| DLC薄膜摩擦行为对微拉深工艺的影响 |
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| 引用本文： | 王春举,王传杰,郭斌,单德彬.DLC薄膜摩擦行为对微拉深工艺的影响[J].中国有色金属学会会刊,2014,24(9):2877-2882. |
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| 作者姓名： | 王春举 王传杰 郭斌 单德彬 |
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| 作者单位： | 哈尔滨工业大学金属精密热加工国家级重点实验室;哈尔滨工业大学材料科学与工程学院;哈尔滨工业大学微系统与微结构制造教育部重点实验室; |
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| 基金项目： | Projects(51375113,50805035)supported by the National Natural Science Foundation of China |
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| 摘 要： | 为了降低微成形中的摩擦尺寸效应,采用基于离子注入、沉积法和磁控溅射技术在模具表面分别镀上3种涂层（DLC、TiN和MoS2）。考虑试样在接触面的塑性变形,分析了表面涂层的摩擦行为。分析表明：当使用DLC涂层时,摩擦因数较低,并且在大应力应变条件下具有较高的抗磨损性能。当进行100次摩擦实验后,DLC薄膜出现石墨化。从摩擦功影响而导致能量降低的角度分析了石墨化机理。通过减小壁厚等研究了DLC薄膜的性能对微拉深件质量的影响。结果表明,DLC薄膜有助于改善微型构件的质量。
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| 关 键 词： | 微拉深 DLC薄膜 摩擦行为 微型杯件 石墨化 |
| 收稿时间： | 8 July 2013 |
Effects of tribological behavior of DLC film on micro-deep drawing processes |
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| Chun-ju WANG,Chuan-jie WANG,Bin GUO,De-bin SHAN.Effects of tribological behavior of DLC film on micro-deep drawing processes[J].Transactions of Nonferrous Metals Society of China,2014,24(9):2877-2882. |
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| Authors: | Chun-ju WANG Chuan-jie WANG Bin GUO De-bin SHAN |
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| Affiliation: | Chun-ju WANG, Chuan-jie WANG, Bin GUO, De-bin SHAN( 1. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China; 2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 3. Key Laboratory of Micro-systems and Micro-structures Manufacturing (HIT), Ministry of Education, Harbin Institute of Technology, Harbin 150001, China) |
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| Abstract: | To decrease the size effects of friction in microforming, three kinds of surface coatings, such as diamond-like carbon（DLC）, TiN and MoS2, were deposited on surfaces of dies with plasma based ion implantation and deposition（PBII D） method and magnetron sputtering technique, respectively. The tribological behavior of surface coatings was analyzed considering plastic deformation of specimen at contact interface. The analyses indicate that there is a lower coefficient of friction（COF） and a high wear resistance under the condition of large strain/stress when using the DLC film. The graphitization of DLC film occurs after 100 times of tests. The mechanism of graphitization was analyzed considering energy induced by friction work. The effects of DLC film properties on qualities of micro-deep drawn parts were investigated by analyzing the reduction of wall thickness, etc. The results indicate that DLC film is very helpful for improving the qualities of the micro-parts. |
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| Keywords: | micro-deep drawing diamond-like carbon film tribological behavior micro-cups graphitization |
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