| 铝合金叶轮半固态锻造成形技术研究 |
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| 引用本文： | 王卫卫,韩飞,宋亮,罗守靖.铝合金叶轮半固态锻造成形技术研究[J].特种铸造及有色合金,2012,32(5):426-429. |
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| 作者姓名： | 王卫卫 韩飞 宋亮 罗守靖 |
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| 作者单位： | 哈尔滨工业大学(威海)材料科学与工程学院 |
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| 摘 要： | 研究了7A09铝合金叶轮的半固态精密锻造成形,提出了直接加热-等温处理制备大直径半固态组织坯料的工艺方法,探讨了大直径坯料组织制备中应该注意的问题.采用数值模拟对叶轮的半固态成形过程及主要工艺参数的影响进行了分析,并以分析结果为依据实现了叶轮的半固态锻造成形.对半固态成形锻件的热处理工艺进行了研究,获得了良好的综合力学性能指标,即:抗拉强度≥500 MPa,伸长率≥9％,硬度(HB)≥160.
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| 关 键 词： | 铝合金 半固态成形 叶轮 |
Preparation of Aluminum Alloy Impeller by Semi-Solid Precision Forging |
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| Wang Weiwei
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Han Fei
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Song Liang
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Luo Shoujing.Preparation of Aluminum Alloy Impeller by Semi-Solid Precision Forging[J].Special Casting & Nonferrous Alloys,2012,32(5):426-429. |
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| Authors: | Wang Weiwei Han Fei Song Liang Luo Shoujing |
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| Affiliation: | (School of Materials Science and Engineering,Harbin Institute of Technology Weihai) |
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| Abstract: | Manufacturing of 7A09 aluminum alloy impeller by semi-solid precision forging was performed.A new method of direct-heating and isothermal treatment to prepare billets with semi-solid microstructure was presented,and key problems for the large dimension billet preparation were analyzed.FEM was adopted to analyze the semi-solid forging process and the influence of process parameters.The practical forging was conducted based on the simulated results.Heat treatment of the semi-solid forgings was investigated,and desirable mechanical properties were obtained as follows:tensile strength≥500 MPa,elongation≥9%,hardness(HB)≥160. |
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| Keywords: | Aluminum Alloy Semi-Solid Forging Impeller |
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