锻压技术

基于正交试验的热冲压冷却过程数值模拟分析

英文标题：Numerical simulation of hot stamping cooling process based on orthogonal experiment

作者：张渝丁波马军伟

单位：重庆交通大学

分类号：TG386

出版年,卷(期):页码：2015,40(3):105-109

摘要：

以热冲压模具为研究对象，针对超高强度钢板热冲压成形中的冷却过程，建立热成形模具冷却系统的有限元模型，对热冲压模具的热应力与热变形大小和分布进行研究。采用ABAQUS软件对其保压淬火阶段进行热力耦合模拟仿真，并基于正交试验设计，考查了管道直径、与上型面距离、两管道间距、与侧型面距离四因素对模具热应力与热变形大小及其分布的影响。分析研究了多指标因素不同水平下，影响热冲压模具的热应力与热变形大小及其分布规律，最终确定了最优冷却水管道排布为A3B1C3D2，即管道直径为Ф10 mm，与上型面距离为4 mm，两管道间距为5 mm，与侧型面距离为5 mm。

For the cooling process of ultra-high-strength steel in hot stamping, a finite element model of the cooling system in thermoforming mold was established，the size and distribution of thermal stress and thermal deformation of hot stamping mold were studied. The stage of holding pressure quenching was simulated by ABAQUS with thermal-mechanical coupling. Based on orthogonal design, the influences of the pipe diameter，the distance to the up profile，the distance between two pipes and the distance to side profile on the size and distribution of thermal stress and thermal deformation of hot stamping mold were examined. Furthermore, their impact regulations under different levels of the multi-index factors were analyzed. The optimum cooling water piping arrangement A3B1C3D2 was ultimately determined，namely, the pipeline diameter is 10 mm，the distance to the up profile is 4 mm，the distance between two pipes is 5 mm，and distance to side profile is 5 mm.

基金项目：

重庆市科委自然科学基金“冷锻模具非线性预应力加载机制及结构优化研究”（CSTC2012jjA70001)

张渝（1975-），男，博士，副教授通讯作者：丁波（1990-），男，硕士研究生

参考文献：

［1］王荣吉，冯晓欣，张立强，等. 基于数值模拟的U形件热冲压工艺参数研究 [J]. 锻压技术，2014，39（5）：29-36.Wang R J，Feng X X，Zhang L Q，et al. Investigation for process parameters of U-shaped part hot stamping based on numerical simulation[J]. Forging ＆ Stamping Technology，2014，39（5）：29-36.
［2］刘雨阳，闵俊英，辛立久，等. 热冲压成形工艺参数对硼钢板帽形件回弹影响分析 [J]. 锻压技术，2014，39（3）：34-41.Liu Y Y，Min J Y，Xin L J，et al. Effect of hot stamping process parameters on springback of hat-shaped boron steel parts [J]. Forging ＆ Stamping Technology，2014，39（3）：34-41.
［3］赵海明. 热成形模具冷却系统数值模拟分析 [D].长春：吉林大学，2013.Zhao H M. Numerical Simulation of Cooling System of Hot Forming Die [D]. Changchun：Jilin University，2013.
［4］Ken-ichiro Mori. Smart hot stamping of ultra-high strength steel parts[J]. Transactions of Nonferrous Metals Society of China，2012，22（Z2）: 496-503.
［5］Fujita Nobuhirol，Kusumi Kazuhisa，Nonaka Toshiki，et al. Present situation and future trend of ultra-high strength steel sheets for auto-body[J]. Nippon Steel Technical Report，2013，（103）: 99-103.
［6］De Sen Yang，Wen Liu，Guang Jun Hu，et al. Study on hot forming process and spring-back of ultra-high strength steel based on ABAQUS [J]. Advanced Materials Research，2012，（482-484）：2454-2459.
［7］Wei Liu，Hong-sheng Liu，Zhong-wen Xing，et al. Effect of tool temperature and punch speed on hot stamping of ultra high strength steel[J]. Transactions of Nonferrous Metals Society of China,2012，(22)：534-541.
［8］Wei Wang，Yu Liu，Peng Fei Wen，et al. Numerical simulation on the shape of stamping part about hot forming and quenching [J]. Applied Mechanics and Materials, 2013，328：450-456.
［9］谢玲珍. 蒸汽高光注塑模具设计方法及疲劳寿命研究 [D].济南：山东大学，2011.Xie L Z. Research of Design and Fatigue Life for Steam Rapid Heating Cycle Injection Mold [D]. Jinan: Shandong University，2011.
［10］李沁怡，陈其伟. 连续热冲压中热物性参数的研究 [J]. 锻压技术，2014，39（8）：19-23.Li Q Y，Chen Q W. Research on thermo-physical parameters in continuous hot stamping [J]. Forging ＆ Stamping Technology，2014，39（8）：19-23.
［11］代尚军. 超高强度钢热成形模具冷却系统研究 [D]. 长春：吉林大学，2014.Dai S J. The Research on Hot Forming Tool′s Cooling System of HSS [D]. Changchun：Jilin University，2014.
［12］黄英. 高强度钢板热冲压模具冷却系统优化数值分析研究 [D]. 长春：吉林大学，2012.Huang Y. Optimized Numerical Analysis of Hot Stamping Tool′s Cooling System of High Strength Steels [D]. Changchun：Jilin University，2012.
［13］占亮，李霞，孙礼宾，等.基于正交试验的曲轴热锻工艺参数优化[J].锻压技术，2014，39（7）：10-13.Zhan L，Li X，Sun L B，et al. Design optimization of process parameters of crankshaft die forging based on orthogonal experiment [J]. Forging ＆ Stamping Technology，2014，39（7）：10-13.

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