Affiliation:
1. Department of Mechanical Engineering, Northwestern University, Evanston, IL 60201
2. Department of Mechanical Engineering, University of New Hampshire, Durham, NH 03824
Abstract
The forming of sheet metal into a desired and functional shape is a process, which requires an understanding of materials, mechanics, and manufacturing principles. Furthermore, producing consistent sheet metal components is challenging due to the non-linear interactions of various material and process parameters. One of the major causes for the fabrication of inconsistent sheet metal parts is springback, the elastic strain recovery in the material after the tooling is removed. In this paper, springback of a steel channel forming process is controlled using an artificial neural network and a stepped binder force trajectory. Punch trajectory, which reflects variations in material properties, thickness and friction condition, was used as the key control parameter in the neural network. Consistent springback angles were obtained in experiments using this control scheme.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference31 articles.
1. “Taking on the “Springback” Challenge,” 1995, United States Council for Automotive Research, fall newsletter.
2. Karafillis, A. P., and Boyce, M. C., 1996, “Tooling and Binder Design for Sheet Metal Forming Compensating Springback Error,” Int. J. Mach. Tools Manuf., 36(4), pp. 503–526.
3. Ghouati, O., Joannic, D., and Genlin, J. C., 1998, “Optimization of Process Parameters for the Control of Springback in Deep Drawing,” NUMIFORM’98: Sixth International Conference on Numerical Methods in Industrial Forming Processes, Enschede, Netherlands, June 1998.
4. Davies, R. G., and Liu, Y. C., 1984, “Control of Springback in a Flanging Operation,” Journal of Applied Metalwork, 3(2), pp. 142–147.
5. Marron, G., and Bouhelier, C., 1995, “Bending of High Strength Steels. Prediction and Control of Springback,” Revue de Metallurgie, Cahiers d’Informations Techniques (France), 92(1), pp. 121–130.
Cited by
43 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献