Thermal contact conductance estimation and experimental validation in hot stamping process

被引：22
作者：
Wang Chao [1 ]
Zhang YiSheng [1 ]
Tian XiaoWei [1 ]
Zhu Bin [1 ]
Li Jian [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
来源：
SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2012年 / 55卷 / 07期
关键词：
high strength steel; thermal contact conductance; hot stamping;
D O I：
10.1007/s11431-012-4871-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The variation in temperature of the blank would make major contribution to the mechanical properties of final component in hot stamping of ultra high strength steel (UHSS). It is important to use accurate thermal contact conductance (TCC) to carry out finite element simulation of hot stamping for reliable caculation results. In this paper, a flat compression test was performanced on a servo press. A fast response temperature measurement and data acquisition system was designed to obtain the temperature history of blank and die under different pressures. The thermal contact conductance between blank and die was got using an optimization algorithm. The error between the temperature curves using calculated thermal contact conductance and the curves of measurement temperature was analyzed. Result shows that reliable simulation results of temperature can be got through accurate thermal contact conductance.
引用
收藏
页码：1852 / 1857
页数：6
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