Predictive and control models of the spring-back in thick hull plate forming
- 48 Downloads
Hull complex plates are multidimensional curvature plates. It is difficult to adopt the traditional hot-forming method to process doubly or multiple curved plates. Multi-point forming automation equipment is a new forming process for 3D ship hull plate. However, the loading punches of traditional multi-point forming equipment are often designed in the point contact, which is easy to cause a series of defects, such as local indentations and wrinkle defects. The improved multi-point forming model with surface contact was proposed and verified with test methods. Moreover, the cold-forming process and spring-back process were simulated and analyzed with FEM for the improved multi-point forming model. The validity of the numerical method was confirmed by a series of experimental results. Finally, to ensure the forming precision, the successive approximation method was developed and verified to control the spring-back in cold-forming for curved hull plates.
KeywordsMulti-point forming Spring-back prediction FEM Processing control Successive approximation method
The authors would like to thank Professor Cheng-fang Wang, Yong Hu, Ping Yuan and Shuang-ying Li from Wuhan University of Technology, for their preliminary exploratory research.
The research project is supported by Hubei Provincial Natural Science Foundation of China (Grant No. 2018CFB607) and the Fundamental Research Funds of the Central Universities (No. 2017IVB002).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 2.Jang C-D, Moon S-C (1998) An algorithm to determine heating lines for plate forming by line heating method. Method Journal of Ship Production 14:238–245Google Scholar
- 5.Ha Y-S, Jang C-D (2007) An improved inherent strain analysis for plate bending by line heating considering phase transformation of steel. International Journal of Offshore and Polar Engineering 17(2):139–144Google Scholar
- 6.Paik J-K, Kim J-H, Kim B-J, Tak C-H (2013) Nonlinear finite element analysis of spring-back characteristics in the cold-forming process of three-dimensionally curved thick metal plates Journal of Offshore Mechanics and Arctic Engineering-Transactions of The ASME, 135Google Scholar
- 9.Li M-Z, Chen J-J, Sui Z (2000) Multi-point forming for 3D sheet metal parts. New Technology and New Process 10:27–29Google Scholar
- 10.Wang C-F, Hu Y, Li J-X, Zhang C-Y, Fang Z-Y, Mai J-W (2010) A novel forming method for 3D ship hull forming. Journal of Wuhan University of Technology (Transportation Science and Engineering) 34(3):431–434Google Scholar
- 11.Wang C-F, Yuan P, Li J-X, Hu Y (2015) Curved surface forming device for adjustable segmented mold board with square rams. United States Patent 8939754:2015Google Scholar
- 12.Yuan P, Wang C-F, Hu Y, Li J, Zhang C, Huang W, Yu F (2014) Development of large plate bending machine for shipbuilding with three-dimensional numerical control. Shipbuilding of China 55(2):122–131Google Scholar
- 16.Ablat M-A., Qattawi A. (2017) Numerical simulation of sheet metal forming: a review. The international journal of advanced manufacturing technology, 1235‑1250Google Scholar
- 18.Liu H-S, Yang Y-Y, Li C-F (2006) Reproducing kernel particle method numerical modeling of thin sheet superplastic tension forming. Mater Sci Forum:303–308Google Scholar
- 19.Zhang Y, Kim D-H, Jung D-W (2015) Spring-back of flexible roll forming bending process. Iop Conference Series: Materials Science and Engineering 103:1–6Google Scholar
- 21.Li MF, Zhang K-Y, Huang L (2006) Material mechanics. Press, ScienceGoogle Scholar
- 23.Liu Y, Xie Z-Z, Xiao H (2006) Analysis on the effects of numerical simulation precision on spring-back prediction. Stamping 5:55–58Google Scholar