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大锻件锻造过程中的综合换热系数研究
英文标题:Study on comprehensive heat transfer coefficient in forging process of large forgings
作者:高鑫洲 岳峰丽 徐斌 何兴 
单位:沈阳理工大学 中国科学院金属研究所 沈阳透平机械股份有限公司 
关键词:大锻件 空冷 界面换热系数 反传热模型 有限元模拟 
分类号:TG316.2
出版年,卷(期):页码:2017,42(12):1-5
摘要:

为了准确预测实际生产中大锻件温度场的变化,以指导锻造工艺制定,采用正向实测-反向求解和正向实测模拟验证的研究方法,实测锻件空冷过程中特征点的降温曲线,利用Deform的Inverse Heat Transfer求解模块,使用反传热法计算获得锻件空冷过程中的界面换热系数,将该换热系数应用于锻造过程模拟中,得到坯料表面的温度曲线,并与实测获得的锻造过程中坯料表面的温度曲线进行对比验证。成功地实现了对700 mm×700 mm×1500 mm大锻件在锻造过程中的温度场预测。
 

In order to accurately predict the change of temperature field of large forgings in actual production and to guide the forging planning, the research methods of forwarded-measurement with reversed solution and forwarded-measurement simulation were adopted to measure the cooling curve of characteristic points during forging air-cooling process. Then, the interface heat transfer coefficient during the air-cooling process was obtained by the Inverse Heat Transfer solver of Deform and inverse heat transfer method, and the blank′s surface temperature curve was got by inputting heat transfer coefficient to the simulation of forging process, which was verified by the measured temperature. Finally, prediction of the temperature field of large forging with 700 mm×700 mm×1500 mm was successfully realized during forging.

基金项目:
国家自然科学基金重点项目(U1508215);国家重点研发项目(2016YFB0300401);辽宁百千万人才计划([2015]12)
作者简介:
作者简介:高鑫洲(1993-),男,硕士研究生 E-mail:2433280405@qq.com 通讯作者:岳峰丽(1970-),女,硕士,副教授 E-mail:Flyue@163.com
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