基于AnyCasting大型薄壁鞍座铸造工艺优化  

Casting Process Optimization of Large Thin-walled Saddle Based on AnyCasting

作　　者：王海啸 丛建臣 王进玲 朱玉麒 李浩 袁伟 郭前建[1] WANG Haixiao;CONG Jianchen;WANG Jinling;ZHU Yuqi;LI Hao;YUAN Wei;GUO Qianjian(School of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China;Tianrun Industry Technology Co.,Ltd.,Weihai 264400,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255049 [2]天润工业技术股份有限公司技术中心,山东威海264400

出　　处：《铸造技术》2023年第3期293-297,共5页Foundry Technology

基　　金：国家自然科学基金(12202251,51805299);中国博士后科学基金(2022M712393,2021M702024);山东省重点研发计划(2019GGX104081,2019GGX104033)。

摘　　要：针对大型薄壁铸件鞍座铸造过程中易产生缩松、缩孔缺陷等问题,基于AnyCasting模拟软件对鞍座的充型和凝固过程进行了模拟。根据模拟结果分析缩松、缩孔缺陷的位置分布,发现铸件内部有缩松、缩孔现象产生,并通过实际浇注试验对比缺陷位置以验证模拟结果的可信性。采用在热节位置添加内冷铁的改进方案,结果表明,原缺陷产生位置在凝固过程中优先凝固,消除了缩松、缩孔缺陷,为类似薄壁铸件实际生产提供相应指导。For large thin-walled saddle casting,the shrinkage cavity and porosity easily occur in the casting process.Based on the AnyCasting simulation software,the filling and solidification process of the saddle was simulated.According to the simulation results,the position distribution of the shrinkage cavity and porosity was analysed.The shrinkage cavity and porosity are found to exist in the casting,and the defect location is compared with the actual casting test to verify the credibility of the simulation results.The improvement scheme of adding internal cooling iron at the hot spot position was adopted.The results show that the original defect position is solidified ahead of other parts of the cast,and shrinkage defects are eliminated effectively,which provides corresponding guidance for the actual production of similar thin-walled castings.

关 键 词：鞍座 数值模拟 工艺优化 铸造缺陷 

分 类 号：TG24[金属学及工艺—铸造] O241[理学—计算数学]