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摘要：
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根据花生管冷弯成形的轧辊配辊方案和成形机组参数，在ABAQUS中建立了符合实际工况的管坯和轧辊模型，并采用显式算法对成形过程进行了全流程仿真。通过对仿真结果中局部成形面的分析和下凹部分的中点在Y方向位移量数值的对比，发现管坯在进入第3道次后发生了过多变形，以至于截面尺寸减小而未与轧辊成形面接触。在此基础上，采用减少第3道次和增加第5道次变形量的方法对轧辊的孔形进行了优化，对优化后的配辊方案进行了模拟仿真和生产验证。结果表明，有限元仿真可以预测花生管在成形过程中的缺陷，并能对轧辊孔形设计提供有益的参考。
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According to the roll arranging program and forming unit parameters of peanut tube in cold bending, the tube and roll model fitting for actual conditions were established by ABAQUS, and the whole process was simulated by explicit algorithm. Compared of the analysis of local forming surface in the simulation result and the displacement of midpoint of concave part in the Y direction, the tube was excessively deformed after entering the third pass so that the cross-sectional size was reduced without contacting the roll forming surface. On this basis, the hole shape of the roll was optimized by reducing deformation of the third pass and increasing deformation of the fifth pass, and the simulation and production verification of the optimized roll plan were carried out. The results show that the finite element simulation can predict the defects of peanut tube in forming process and provide a useful reference to the hole shape design of the roll.
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基金项目：
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江苏省高校品牌专业建设支撑项目（PPZY2015C234）
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作者简介：
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王传红（1972-），男，学士，讲师
E-mail：1694320850@qq.com
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