Transactions of Materials and Heat Treatment

Title：Simulation analysis on fin-forming segment of cage roll-forming for HFW pipes

Authors： Hu Shengde Wu Xiaodong Xiao Yi Guo Zhiwang Huang Yinggang

Unit： Wuhan University of Science and Technology

KeyWords： fin-forming equivalent plastic strain longitudinal strain height of cross-section opening value

ClassificationCode：TG376.9

year,vol(issue):pagenumber：2015,40(3):62-66

Abstract：

Cage roll-forming has been widely used in pipe production. According to the cage roll-forming process dealing with large nonlinearity, the large deformation elastic finite element model of cage roll-forming mill was established to study the forming process. The distribution of equivalent plastic strain, the regulation of deformed geometry and the longitudinal strain distribution of edge of the strip in the fin-forming were obtained by dynamic explicit algorithm and were verified by measured results. The simulation results show that the bigger equivalent plastic strain occurs in the center and on the edge of the strip in the fin-forming. And from Fp1 to Fp3, the PEEQ curve transforms from W-shaped to U-shaped. The edge longitudinal strain is controlled less than 0.6% and do not lead to edge defects. The geometry shape transforms from an approximate U-shaped to circle with an opening on its top.

Funds：

钢铁冶金及资源利用省部共建教育部重点实验室开放基金资助项目（FMRU200903)

胡盛德（1972-），男，博士，教授通讯简介：吴晓冬（1987-），男，硕士研究生

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