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Abstract：
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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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Funds：
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江苏省高校品牌专业建设支撑项目（PPZY2015C234）
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AuthorIntro：
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王传红（1972-），男，学士，讲师
E-mail：1694320850@qq.com
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Reference：
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