There are many variations within sheet metal forming, some of which are manifest in the final geometry of the formed component. It is important that this geometric variation be quantified and measured for use in a process or quality control system. The contribution of this paper is to propose a novel way of measuring the geometric difference between the desired shape and an actual formed “U” channel. The metric is based upon measuring errors in terms of the significant manufacturing variations. The metric accords with the manually measured errors of the channel set. The shape error metric is then extended to develop a simple empirical, whole-component, springback error measure. The springback error measure combines into one value all the angle springback and side wall curl geometric errors for a single channel. Two trends were observed: combined springback decreases when the blank holder force is increased; and the combined springback marginally decreases when the die radii is increased.
A Shape Error Metric for Sheet Metal Forming and Its Application to Springback
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received April 2002; Revised December 2002. Associate Editor: S. Schmid.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Rolfe, B. F., Cardew-Hall, M. J., Abdallah, S. M., and West, G. A. W. (July 23, 2003). "A Shape Error Metric for Sheet Metal Forming and Its Application to Springback ." ASME. J. Manuf. Sci. Eng. August 2003; 125(3): 468–475. https://doi.org/10.1115/1.1580529
Download citation file:
- Ris (Zotero)
- Reference Manager