ZHAO Zhang-feng, YAO Shi-ze, ZHANG Xian, ZHONG Jiang, SHEN Bin

(The MOE Key Laboratory of Mechanical Manufacture and Automation, Zhejiang

University of Technology, Hangzhou 310014, China)

Abstract: In order to building a resourcesaving society, it is worth promoting that metal rolling technology, as a efficient and economical means of production, is little cutting or no machining. Aiming at improving the  accuracy of rolling, based on the theory of the rolling and the general finite element analysis software Deform3D, the finite element model was established for a flat rolled pieces. A successful simulation was done for doublepass rolling, with using appropriate loading and constraints. All kinds of rolling factors such as thickness of work piece, speed of roll, diameter of roll, and temperature were analyzed by the effect on the rolling precision and power. And a rolling was carried out on a single and double pass rolling simulation, and the equivalent strain and equivalent stress situations of the rdling was analyzed. The results indicate that the accuracy of doublepass rolling is between 0.0054 and 0.1072, It is played a vital role in improving the accuracy of rolling, the rationality of the finite element model is validated, it is an important directive significance for manufacture.

Key words: flat steel; rolling; finite element simulation; accuracy