- 期刊
- OpenAccess
手動控制與電腦數位化控制切削機切割之表面粗糙度與精確度之比較
Comparison of Surface Roughness and Figure Accuracy between the Manual Control Lathe and Computor Numerical Control Lathe
摘要
目的：傳統的硬式隱形眼鏡製造方法是使用手動控制切削機切割塑膠鈕，然後再經過拋光處理，才能配戴使用，現代的電腦數位化控制切削機在切削以後不需要拋光也可得到光滑的表面。本研究的目的是比較手動控制與電腦數位化控制切削機切割之表面粗糙度與精確度。 方法：利用Polymer Technology公司生產的Boston RXD塑鈕，分別由Manual Lenticular手動控制切削機、Optoform 50電腦數位化控制切削機和Optoform 80電腦數位化控制切削機切割，共有八顆Boston RXD塑膠鈕，分為四組，其中手動控制切削機切割四顆Boston RXD塑膠鈕，兩顆不經過拋光為第一組，另外兩顆卻經過拋光為第二組，而電腦數位化控制切削機切割的塑膠鈕，完全不經過拋光，其中Optoform 50切削的為第三組，Optoform 80切削的為第四組。 結果：經過Talysurf Series 2表面粗糙分析儀檢查，第一組中心地區表面平均粗糙度（Ra值）平均為0.0462μm，第二組為0.0126μm，第三組為0.0101μm，第四組為0.0052μm。第一組實際測量的表面曲率半徑平均為8.59407mm，第二組為8.57883mm，第三組為8.60327mm，第四組為8.60248mm。 結論：以Optoform 80電腦數位化控制切削機的結果最好，Ra值最小，弧度精確度也最高。
關鍵字
無資料並列摘要
The method of making contact lenses included the lathe cut, spin cast and cast molding. However, only lathe cut is available in the manufacturing of hard contact lenses. In the traditional method of making the hard contact lenses, the back curve was cut on the blank by the manual control lathe machine first and the front curve was cut later. Then the lens must be polished with a polisher before the lens was finished. However, the polishing is not necessary in the process of manufacturing hard contact lenses with using the computor numerical control (CNC) lathe. In this study, there were four Boston RXD buttons were cut by the City Crown Manual Lenticular Lathe and polishing were performed on two buttons only. In addition, there were two buttons were cut by the Optoform 50 CNC Lathe and Optoform 80 CNC Lathe respectively but no polishing was performed. The surface roughness (Ra) and figure accuracy were check by the Talysurf Series 2 roughness analyser. With using the Optoform 80 CNC Lathe, the mean Ra was 0.0052μm and the curvature was 8.60248mm which were better than the City Crown Manual Lenticular Lathe and Optoform 50 CNC Lathe.
延伸閱讀
- 洪國榮、蘇文清（1997）。切削條件對電腦數控花鉋機袋形加工面品質之影響。林產工業，16(4)，583-596。https://www.airitilibrary.com/Article/Detail?DocID=02546523-199712-201505130002-201505130002-583-596
- 陳政忠（1995）。應用機器視覺於切削加工件之表面粗糙度分析〔碩士論文，元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611311801
- Yang, L. D., & Chen, J. C. (2003). 統計模型協助模糊網路系統應用于CNC銑床切削零件之表面粗糙度的預測. 工業工程學刊, 20(5), 494-510. https://www.airitilibrary.com/Article/Detail?DocID=10170669-200309-20-5-494-510-a
- Etherton, J. R., Trump, T. R., & Jensen, R. C. (1981). The Determination of Effective Injury Controls for Metalcutting Lathe Operators. Scandinavian Journal of Work, Environment & Health, 7(suppl 4), 115-119. https://www.airitilibrary.com/Article/Detail?DocID=03553140-198112-201011160091-201011160091-115-119
- 陳冠宏（2020）。Surface Roughness Improvement for Reciprocating Grinding〔碩士論文，逢甲大學〕。華藝線上圖書館。https://doi.org/10.6341/fcu.M0722662