期刊
JOURNAL OF MANUFACTURING PROCESSES
卷 34, 期 -, 页码 349-355出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jmapro.2018.06.012
关键词
Edge rolling; Rolling force; Dog-bone shape; Sine function model; Dual stream function
资金
- National Key R&D Program of China [2017YFB0304100]
- National Natural Science Foundation of China [51774084, 51634002]
- Fundamental Research Funds for the Central Universities [N160704004, N170708020]
A three-dimensional mathematical model for edge rolling using sine function dog-bone shape and the dual stream function (DSF) method is established to research the plastic deformation of the slab at the vertical roll gap. A kinematically admissible velocity field is derived through DSF based on sine function model and the slab total power functional is obtained according to the upper bound theorem. The upper bound solutions of dog bone shape and rolling force are solved numerically via minimizing the total power function by using the Matlab Optimization Toolbox. Satisfactory results are given while compared with experimental data in reference and FEM simulation, with good convergence, in various rolling conditions such as engineering strain, initial thickness and roll radius.
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