Cutting performance and wear mechanism of Sialon ceramic tools in high speed face milling GH4099 |
| |
| Affiliation: | 1. School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China;2. Tianjin Key Laboratory of Thin Film and Opitcs, Tianjin Jinhang Institute of Technical Physics, Tianjin 300192, China;3. State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;1. Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;2. College of Aeronautical Engineering, National University of Science & Technology (NUST), Pakistan;3. Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;4. Materials and Surface Science Institute, University of Limerick, Limerick, Ireland;1. Department of Metallurgical and Materials Engineering, Bilecik S.E. University, Bilecik, Turkey;2. Department of Materials Science and Engineering, Anadolu University, Eskisehir, Turkey;1. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, PR China;2. Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, Xuzhou 221116, PR China;3. School of Mechanical Engineering, Shandong University, Jinan 250061, PR China;4. Department of Industrial & Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, USA |
| |
| Abstract: | This work aims to reveal the cutting performance and wear mechanisms of Sialon ceramic tools for the high-speed face-milling of GH4099, with the goal of improving this process as well as designing more advanced ceramic cutting tools in the future. At the outset of this study, several single-factor experiments were designed with speed as a variable to gather various data on such tools. Failure patterns and tool life curves were first obtained through cutting tests. Afterwards, the tools were split at their place of wear (middle of notch and 1/2 depth of cut) to prepare for further analysis. Wear morphology and element composition distribution in the depth direction of the corresponding interface were then analyzed using a field emission scanning electron microscope (FE-SEM) and energy dispersive spectrometer (EDS) to explore potential diffusion and/or chemical wear. Finally, studies were conducted into the tools’ chemical wear under specific cutting conditions, finishing with a theoretical verification based on the thermodynamic principle of chemical reactions. This research discovered that notch wear was the main failure pattern for the high-speed face-milling of GH4099 under the suitable cutting conditions. Overall, the optimal cutting speed was 1000 m/min, with a tool life of about 3 min. Compared with cemented carbide tools, the machining efficiency for Sialon ceramic tools increased by over a factor of 16. The wear mechanisms for such tools demonstrated a mixture effect of abrasive, adhesive, diffusive and chemical wear. Diffusive wear mainly occurred in their flank faces, but did not constitute the main mechanism of notch wear; chemical wear proved to be a key reason for notch wear at higher temperatures. Based on the aforementioned research, this paper concludes with a proposed comprehensive model for notch wear. |
| |
| Keywords: | Sialon ceramic tool Cutting performance Wear mechanism Notch wear |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
