| 半固态镁合金压铸充型过程的数值模拟研究 |
| |
| 引用本文： | 常庆明,栗晨星,王涛,武琳,柯燕,田巧珍,邓焕喜.半固态镁合金压铸充型过程的数值模拟研究[J].武汉科技大学学报(自然科学版),2010,33(5). |
| |
| 作者姓名： | 常庆明 栗晨星 王涛 武琳 柯燕 田巧珍 邓焕喜 |
| |
| 作者单位： | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北,武汉,430081 |
| |
| 基金项目： | 湖北省教育厅重点科研资助项目 |
| |
| 摘 要： | 在考虑半固态AZ91D镁合金充型过程的压力和速度变化特征的基础上,建立了模拟计算所需要的表观黏度数学模型.采用ProCAST软件,对半固态镁合金压铸充型过程进行模拟,预测卷气、夹杂物产生的可能性,以便优化其工艺参数和工艺方案.结果表明,与全液态镁合金充型过程相比,半固态金属充型平稳,模具寿命长,铸件质量好;改变内浇道和溢流槽的设置位置和数量,还可有效地减少铸件本身内部杂质,提高铸件质量.
|
| 关 键 词： | 半固态 数值模拟 表观黏度 充型工艺 |
Mold filling process of semi-solid Mg alloy in die casting by numerical simulation |
| |
| Chang Qingming,Li Chenxing,Wan Tao,Wu Lin,Ke Yan,Tian Qiaozhen,Deng Huanxi.Mold filling process of semi-solid Mg alloy in die casting by numerical simulation[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2010,33(5). |
| |
| Authors: | Chang Qingming Li Chenxing Wan Tao Wu Lin Ke Yan Tian Qiaozhen Deng Huanxi |
| |
| Institution: | Chang Qingming,Li Chenxing,Wan Tao,Wu Lin,Ke Yan,Tian Qiaozhen,Deng Huanxi(Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China) |
| |
| Abstract: | Mold filling process of semi-solid Mg alloy in die castings is a transient process with various fluid viscosities.Based on the variation characteristics of filling pressure and velocity during mold filling process of semi-solid AZ91D alloy,a mathematical model of apparent viscosity for numerical calculation is established.The mold filling process of semi-solid Mg alloy in die castings is simulated by employing ProCAST and the possibility of involved gas and inclusions is predicted.The best technique is dete... |
| |
| Keywords: | semi-solid numerical simulation apparent viscosity mold filling process |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
