Experimental Research on High Speed Grinding of Silicon Nitride Ceramic Spindle
| Autor: | Jian Sun, Ke Zhang, Yu Hou Wu, He Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy 02 engineering and technology Surface finish Grinding wheel 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Grinding chemistry.chemical_compound Silicon nitride chemistry Mechanics of Materials High-speed grinding visual_art 0103 physical sciences Cylindrical grinder visual_art.visual_art_medium Surface roughness General Materials Science Ceramic 0210 nano-technology |
| Zdroj: | Materials Science Forum. 874:253-258 |
| ISSN: | 1662-9752 |
| Popis: | Grinding is a main method of silicon nitride ceramic in finish machining stage. The technical parameters had an important influence on the surface quality of silicon nitride ceramic. The silicon nitride ceramic spindle was ground by the high-speed cylindrical grinder MGKS1432-H. The relations between different speed parameters and surface roughness were researched. The cylindrical and internal high speed grinding experiments of silicon nitride ceramics spindle were carried out. The S-4800 scanning electron microscope was used to explore the roughness change rule of the grinded surface under the condition of only changed grinding wheel’s velocity. In the process of cylindrical and internal grinding on silicon nitride ceramic spindle, the roughness tended to decrease with the linear velocity increasing, and increased with the radial feed speed increasing and decreased with the wheel shaft’s oscillation speed increasing. The result indicated that the linear velocity of grinding wheel influenced the sample’s roughness most. The effect of radial feed speed on the roughness is next only to the effect from linear velocity. The effect of shaft’s oscillation speed on the roughness is the lowest of the three factors. In the process of internal grinding, with the linear velocity increasing, the ceramic material transformed from brittle rupture to plastic deformation and the roughness appeared one peak. These results were very helpful to optimize the grinding parameters and improve grinding efficiency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|