摘 要
本研究主要是應用於複雜表面的螺旋研拋技術，其加工機制藉著高速旋轉螺桿傳遞磨料，對被加工件表面產生微細的研拋去除作用，而獲得精細的加工表面，且能達到去除微細毛邊效果的一種精密加工方法。本研究亦可擴展應用到各式精密滾珠導螺桿的超精密拋光，其加工精度與加工時間較一般傳統方法更為優異。本實驗首先設計製作一具有螺旋轉動，可快速傳送磨料的精密拋光裝置，選配精微磨料螺旋研拋重要的加工參數，探討一新型螺旋研拋法改善複雜表面精修之材料去除率及表面粗糙度的效果；實驗的加工參數包括磨料粒徑、濃度、加工間隙、轉速及加工時間，以獲得最大材料去除率與最佳表面粗糙度的加工條件組合。
關鍵詞：螺旋研拋、滾珠導螺桿、材料去除率、表面粗糙度
Abstract
This study is mainly applied on the surface of the spiral polishing technology. It is an ultra-precision machining method that transmits the abrasive through the high-speed rotary screw to have small polishing effect on machine. It can get a fine processing surface and achieve the removal of fine burrs. This study can also be extended to ultra-precision polishing for all kinds of precision ball screw. Its processing precision and processing time are more excellent than the traditional methods. In the experiment, precision polishing equipment with helical rotation and abrasive that can make rapid transmissions was designed and manufactured. Then, the method was applied to select the important machining parameters in the fine abrasive spiral polishing. By a new spiral grinding method Different parameters were employed to observe the material removal rate (MRR) and the surface roughness (SR). The processing parameters in the experiment included the abrasive particle size, abrasive concentration, gap, revolution speed and machining time, and so on. Each parameter was selected to obtain the processing conditions that contributed to a combination between the maximum material removal rate and the lowest surface roughness.
Keywords: Spiral Polishing, Ball Screw, Material Removal Rate (MRR), Surface Roughness (SR)