Fracture Prediction of Sheet Metal Incremental Forming Based on Oyane Criterion

被引：0
|
作者：
Li J. [1 ]
Gong P. [1 ]
Yang S. [1 ]
Wang W. [1 ]
机构：
[1] College of Materials Science and Engineering, Chongqing University, Chongqing
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2018年 / 45卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Fracture prediction; Incremental forming; Mathematical model; Oyane criterion; Process parameters;
D O I：
10.16339/j.cnki.hdxbzkb.2018.12.007
中图分类号：
学科分类号：
摘要：
In order to solve the fracture defects in incremental forming, the Oyane criterion was introduced into numerical simulation, and the forming limit of sheet metal in incremental forming was effectively predicted. Firstly, based on DC56D+Z plate and its material constants of the Oyane criterion, the critical value of fracture integral (I=4) was determined by experiment and numerical simulation. Afterwards, by using response surface methodology, a nonlinear model between the process parameters (forming angel α, interlayer spacing Δz and diameter of tool head d) and I was established, and the effectiveness of the model was verified by a parametric analysis. It is found that the value of I can be effectively predicted by the numerical model. The value of I increases with the increase of α, Δz and d. The influence of α, Δz and d on I value gradually decreases in sequence. In addition, the relative large interaction effects of α&Δz and α&d are found. © 2018, Editorial Department of Journal of Hunan University. All right reserved.
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页码：46 / 52
页数：6
相关论文
共 16 条
  • [1] Kochan A., Dieless forming, Assembly Automation, 21, 4, pp. 321-323, (2001)
  • [2] Ambrogio G., Filice L., Ratinif L., Et al., Process mechanics analysis in single point incremental forming, AIP Conference Proceedings, 712, 1, pp. 922-927, (2004)
  • [3] Mattins P.A.F., Bay N., Skjoedt M., Et al., Theory of single point incremental forming, CIRP Annals-Manufacturing Technology, 57, 1, pp. 247-252, (2008)
  • [4] Nimbalkar D.H., Nandedkar V.M., Review of incremental forming of sheet metal components, International Journal of Engineering Research & Applications, 3, 5, pp. 39-51, (2013)
  • [5] Durgun I., Sakin A., Automobile sheet metal part production with incremental sheet forming, Pamukkale University Journal of Engineering Sciences, 22, 1, pp. 8-16, (2016)
  • [6] Liu G., The application of single point incremental forming technology of sheet metal in bus prototyping, Advanced Materials Research, 338, pp. 46-55, (2011)
  • [7] Duflou J.R., Lauwers B., Verbert J., Et al., Medical application of single point incremental forming: Cranial plate manufacturing, Journal of the American Medical Association, 90, 23, pp. 1867-1869, (2005)
  • [8] Hirt G., Junk S., Witulsky N., Incremental sheet forming: quality evaluation and process simulation, Proceeding of the 7th ITCP, pp. 925-930, (2002)
  • [9] Hussain G., Gao L., Hayat N., Et al., A new formability indicator in single point incremental forming, Journal of Materials Processing Technology, 209, 9, pp. 4237-4242, (2009)
  • [10] Huang Y.M., Chien K.H., The formability limitation of the hole-flanging process, Journal of Materials Processing Technology, 117, 1-2, pp. 43-51, (2001)
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