| 三维金属微构件的微熔模精密铸造成形 |
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| 引用本文： | 任明星,李邦盛,王振龙.三维金属微构件的微熔模精密铸造成形[J].纳米科技,2011(1):66-69,81. |
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| 作者姓名： | 任明星 李邦盛 王振龙 |
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| 作者单位： | [1]哈尔滨工业大学微纳米技术研究中心,黑龙江哈尔滨150001 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001 [3]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001 |
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| 基金项目： | 国家自然科学基金青年基金项目（51005053）; 黑龙江省自然科学基金重点基金项目（ZJG04-01）; 微系统与微结构制造教育部重点实验室开放基金项目（HIT.KLOF.2009012） |
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| 摘 要： | 利用微铸造工艺低成本制备具有三维复杂结构的微金属构件是微细加工技术的发展方向之一。文章利用超声细化工艺改进了现有的微熔模铸造铸型,获得了具有纳米微结构的低表面粗糙度（Ra-0.22μm）的微熔模型壳,并实际离心浇注成形了直径仅为100μm,长径比达到200的微细圆丝Zn-4Al合金微铸件,微铸件的表面粗糙度仅为Ra-0.51μm,且成形完整。
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| 关 键 词： | 微熔模铸造工艺 微铸件 表面粗糙度 |
Micro-investment Casting Forming of 3D Micro-metal Components |
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| Authors: | REN Ming-xing LI Bang-sheng WANG Zhen-long |
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| Affiliation: | 1.Micro/Nano Technology Research Center,HIT, Harbin 150001, China) (2.School of Materials Science and Engineering,Harbin Institute of Technology, Harbin 150001, China) (3. School of Mechatronics Engineering,Harbin Institute of Technology, Harbin 150001, China) |
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| Abstract: | Fabrication of three dimensional complex micro-metal components with low cost using microcasting technology is development direction of micro-machining technology. In this paper, utilizing the esisting microcasting mold improved by ultrosonic refining process, micro investment shell with nano-micro structure and low roughness （Ra-0.22 μm） were obtained. The Zn-4Al alloy castings of micro round wire with a diameter of 100 μm and aspect ratio of 200 were prepared by the method of centrifugal casting. The micro castings have a comoplete shape, and the surface roughness （Ra） of its is 0.51 μm. |
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| Keywords: | micro investment casting technology microcastings surface roughness |
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