Transactions of Materials and Heat Treatment

Title：Numerical simulation of hot stamping cooling process based on orthogonal experiment

Authors： Zhang Yu Ding Bo Ma Junwei

Unit： Chongqing Jiaotong University

KeyWords： hot stamping cooling water piping orthogonal experiment numerical simulation ABAQUS

ClassificationCode：TG386

year,vol(issue):pagenumber：2015,40(3):105-109

Abstract：

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.

Funds：

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

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