Sheet Metal and Stamping Symposium SAE Special Publications, Vol. 944, pp. 189–197.
Iwata,  Noritoshi, Matsui,  Masao, Nakagawa,  Norihiko, and Ikura,  Shin, 1995, “Improvements In Finite-Element Simulation For Stamping And Application To The Forming of Laser-Welded Blanks,” J. Mater. Process. Technol., 50(1), pp. 335–347.
Saunders,  F. I., and Wagoner,  R. H., 1996, “Forming of Tailored Welded Blanks,” Metall. Mater. Trans. A, 27(A/9), pp. 2605–2616.
Kinsey, B., Liu, Z., and Cao, J., 1999, “An Apparatus and Method For Forming Tailor-Welded Blanks,” Society of Automotive Engineers, 1999-01-0681.
Kinsey,  B., Liu,  Z. H., and Cao,  J., 2000, “A Novel Forming Technology For Tailor Welded Blanks,” J. Mater. Process. Technol., 99, pp. 145–153.
Kinsey,  B., and Cao,  J., 2001, “Enhancement of Sheet Metal Formability via Local Adaptive Controllers,” Transactions of the North American Manufacturing Research Institute of SME, XXIX, pp. 81–88.
Marciniak, Z., Duncan, J. L., and Hu, S. J., 2002, Mechanics of Sheet Metal Forming, Butterworth-Heinemann.
Swift,  H. W., 1948, “Plastic Bending Under Tension,” Engineering, 166, pp. 333–359.

Figures

Grahic Jump Location
Importance of tooling/blank match during TWB forming
Grahic Jump Location
Two-dimensional analytical model for TWB
Grahic Jump Location
Estimated BHF as a function of punch travel distance required by zero weld line movement in TWB strip drawing (0.8/1.5 mm)
Grahic Jump Location
Metal flow in vs. forming height with same BHF over two sides (4 ton/4 ton)
Grahic Jump Location
Punch friction effect on weld line movement (thickness ratio=0.7/1.5,h=50.8 mm)
Grahic Jump Location
Die friction effect on weld line movement (thickness ratio=0.7/1.5,h=50.8 mm)
Grahic Jump Location
Effect of BHF difference (ton) over the weld line displacement (thickness ratio=0.7/1.5,μ=μ12=0.05)
Grahic Jump Location
Schematic diagram of segmented binder
Grahic Jump Location
Strip drawing under different BHF ratio
Grahic Jump Location
Weld line movement under different BHF difference
Grahic Jump Location
Thickness distributions for TWB box drawing with and without BHF control
Grahic Jump Location
Comparison between TWB box drawing with and without BHF control
Grahic Jump Location
Influence of punch bottom contact length (friction coefficient 0.05, I5=I5+100)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In