| LU Shou-xiang,GUO Sai,ZHANG Jian-qiu,JIANG Qing-hong,ZHOU Cong,ZHANG Bi.Grindability of High Performance Difficult-to-machine Materials[J],51(3):12-42 |
| Grindability of High Performance Difficult-to-machine Materials |
| Received:November 15, 2021 Revised:January 14, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2022.03.002 |
| KeyWord:titanium alloy superalloy hard brittle materials composites grindability surface integrity grinding wheel wear |
| Author | Institution |
| LU Shou-xiang |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
| GUO Sai |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
| ZHANG Jian-qiu |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
| JIANG Qing-hong |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
| ZHOU Cong |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
| ZHANG Bi |
Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics, Shenzhen , China;Southern University of Science and Technology, Shenzhen , China |
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| Abstract: |
| High performance difficult-to-machine (DTM) materials are increasingly applied in advanced applications. The precision and accuracy requirements for key parts enhance unceasingly, but the grindability of materials with high performance is inferior, which proposes an enormous challenge to the grinding process. To improve the surface integrity and reduce grinding wheel wear, scholars at home and abroad have carried out extensive research. This study comprehensively reviews the recent research progress on grindability of DTM materials (e.g., metallic materials, ceramic materials, and composites) from four aspects, including surface integrity, grinding wheel blockage and wear, grinding chatter, and advanced technologies for improving grindability. The study first discusses the characteristics and common problems of grindability of DTM materials and summarizes the underlying formation mechanism of machining damage. It is concluded that the main strategy to improve the grindability of a material is to reduce grinding force and temperature. Furthermore, the study analyzes the sources of grinding force and temperature, and their influences on the surface integrity and grinding wheel wear. On these bases, the study puts forward a process strategy to reduce grinding force and temperature inspired by the ideas of “reducing the inflow” and “promoting the outflow”. Finally, high-quality and efficient machining methods for DTM materials have prospected. The study points out that high quality and efficient machining of DTM materials rely on the continuous development of various advanced techniques, including high-performance grinding wheel and its dressing techniques, high-efficiency cooling and lubrication techniques, multi-field hybrid grinding techniques and ultra-high-speed grinding techniques. |
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