摘要
大规格铝厚板淬火温度-应力场演变规律的揭示需要实验来研究和验证,特别是对大试件,通过实验来获得和控制这些条件参数就显得尤为重要,但淬火实验会受到试件、实验硬件和淬火介质等的约束,从而影响到淬火过程的仿真建模。为了使仿真分析与实验结果相吻合,本文充分考虑了实验外场条件的影响,从试件保温和转移、换热系数的求取和边界条件的确定三个方面分析了存在的问题,并给出了解决方案,以便通过实验来完善对淬火模型的准确描述。
The evolution mechanism of temperature-stress field during quenching about large-scale aluminum alloy plate was researched and tested by quenching. Especial for large samples, it is very important to obtain and control these conditions by experiment. But the experiment, which is restricted by sample, experimental hardwares, quenching medium and so on, affects the simulation and modeling of quenching. In order to make numerical simulation match to experimental data, the important external conditions must be fully considered. For optimizing an exact mathematic description about quenching, several problems were analyzed from keeping temperature and moving, heat transfer coefficient and boundary conditions of sample, and the solution methods were given.
出处
《热加工工艺》
CSCD
北大核心
2008年第6期50-52,55,共4页
Hot Working Technology
基金
国家重点基础研究发展规划项目(2005CB623708)
关键词
大规格铝厚板
淬火
large-scale aluminum alloy plate
quenching
