| HAN Jiaru,JIANG Miaojin,CHEN Yi,WEI Yaxiao,QIAO Dongsheng,XU Ziyi,GONG Aijun.Research Progress in Ultra-precision Polishing Techniquesof Nickel and Its Alloys[J],54(1):97-109 |
| Research Progress in Ultra-precision Polishing Techniquesof Nickel and Its Alloys |
| Received:March 26, 2024 Revised:June 04, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.01.009 |
| KeyWord:nickel alloy polishing material removal mechanism polishing efficiency surface quality ultra-precision |
| Author | Institution |
| HAN Jiaru |
School of Chemistry and Biological Engineering, Beijing , china ;Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china |
| JIANG Miaojin |
Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china;School of Materials Science and Engineering, Universityof Science and Technology Beijing, Beijing , china |
| CHEN Yi |
School of Chemistry and Biological Engineering, Beijing , china ;Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china |
| WEI Yaxiao |
School of Chemistry and Biological Engineering, Beijing , china ;Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china |
| QIAO Dongsheng |
Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china;School of Materials Science and Engineering, Universityof Science and Technology Beijing, Beijing , china |
| XU Ziyi |
School of Chemistry and Biological Engineering, Beijing , china ;Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china |
| GONG Aijun |
School of Chemistry and Biological Engineering, Beijing , china ;Beijing Key Laboratory for Science and Application ofFunctional Molecular and Crystalline Materials, Beijing , china |
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| Abstract: |
| Nickel and its alloys are indispensable basic materials in the high-tech field, and there is an increasing demand for the surface quality of nickel and its alloys. However, due to their high toughness, high hardness and low thermal conductivity, the machinability of nickel and its alloys is poor. The traditional surface processing methods are prone to cause work hardening and surface scratches, as well as low processing efficiency. Therefore, the ultra-precision polishing of nickel and its alloys has become an extremely significant research direction. Focusing on high efficiency, high surface quality and low surface damage polishing, this paper reviews the principles, characteristics and research status of the electrochemical polishing (ECP), chemical mechanical polishing (CMP), magneto-rheological finishing (MRF) and laser polishing (LP) for nickel and its alloys. The different ultra-precision polishing techniques are compared in terms of surface roughness, surface damage, processing efficiency, shape limitation, environmental pollution, and processing cost. Furthermore, this paper summarizes the advantages and disadvantages of each polishing technique. ECP and CMP are the two most widely used polishing methods in processing of nickel and its alloys. ECP has a series of processing characteristics such as no restrictions on workpiece geometry and size, no residual stress, no surface damage, high processing efficiency and high surface quality. CMP can achieve global planarization of materials through the dual coupling effect of chemical corrosion and mechanical removal, ensuring high material removal rate while achieving low surface roughness. However, the above two methods involve chemical reagents in their polishing slurries that can react with the workpiece, resulting in surface contamination on nickel and its alloys. Additionally, these techniques typically use strong acid, strong alkali and highly corrosive chemicals which can cause certain harm to the experimental operators and the environment. As a flexible polishing method, MRF can be used for ultra-precision polishing of complex surfaces. It has higher efficiency, high surface quality and low surface damage. However, the preparation process of magnetorheological fluid is complicated, resulting in high cost of this technique and limited applications in industrial production. LP is a non-contact polishing method that applies no pressure to the workpiece, which makes it suitable for processing complex geometric parts and free of surface damage. It has the advantages of high precision and efficiency in polishing, without material waste and environmental pollution. However, as a new technology, LP is also characterized by drawbacks such as high initial cost of laser polishing system, cumbersome operation process and high power required when metals are characterized by high reflectivity. What's more, it is pointed out that the properties of nickel and its different alloys are quite distinct, so it is necessary to select appropriate polishing methods according to different properties of alloys and processing requirements in this paper. Finally, based on existing problems and current techniques in ultra-precision polishing of nickel and its alloys, the development trend of ultra-precision polishing techniques are outlined from four aspects:improving the theoretical framework and system, revealing the mechanism of ultra-precision polishing techniques; exploring the collaborative processing of various energy fields and the coupling use of multiple polishing techniques; taking into account the complex structures of nickel and its alloys in practical applications; achieving the low-cost and environmentally friendly polishing process. |
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