优化结果表明，板坯头尾部失宽量大幅度减小，失宽区域长度也有所缩短。
The results show the width deviation at ends is largely decreased and the length of the width deviation area is shortened.
为了分析定宽过程中板坯头部失宽的变化规律，利用数值模拟的方法建立了板坯侧压的有限元模型。
In order to analyze the rules of head width reduction of slab during side pressing, a finite element model was established by method of numerical simulation.
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