- 學位論文
端銑刀之研磨精度與碳化鎢鈷含量對塑膠材料切削性能分析
The Analysis of Cutting Performance in the Plastic Materials for the Grinding Precision and the Cobalt Content of Tungsten Carbide of End Mills
摘要
由於塑膠材料本身具有良好韌性，所以在切削塑膠材料時，過去都是針對刀具幾何角度或切削參數進行調整，藉此達到提升刀具壽命，然而隨著科技的進步，在塑膠材料方面添加複合材料來增加塑膠材料本身的強度，使切削塑膠材料時更為難切削，然而目前在切削塑膠方面鮮少針對刀具研磨精度與碳化鎢鈷含量進行研究探討，故本研究以端銑刀之研磨精度與碳化鎢鈷含量對塑膠材料切削性能分析。 本研究以影響刀具刃口研磨精度製程參數有分別為切削面砂輪粒度、切削面進給速度、切削面線速度、離隙面砂輪粒度、離隙面進給速度以及離隙面線速度，利用田口實驗計畫法，經分析L36(22×34)直交表找到最佳、適中及最差三種等級的研磨精度，再依照每種研磨精度對不同鈷含量的碳化鎢圓棒研磨，一共可獲得九組不同的刀具特性來進行一系列的切削性能分析。 經實驗分析結果顯示，切削藍色PC材料(EXL14414)中以刀具成份鈷含量8%其刃口研磨精度1.095μm具有較佳的刀具壽命品質；切削白色PC材料(EXRL2031)中以刀具成份鈷含量8%其刃口研磨精度1.095μm具有較佳的刀具壽命品質；切削黑色PC glass材料(Kalix 9950)中以刀具成份鈷含量9%其刃口研磨精度1.095μm具有較佳的刀具壽命品質。
並列摘要
Since the plastic material itself has good toughness, so when cutting plastic materials, in the past are adjusted for tool geometry or machining parameters, thereby reach to enhance tool life, but with the advances in technology, in addition to the plastic composite material increase their own strength plastic material, the plastic material of the cutting cutting more difficult, but now in terms of cutting the plastic rarely for precision grinding tools and tungsten carbide cobalt content to explore research, so this study end precision grinding and milling of tungsten carbide cutting analysis of cobalt content on the plastic material. In this study, the impact tool edge precision grinding process parameters were cutting surface grit size, cutting surface feed rate, cutting surface speed, relief surface grit size, relief surface feed rate and the relief surface speed, use Taguchi experiment Planning Act, the analysis of L36 (22 × 34) orthogonal table to find the best, the worst and moderate three levels of precision grinding, precision grinding and then in accordance with each grinding tungsten carbide rods with different cobalt content, total available nine different tool characteristics to a series of cutting analysis. The experimental analysis showed that cutting blue PC material (EXL14414) to the tool component cobalt content of 8% of its edge polishing accuracy 1.095μm has better tool life quality; cutting white material PC (EXRL2031) to the tool component cobalt content 8% of its edge polishing accuracy 1.095μm has better tool life quality; cutting black PC glass material (Kalix 9950) to the tool component cobalt content of 9% of its accuracy 1.095μm edge grinding tool life with better quality.