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題名 | Face Milling of Glass Fiber Reinforced Plastics (GFRP) with Chamfered Main Cutting Edge Carbide Tools=負稜主刃銑刀加工玻璃纖維複材之研究 |
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作者 | 張充鑫; 蔡國忠; Chang, Chung-shin; Tsai, Gwo-chung; |
期刊 | 宜蘭大學工程學刊 |
出版日期 | 20050200 |
卷期 | 1 2005.02[民94.02] |
頁次 | 頁37-62 |
分類號 | 446.893 |
語文 | eng |
關鍵詞 | 銀白色切屑; 玻璃纖維; 複合材料; 負稜主刃面銑刀; Face milling; Glass fiber reinforced plastics; GFRP; Chamfered main cutting edge; Build-up edge; |
中文摘要 | 本研究是一種選用P型及K型材質的碳化物刀片,磨成負稜主刃銑刀後,針對玻璃纖維複合材料作切削研究。研究當中除了量測三軸切削力與預測值比較外,並觀查切削的生成方式,刀片磨耗情形及工件表面光度等,結果顯示預測值與實驗值很接近。另外本研究在開始前,即先設計並製造出九種不同形狀的刀把,然後將刀片鎖在刀把上以磨成不同幾何形狀的刀片。此刀片包含負稜寬度,刀鼻半徑,導引角(lead angle),第一與第二徑向角(radial angle)及軸向角等(axial angle),以作各種不同的實驗。實驗結果顯示,當導引角(C□)一定,具有負稜的刀具切削力較低;且當C□為20°,第一及第二徑向角,α□(α□)分別為-10°(10°)時,為一理想之刀具角度。另外K型負稜主刃面銑刀比P型面銑刀有較佳的切削效果。 |
英文摘要 | Due to the special properties of composite materials, a reasonable analysis of the material response to milling with chamfered main cutting edge tool lacks progress yet. Knowledge acquired from metal cutting can be used only with care. In this study, the machinability of high-strength glass-fiber-reinforced plastics (GFRP) materials in face milling with chamfered main cutting edge of P and K type carbide tools have been investigated experimentally. Chip formation mechanisms and tool wear have been observed and the surface roughness has been measured with respect to tip's geometries and nose radii. A new force model for a single-point face milling cutters with a chamfered main cutting edge has been developed. The theoretical values of cutting forces were calculated and compared with the experimental results; the forces predicted by this model were consistent with the experimental values. A special tool holder and its geometry was designed and manufactured first, then these holders with the mounting tip's were grinded to various tool geometries, including the width of chamfered main cutting edge, the nose radii, the lead angel, first and second radial angle and axial angel… etc. In this paper, the sharp of chamfered main cutting edge tool induce decrease of the cutting force and the smallest of the cutting force values in the case of c□=20°, α□(α□)=-20°(20°). Comparing of the different P and K type of tools using in milling GFRP materials, K type of chamfered main cutting edge tool is better than P type of chamfered main cutting edge tool. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。