隨著時代的進步，航空產業發達，航太製造的重要性也隨之提升，鈦合金因具有高的強度、高的耐熱性及良好的耐蝕性等特點，被廣泛運用在航太產業，但也因其特性導致加工不易，進而使加工成本高昂，因此如何透過提升加工技術，降低加工成本，更是現今航太製造產業所追逐的目標。本實驗主要探討使用擺線工法切削Ti-10V-2Fe-3Al之切削性質分析，並使用田口實驗方法設計實驗參數，探討各切削特性影響因子並分析其影響原因，實驗因子分別為切削速度20、40、60m/min，每齒進給量0.045、0.060、0.075mm/tooth，擺線步距0.9、1.2、1.5mm，擺線寬度4、8、12mm。實驗結果顯示，切削速度越快，擺線寬度越小，每齒進給量及擺線步距越大，能夠獲得越佳的材料移除率。刀具磨耗的部分將使用刀復磨耗量與切削體積比值做為結果分析，其結果顯示，切削速度越慢，擺線寬度越大以及適當的每齒進給和擺線步距，能夠獲得較佳之刀具磨耗，並發現切削速度越快，越容易造成缺口磨耗，切削速度越慢，越容易發生黏著磨耗；而從切削模擬發現，擺線寬度越大能有越小的刀具與工件接觸角度。表面粗糙度結果顯示，擺線寬度與擺線步距越大，每齒進給越小及適當的切削速度，能夠獲得較佳之表面粗糙度。最後，比較擺線工法與直線側銑法之切削性能，發現擺線工法比起直線側銑法能擁有更低的刀具磨耗表現。

With the progress of the times, aerospace industry is developed, and the importance of aerospace manufacturing has increased. Titanium alloys are widely used in the aerospace industry due to their high strength, high heat resistance, and good corrosion resistance. It is also difficult to process because of its characteristics, which in turn leads to high processing costs. Therefore, how to improve processing technology and reduce processing costs is the goal pursued by the current aerospace manufacturing industry.This experiment mainly discusses the machinability of the Ti-10V-2Fe-3Al by using trochoidal milling, and uses Taguchi experimental method to design the experimental parameters, and discusses the influence factors of the cutting characteristics and analyzes the influence factors. The experimental factors are cutting speed 20, 40, 60m/min, feed per tooth 0.045, 0.060, 0.075mm/tooth, trochoidal steps 0.9, 1.2, 1.5mm, trochoidal width 4, 8, 12mm. The experimental results show that the higher cutting speed, the smaller trochoidal width, the larger of feed per tooth and trochoidal steps can get the better the material remove rate. Tool wear part will use tool wear and cutting volume ratio as the result of the analysis. The results show that the slower cutting speed, the larger trochoidal width, and the proper per-tooth feed and trochoidal steps can get better result. As Tool wear result picture found that the faster cutting speed more likely to cause notch wear, the slower cutting speed more prone to cause adhesive wear. From the cutting simulation found that the larger trochoidal width can get the smaller contact angle between tool and workpiece.The surface roughness results show that the larger trochoidal width and trochoidal steps, the smaller feed per tooth and proper cutting speed can get the better surface roughness. At last, comparing the cutting performance of trochoidal and side milling methods, it was found that trochoidal method can have lower tool wear than side milling method.

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