碳纖維複合材料 (CFRP) 與鋁合金 (Al alloy) 依照其不同的疊層設計，可以展現出高強度比 (2.5-4.5GPa) 與高剛性比 (400GPa) 的優點性能。而與傳統金屬結構材料比起來，加入碳纖維複合材料不僅強度與剛性高於數倍，同時也符合輕量、節能的優勢。目前結構設計使用金屬碳纖維的應用上多如航太、汽車等工業，而未來這些應用優勢將成為取代傳統金屬材料的方案之一。目前金屬與碳纖維複合材料的加工多為獨立分層加工，之後再將其組合成疊層材料；此計畫使用方法為一次性鑽削 (single-shot drilling)，即金屬與碳纖維複合材料先進行鎖固，再以鑽削製程進行一次性鑽削。此工法的設計在於刀具須配合多變的切削速度與進給並通過不同的疊層，並且最後保持孔的品質完整。此外，使用CVD鍍鑽石刀具搭配不同的切削速度、進給速率、振動頻率及振幅，進行實驗，進而尋得最佳參數組合與優化的結果，並在最後透過變異數分析來分析可變因子的顯著性

Carbon fiber reinforced polymer (CFRP) and aluminum alloy in stack order can exhibit high specific strength and high specific modulus when compared to the traditional metal construction materials. Currently CFRP/Al stack materials used in the structural design are drilled in the separated metallic layer and CFRP layer in individual process. Afterward, assembling of the separated layers to one piece for a reaming and fine finishing. In this work, carbon fiber-reinforced polymer laminate and aluminum plate are bonded into one piece, following by the design single shot drilling for hole making. The employed CVD diamond coated drills coupling with variable cutting speed and feed rate exhibit outstanding results on the material removal, tool wear, hole quality and surface integrity. In addition, with the assistance of the low frequency vibration coupling with selected amplitude, contradict objective such as surface roughness and cutting force are simultaneously reduced

[1] A. Velayudham, R. Krishnamurthy and T. Soundarapandian, Evaluation of drilling characteristics of high volume fraction fibre glass reinforced polymeric composite. International Journal of Machine Tools and Manufacture, 2005. 45(4-5): p. 399-406.
[2] V. Chandrasekharan, S.G. Kapoor and R.E. DeVor, A Mechanistic Approach to Predicting the Cutting Forces in Drilling: With Application to Fiber-Reinforced Composite Materials. Journal of Engineering for Industry, 1995. 117(4): p. 559-570.
[3] R. Komanduri, Machining of fibre-reinforced composites. Machining Science and Technology: An International Journal, 1997. 1(1):p. 113-152
[4] J. Ahmad, Machining of polymer composites. Springer, 2009.
[5] R.R. Boyer, An overview on the use of titanium in the aerospace industry. Materials Science and Engineering: A, 1996. 213(1): p. 103-114.
[6] Designation Systems for Wrought Aluminium, Wrought Aluminium Alloys, Casting Alloys and Other Metallurgical Aspects
[7] Aluminum alloy development for the airbus a380 — part 2, advanced materials & processes/July 2007
[8] M. Ramulu, T. Branson and D. Kim, A study on the drilling of composite and titanium stacks. Composite Structures, 2001. 54(1): p. 67-77.
[9] I.S. Shyha, S.L. Soo, D.K. Aspinwall, S. Bradley, R. Perry, P. Harden and S. Dawson, Hole quality assessment following drilling of metallic-composite stacks. International Journal of Machine Tools and Manufacture, 2011. 51(7–8): p. 569-578.
[10] W. König and P. Graß, Quality Definition and Assessment in Drilling of Fibre Reinforced Thermosets. CIRP Annals - Manufacturing Technology, 1989. 38(1): p. 119-124.
[11] R. Zitoune, V. Krishnaraj and F. Collombet, Study of drilling of composite material and aluminium stack. Composite Structures, 2010. 92(5): p. 1246-1255.
[12] A.M. Abrão, P.E. Faria, J.C.C. Rubio, P. Reis and J.P. Davim, Drilling of fiber reinforced plastics: A review. Journal of Materials Processing Technology, 2007. 186(1–3): p. 1-7.
[13] W.C. Chen, Some experimental investigations in the drilling of carbon fiber-reinforced plastic (CFRP) composite laminates. International Journal of Machine Tools and Manufacture, 1997. 37(8): p. 1097-1108.
[14] D. Liu, Y. Tang and W.L. Cong, A review of mechanical drilling for composite laminates. Composite Structures, 2012. 94(4): p. 1265-1279.
[15] K.H. Park, A. Beal, D. Kim, P. Kwon and J. Lantrip, Tool wear in drilling of composite/titanium stacks using carbide and polycrystalline diamond tools. Wear, 2011. 271(11–12): p. 2826-2835.
[16] S.S.F. Chang and G.M. Bone, Burr size reduction in drilling by ultrasonic assistance. Robotics and Computer-Integrated Manufacturing, 2005. 21(4–5): p. 442-450.
[17] D.E. Brehl and T.A. Dow, Review of vibration-assisted machining. Precision Engineering, 2008. 32(3): p. 153-172.
[18] X. Wang, L.J Wang and J.P Tao, Investigation on thrust in vibration drilling of fiber-reinforced plastics. Journal of Materials Processing Technology, 2004. 148(2): p. 239-244.
[19] S. Arula, L. Vijayaraghavan, S.K. Malhotra and R. Krishnamurthy, The effect of vibratory drilling on hole quality in polymeric composites. International Journal of Machine Tools and Manufacture, 2006. 46(3–4): p. 252-259.
[20] K. Adachi, N. Arai, F. Kuratani, K. Okita and S. Wakisaka, A Study on Burr in Low Frequency Vibratory Drilling : Case of Drilling for Aluminum. Journal of the Japan Society of Precision Engineering, 1986. 52(7): p. 1205-1210.
[21] G. Stuart, Taguchi methods : a hands-on approach to quality engineering. Addison-Wesley, 1993.
[22] G. Taguchi and T. Yokoyama, Taguchi methods : design of experiments. Japanese Standards Association, 1993.
[23] T.C. Nguyen, S. Miska, A. Saasen and J. Maxey, Using Taguchi and ANOVA methods to study the combined effects of drilling parameters on dynamic barite sag. Journal of Petroleum Science and Engineering, 2014. 121: p. 126-133.
[24] R.K. Roy, A Primer on the Taguchi Method. Society of Manufacturing Engineers, 1990.