Improving formability in sheet metal stamping with active drawbead technology

Journal of Engineering Materials and Technology, Transactions of the ASME

Volumn 123, Issue 4, 2001, Pages 504-510

  Bohn, M L ^a   Xu, S G ^b   Weinmann, K J ^c   Chen, C C ^c   Chandra, A ^d  

^a Pactiv Corp   (United States)

^b General Motors   (United States)

^c Michigan Technological University   (United States)

^d Iowa State University   (United States)

Author keywords

Aluminum sheet; Drawbeads; Formability

Indexed keywords

EID: 9444288471     PISSN: 00944289     EISSN: 15288889     Source Type: Journal    
DOI: 10.1115/1.1395577     Document Type: Article

References (15)

1. Ahmetoglu, M. A., Coremans, A., Kinzel, G. L., and Altan, T., 1993, “Improving Drawability by Using Variable Blank Holder Force and Pressure in Deep Drawing of Round and Nonsymmetric Parts,” SAE Paper No. 930287, Detroit, Michigan.
2. Nine, H. D., 1978, Drawbead Forces in Sheet Metal Forming, Mechanics of Sheet Metal Forming, D. P. Koistinen and N. M. Wang, eds., Plenum Press, pp. 179-211.
3. Tufekci, S. S., Wang, C. T., Kinzel, G. L., and Altan, T., 1994, “Estimation and Control of Drawbead Forces in Sheet Metal Forming,” SAE Paper No. 940941.
4. Xu, S. G., Bohn, M. L., and Weinmann, K. J., 1997, “Drawbeads in Sheet Metal Stamping,” SAE Paper No. 970986, Detroit, Michigan.
5. Cao, J., and Boyce, M. C., 1993, “Draw Bead Penetration as a Control Element of Material Flow,” SAE Paper No. 930517, Detroit, Michigan.
6. Michler, J. R., Weinmann, K. J., Kashani, A. R., and Majlessi, S. A., 1994, “A Strip-drawing Simulator with Computer-controlled Drawbead Penetration and Blankholder Pressure,” J. Mater. Process. Technol., 43, pp. 177-194.
7. Michler, J. R., Bohn, M. L., Kashani, A. R., and Weinmann, K. J., 1995, “Feedback Control of the Sheet Metal Forming Process Using Drawbead Penetration as the Control Variable,” Trans. NAMRI/SME, 23, pp. 71-76.
8. Xu, S. G., and Weinmann, K. J., 1996, “An Investigation of Drawbead Control in Rectangular Box Forming by Finite Element Modeling,” Trans. NAMRI/SME, 24, pp. 137-142.
9. Li, R., Weinmann, K. J., and Chandra, A., 1999, “The Use of Active Drawbeads in the Forming of Non-symmetric Aluminum Panels,” Trans. NAMRI/SME, 27, pp. 13-18.
10. Bohn, M. L., Jurthe, S. U., and Weinmann, K. J., 1998, “A New Multi-point Active Drawbead Forming Die: Model Development for Process Optimization,” SAE Paper No. 980076, Detroit, Michigan.
11. Xu, S. G., 1998, “On the Formability of Sheet Metals—Part A: Predition of Forming Limits Based on Hill’s 1993 Yield Criterion, Part B: Effect of Drawbeads on Sheet Formability,” Ph.D. dissertation, Michigan Technological University.
12. Bohn, M. L., Weinmann, K. J., and Michler, J. R., 1996, “A New Concept for a Hydro-Mechanical Press Conversion for Sheet Metal Forming Research,” Technical Papers of NAMRI/SME, pp. 95-99.
13. Bohn, M. L., and Weinmann, K. J., 2000, “Open Loop Optimization of the Sheet Metal Drawing Process with Active Drawbeads,” Trans. NAMRI/SME, 28, pp. 21-26.
14. Shivpuri, R., 2000, Personal Communication.
15. Graf, A., and Hosford, W., 1994, “The Influence of Strain Path Changes on Forming Limit Diagrams of A16111-T4,” Int. J. Mech. Sci., 36, pp. 897-910.