| 基于响应面法的铝合金间接挤压铸造工艺研究 |
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| 引用本文： | 陈利文,侯华,靳玉春,赵宇宏,康永生.基于响应面法的铝合金间接挤压铸造工艺研究[J].稀有金属材料与工程,2018,47(4):1174-1179. |
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| 作者姓名： | 陈利文 侯华 靳玉春 赵宇宏 康永生 |
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| 作者单位： | 中北大学 |
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| 基金项目： | 国家科技部国际科技合作项目(2014DFA50320)；国家自然科学基金(No.51574207,51574206,51204147,51274175)；山西省国际科技合作项目(2013081017、2012081013) |
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| 摘 要： | 为研究间接挤压铸造工艺,选取ZL101铝合金,以孔隙率为指标,首先通过单因素实验,分析了挤压压力、模具温度与比例系数3个因素对孔隙率的影响。然后采用Box-Behnken实验设计方法来设计响应面实验,建立了间接挤压铸造工艺参数与孔隙率相互关系的预测模型,方差分析结果表明,实验结果和数学模型拟合良好。通过对各个因素交互作用的响应面进行分析,得知模具温度和挤压压力对孔隙率的影响存在显著的交互作用,模具温度和比例系数、比例系数和挤压压力对孔隙率的影响不存在显著的交互作用。通过对环形件浇注系统的直浇道边缘部位进行金相检测分析,得知由于压力的施加,会使已经凝固的金属壳层发生不均匀的塑性流动。
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| 关 键 词： | 间接挤压铸造 响应面法 孔隙率 塑性流动 |
| 收稿时间： | 2016/4/13 0:00:00 |
| 修稿时间： | 2016/6/1 0:00:00 |
The research of aluminum alloy indirect squeeze casting process based on response surface method |
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| Chen Liwen,Hou Hu,Jin Yuchun,Zhao Yuhong and Kang Yongsheng.The research of aluminum alloy indirect squeeze casting process based on response surface method[J].Rare Metal Materials and Engineering,2018,47(4):1174-1179. |
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| Authors: | Chen Liwen Hou Hu Jin Yuchun Zhao Yuhong and Kang Yongsheng |
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| Affiliation: | North University of China,Research Center of Non-Ferrous Metals Liquid Forming Technology of Shanxi Province,North University of China,Research Center of Non-Ferrous Metals Liquid Forming Technology of Shanxi Province,North University of China,Research Center of Non-Ferrous Metals Liquid Forming Technology of Shanxi Province,North University of China,Research Center of Non-Ferrous Metals Liquid Forming Technology of Shanxi Province,North University of China,Research Center of Non-Ferrous Metals Liquid Forming Technology of Shanxi Province |
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| Abstract: | In order to study indirect squeeze casting process, we selected ZL101 aluminum alloy with porosity as indicators and analyzed the effect of process parameters of pressure, die temperature and proportionality factor on porosity. Box-Behnken design of experiment have been developed to design response surface experiment and regression model of the relationship between the indirect squeeze casting process parameters and porosity have been established. ANOVA result shows that the fitting effect of the experimental results and the mathematical model is good. The effect of die temperature and pressure on porosity has certain interaction but the effect of die temperature and proportionality factor or the effect of proportionality factor and pressure on porosity does not exist significant interaction by analyzing response surface of interaction of various factors. Due to the applied pressure, the congealed metal shell will happen uneven plastic flow by metallographic testing analysis of the edge of sprue in gating system parts. |
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| Keywords: | Indirect squeeze casting Response surface methodology porosity plastic flow |
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