@inproceedings{17117b42cc57474a8c1f16aefc246095,
title = "Experimental and numerical investigation of forming limits in incremental forming of a conical cup",
abstract = "Accurate prediction of forming limits is critical to process planning and part design. It has been found in literature that forming limit curves (FLC) generated from incremental forming (IF) processes greatly exceed the traditional forming limit curves obtained from sheet metal stamping. In this paper, a ductile fracture criterion is introduced in an effort to predict the forming limit in an incremental forming process. Based on calculated stress/strain values from the finite element simulation, the fracture initiation site and the maximum forming height of a conical cup are predicted using the ductile fracture criterion. The numerical results are compared with our experimental results and the strain-based forming limits found in literature. It is concluded that the approach has some merits, however, is not entirely satisfactory. Discussions on the causes of the discrepancy are provided.",
keywords = "Forming limit, Fracture criterion, Single point incremental forming (SPIF)",
author = "Y. Huang and J. Cao and Smith, {K. S.} and B. Woody and J. Ziegert and M. Li",
year = "2008",
language = "English",
isbn = "0872638618",
series = "Transactions of the North American Manufacturing Research Institution of SME",
pages = "389--396",
booktitle = "Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36",
note = "Transactions of the North American Manufacturing Research Institution of SME ; Conference date: 20-05-2008 Through 23-05-2008",
}