Experimental and numerical investigation of forming limits in incremental forming of a conical cup

Yonggang Huang*, Jian Cao, K. S. Smith, B. Woody, J. Ziegert, M. Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

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.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36
Pages389-396
Number of pages8
Volume36
StatePublished - Oct 2 2008
EventTransactions of the North American Manufacturing Research Institution of SME - Monterrey, Mexico
Duration: May 20 2008May 23 2008

Other

OtherTransactions of the North American Manufacturing Research Institution of SME
CountryMexico
CityMonterrey
Period5/20/085/23/08

Fingerprint

Ductile fracture
Metal stamping
Process planning
Sheet metal

Keywords

  • Forming limit
  • Fracture criterion
  • Single point incremental forming (SPIF)

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Huang, Y., Cao, J., Smith, K. S., Woody, B., Ziegert, J., & Li, M. (2008). Experimental and numerical investigation of forming limits in incremental forming of a conical cup. In Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36 (Vol. 36, pp. 389-396)
Huang, Yonggang ; Cao, Jian ; Smith, K. S. ; Woody, B. ; Ziegert, J. ; Li, M. / Experimental and numerical investigation of forming limits in incremental forming of a conical cup. Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. Vol. 36 2008. pp. 389-396
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Huang, Y, Cao, J, Smith, KS, Woody, B, Ziegert, J & Li, M 2008, Experimental and numerical investigation of forming limits in incremental forming of a conical cup. in Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. vol. 36, pp. 389-396, Transactions of the North American Manufacturing Research Institution of SME, Monterrey, Mexico, 5/20/08.

Experimental and numerical investigation of forming limits in incremental forming of a conical cup. / Huang, Yonggang; Cao, Jian; Smith, K. S.; Woody, B.; Ziegert, J.; Li, M.

Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. Vol. 36 2008. p. 389-396.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Huang Y, Cao J, Smith KS, Woody B, Ziegert J, Li M. Experimental and numerical investigation of forming limits in incremental forming of a conical cup. In Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36. Vol. 36. 2008. p. 389-396