以超音波加工對抗彈陶瓷材料切削條件孔品質之研究

Research on the Influence of the Cutting Conditions on the Holes Quality of Armor Ceramic Tiles in Rotary Ultrasonic Machining

10.6989/JN.201112.0031

王士榮；廖文賢

超音波加工法 ； 抗彈陶瓷片 ； 移除率 ； Rotary ultrasonic machining (RUM) ； Armor ceramic tiles (ACT) ； Material removal rate (MRR)

南亞學報

31期（2011 / 12 / 01）

31 - 48

繁體中文

以超音波加工抗彈陶瓷片材料是具經濟且有效的方法，主要是運用超音波振動並組合鑽石磨粒以移除材料之混合加工方式，加工時所產生的刀口邊緣之碎屑，在超音波加工陶瓷材料時都可觀察得到。然而一些加工因子會影響到加工表面之品質如進給率、主軸速度、機台功率等。本研究中是以五個變數及兩階的部份因子作為實驗之設計，其主要目的就在於顯現出加工參數間相互作用的主要效應，例如移除率（MRR）、孔入口段表面粗糙度、孔偏差、出口切屑型態等。

Rotary ultrasonic machining (RUM) is regarded as one of the cost-effective machining methods for Armor ceramic tiles material. It is a hybrid machining process that combines the material removal mechanisms of diamond grinding and ultrasonic machining (USM). Chippings at the holes exit are also observed under a microscope. A number of factors influence the quality of the cut surface: For spindle speed, feed-rate, and ultrasonic power. Furthermore, the paper presents the results of a designed experimental investigation into RUM of ACT. A three-variable two-level full factorial design is employed to reveal main effects as well as interaction effects of three RUM process parameters (spindle speed, feed-rate, and ultrasonic power). The process outputs studied include holes export section surface roughness, material removal rate (MRR), and holes quality (in terms of Entrance section chipping dimensions).