Numerical analysis of multi-pass H-beam hot rolling processing
Hot rolling is a basic metal forming technique that is used to transform preformed shape into final products of forms more suitable for further processing.As the hot stock progresses through the forming surfaces, the shape eventually reaches a constant state.With the assumption of forming process has reached steady-state condition, a simulation technique based on elements re-meshes has been constructed to analyze the H-beam metal hot roll process.The technique includes the following approaches: the solution was halted as soon as the steady-state criteria were met, and the plane of elements, which first satisfied the steady-state criteria were written to database, SSES for short; a two-dimensional model was created to model the hot stock cooling between the two roll passes and a geometric part was generated and meshed with quadrilateral elements to transfer the nodes temperatures; a new three-dimensional model extruded from the two-dimensional model was constructed to model the next roll pass with the transfer of nodes temperatures and element integration points equivalent plastic strain(PEEQ), identifying the plastic deformation extent for the classical metal plasticity models, from the new two-dimensional model and the first three-dimensional model respectively.Gleeble-1500 tester is used to get the true stress and true plastic strain data for modeling the yield behavior of material Q235.The effectiveness of the simulation technique has been proved by a simulation of 11-pass H-beam rolling process.
H-beam multi-pass hot rolling numerical analysis microstructure evolution
He Qingqiang Sun Jia Zhao Junyou Yuan Baomin Xu lijian
School of Mechanical Engineering,China University of petroleum,Qingdao,266580,P.R.China China Merchants International Terminal (Qingdao) Co.LMD,Qingdao,266555,P.R.China
国际会议
the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))
桂林
英文
385-389
2012-08-01（万方平台首次上网日期，不代表论文的发表时间）