Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (1): 144-148.doi: 10.3969/j.issn.1000-565X.2010.01.028

• Mechanical Engineering • Previous Articles    

Numerical Analysis of Multi-Pass Rough Rolling Process of H-Beam

He Qing-qiang1 Sun Jia2  Yuan Bao-min1  Zhao Jun-you1 Jin Tao 1   

  1. 1. College of Mechanical and Electronic Engineering, China University of Petroleum, Dongying 257061, Shandong, China; 2. Qingdao Bonded Logistic Park, Qingdao 266555, Shandong, China
  • Received:2008-11-10 Revised:2009-01-09 Online:2010-01-25 Published:2010-01-25
  • Contact: 贺庆强（1978-），男，博士，副教授，主要从事金属塑性成形过程数值分析研究． E-mail:heqingqiangcn@yahoo.com.cn
  • About author:贺庆强（1978-），男，博士，副教授，主要从事金属塑性成形过程数值分析研究．
  • Supported by:

    中国石油大学博士基金资助项目(Y070318)

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Abstract:

In order to analyze the reasonability of the existing shaped-metal rolling process, the microstructure evolution and the rolling force must besynthetically considered. This paper proposes an integrated numerical analysis procedure to simulate the multi-pass rough rolling process of H-beam, establishes a high-temperature yield stress model and an austenite-grain evolution model based on the thermal simulation and the metallographic observation, and presents a multi-pass simulation method through a re-meshing procedure. Simulated results of an 11-pass rough rolling process of a typical-size H-beam show that the calculated rolling force accord well with the measured ones, and that the austenite grains at the web can be apparently fined after the rough rolling.

Key words: hot rolling, plastic deformation, H-beam, computer simulation