基于ABAQUS/Explicit有限元平台, 建立了规格为15.88 mm×0.84 mm的21-6-9高强不锈钢管数控绕弯成形三维弹塑性有限元模型并验证了模型的可靠性;然后采用该模型通过有限元模拟研究了不锈钢力学性能变化对管材数控绕弯成形时壁厚变化率的影响。结果表明: 弯管的壁厚变化率随着不锈钢强度系数、硬化指数的增大或屈服强度的降低而减小, 弹性模量和泊松比对壁厚变化率基本没有影响; 壁厚变化率对力学性能的敏感性由大到小依次为强度系数、硬化指数、屈服强度、弹性模量、泊松比。
所属栏目
物理模拟与数值模拟江西科技师范大学自然科学科研计划重点项目(300098010501)
收稿日期
2015/7/122015/11/8
作者单位
方军:江西科技师范大学,江西省材料表面工程重点实验室, 南昌 330013
鲁世强:南昌航空大学航空制造工程学院, 南昌 330063
王克鲁:南昌航空大学航空制造工程学院, 南昌 330063
闵旭光:江西科技师范大学,江西省材料表面工程重点实验室, 南昌 330013
备注
方军（1984-）, 男, 江西上饶人, 讲师, 博士。
引用该论文:
FANG Jun,LU Shi-qiang,WANG Ke-lu,MIN Xu-guang.Effects of Material Mechanical Properties on Wall Thickness Variation in Numerical Control Rotary Draw Bending Process of Tubes[J].Materials for mechancial engineering,2016,40(4):75～79
方军,鲁世强,王克鲁,闵旭光.材料力学性能对管材数控绕弯成形时壁厚变化的影响[J].机械工程材料,2016,40(4):75～79
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