| URN | etd-0725122-081837 | Statistics | This thesis had been viewed 55 times. Download 0 times. |
| Author | ZHENG-WEI ZHONG | ||
| Author's Email Address | h092535080119960801@gmail.com | ||
| Department | Institute Of Mechanical Engineering | ||
| Year | 2021 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 75 |
| Title | Study on Surface Roughness of Mechanical Grinding of Titanium Alloys | ||
| Keyword | |||
| Abstract | This paper mainly discusses the precision single plane mechanical polishing processing parameters for the surface roughness of titanium six aluminum four vanadium processing. During the experiment, different abrasives and concentrations were used as polishing liquids, as well as the settings of different grinding disc speed and time parameters to grind and polish the surface of Ti6Al4V. The surface roughness and surface morphology were observed. In the experiment, titanium hex aluminum tetra vanadium was placed between grinding discs for grinding, and silicon carbide and alumina powder polishing solutions with particle sizes of 0.5 £gm , 1 £gm and 2 £gm were used for surface polishing. In the polishing process, the concentration, rotation speed, particle size and polishing time were changed, and the polishing effect on the surface of titanium six aluminum four vanadium under different parameters. The experimental analysis results show that the original roughness of Ti6Al4V can be reduced from 2.33 £gm to 0.04 £gm within 30 min by using silicon carbide with a particle size of 1 £gm, a polishing concentration of 30 %, and a grinding wheel speed of 90 rpm. 98.32%. However, the alumina powder can only reduce the original roughness of Ti6Al4V from 2.33 £gm to 0.15 £gm under the same parameters mentioned above, and the removal rate reaches 93.58 %. Finally, the surface of the test piece was observed by a 3D surface roughness profiler. It can be observed that the surface roughness traces of the test piece can be effectively removed after polishing with silicon carbide, and the difference in the height of the workpiece surface is significantly reduced, while the alumina polishing can only be performed under the same parameters. Only part of the surface can be removed, and experiments have confirmed that using silicon carbide as an abrasive is better than alumina powder as an abrasive. Keywords: Ti-6Al-4V, Grind, Polishing, Surface roughness, Silicon carbide polishing liquid, Alumina polishing liquid. |
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| Advisor Committee | |||
| Files | indicate in-campus access immediately and off-campus access at 4 years | ||
| Date of Defense | 2022-07-04 | Date of Submission | 2022-07-25 |