Springback Analysis of TC4 Titanium Alloy Complex Part with Double Curvature under Single Point Incremental Forming Process

Abstract:

To make the structure of aircraft meet the aerodynamic requirements, complex lightweight structures such as double curvature shape and high-strength lightweight materials such as titanium alloy are generally used in design and forming of aircraft skin parts. But the forming processes and problems aimed to this kind of parts remain to be investigated further now. In this paper, based on single point incremental forming process, the TC4 titanium alloy aircraft parts with a complex double curvature was studied. In order to reduce the springback during the forming process an appropriate addendum surface was added to the part surface, and then ABAQUS software was applied to carry out numerical simulation of the forming and springback process. The results show that springback of complex titanium part with double curvature is small at both ends of part while large in the middle and the distribution of springback orientation depends on the curvature. For that the part is difficult to form by single point incremental forming process without springback compensation, so the tool path needs to be improved firstly. The simulation results can play a role for guiding the parameters selection and the compensated surface design of single point incremental forming process which can achieve the cold forming of parts with complex structure for poor formability materials.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1094-1098
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1094
• Online since: February 2012
• Authors: Fen Qiang Li, Jian Hua Mo
• Keywords: Double Curvature Complex Part, Single Point Incremental Forming (SPIF), Springback Analysis, TC4 Titanium Alloy

References

[1] Jianhua Mo, Chunsheng Ye, Shuhuai Huang et al. Aeronautical manufacturing technology, Vol. 12 (2002) , pp.25-27,In Chinese.

[2] Jeswiet J, Micari F, Hirt G et al. CIRP Annals - Manufacturing Technology, Vol. 54 (2005), pp.88-114.

[3] Hongjun Lv, Wangyang Yu, Qi Wang, et al. Journal of Tianjin polytechnic university, Vol. 6 (2007) pp.59-65, In Chinese.

[4] Qinglai Zhang, Hugui Xiao, Hailing Guo, et al. The Chinese Journal of Nonferrous Metals, Vol. 5 (2009), pp.800-807, In Chinese.

[5] Jianhua Mo, Fei Han. China Mechanical Engineering, Vol. 19(2008), pp.491-497, In Chinese.

[6] Emmens WC, Sebastiani G, van den Boogaard AH. Journal of Materials Processing Technology, Vol. 210 (2010), pp.981-997.

DOI: 10.1016/j.jmatprotec.2010.02.014

[7] Fan G, Sun F, Meng X, et al. The International Journal of Advanced Manufacturing Technology, Vol. 49 (2010), pp.941-947.

[8] Toshiyuki Suzuki, Nobuyuki Sano. Plastic processing, Vol. 52 (2011), pp.579-583.

[9] Jie Liu: Study on Sheet Metal Digital Incremental Forming Technology and its Path Generation (Huazhong University of Science and Technology, Wuhan 2003), In Chinese.

[10] Wenxing Gan: Study on Sheet Metal CNC Single Point Incremental Forming and Springback Simulation (Huazhong University of Science and Technology, Wuhan 2003), In Chinese.