This paper studies the effects of cryogenic liquid nitrogen compared with conventional wet coolant in drilling of CFRP/Ti using diamond-like carbon coated solid carbide tools. The experimental investigation was carried out taking into account the influence of main process parameters and adopting different strategies in the two different materials. The influence of the two different cooling conditions on tool wear was investigated through the comparison of the thrust force and torque; the effect on the hole quality was analysed through the measurements of burr height and diameters. The use of a cryogenic coolant results in both lower thrust force and torque but in a slightly poorer quality of the holes.
Sanjay Rawat, Helmi Attia, Wear mechanisms and tool life management of WC-Co drills during dry high speed drilling of woven carbon fibre composites, Wear 2009; 267: 1022-1030 https://doi.org/10.1016/j.wear.2009.01.031
Marta Fernandes and Chris Cook, Drilling of carbon composites using one shot drill bit. Part I: Five stage representation of drilling and factors affecting maximum force and torque, International Journal of Machine Tools & Manufacture 2006; 46: 70-75 https://doi.org/10.1016/j.ijmachtools.2005.03.015
Sushinder K, Shivaram PR, NivedhKannaa SB, Nisarg Gupta and Vijay Sekar KS, Investigation of Thrust forces, Torque and Chip microstructure during Drilling of Ti-6Al-4V Titanium alloy, Applied Mechanics and Materials 2015; 787: 431-436 https://doi.org/10.4028/www.scientific.net/AMM.787.431
Islam Shyha, Sein Leung Soo, David K. Aspinwall, Sam Bradley, Stuart Dawson, Cornelius J. Pretorius, Drilling of Titanium/CFRP/Aluminium Stacks, Key Engineering Materials 2010; 447-448: 624-633 https://doi.org/10.4028/www.scientific.net/KEM.447-448.624 Figure 5: Delta torque as function of the feed rate for revolution. Figure 6: Exit burr height as function of the feed rate for revolution. Drilling of CFRP/Ti Stacks in Wet and Cryogenic Condition Journal of Modern Mechanical Engineering and Technology, 2019, Vol. 6 39
IS. Shyha, SL. Soo, DK. Aspinwall, S. Bradley, R. Perry, P. Harden, S. Dawson, Hole quality assessment following drilling of metallic-composite stacks, International Journal of Machine Tools & Manufacture, 2011; 51: 569-578 https://doi.org/10.1016/j.ijmachtools.2011.04.007
Kyung-Hee Park, Aoron Beal, Dave (Dae-Wook) Kim, Patrick Kwon, Jell Lantrip, Tool wear in drilling composite /titanium stacks using carbide and polycrystalline diamond tools, Wear 2011; 271: 2826-2835 https://doi.org/10.1016/j.wear.2011.05.038
Xin Wang, Parick Y. Kwon, Caleb Sturtevant, Dave (DaeWook) Kim, Jeff Lantrip, Comparative tool wear study based on drilling experiments on CFRp/Ti stack and its individual layers, Wear 2014; 317: 265-276 https://doi.org/10.1016/j.wear.2014.05.007
Oliver Pecat, EkkardBrinksmeier, Low Damage Drilling of CFRP/Titanium Compound Materials for Fastening, ScienceDirect Procedia CIRP 2014; 13: 1-7 https://doi.org/10.1016/j.procir.2014.04.001
M. Mori, M. Fujishima, Y. Inamasu, Y. Oda, A study on energy efficiency improvement for machine tools, CIRP Annals - Manufacturing Technology 2011; 60: 145-148 https://doi.org/10.1016/j.cirp.2011.03.099
D. Kim, A. Beal, P. Kwon, Effect of tool wear on hole quality in drilling of carbon fiber reinforced plastic-titanium alloy stacks using tungsten carbide and polycrystalline diamond tools, Journal of manufacturing science and engineering 2016; 138: 031006-1 - 031006-1-11 https://doi.org/10.1115/MSEC2015-9364
YakupYildiz, MuammerNalbant, A review of cryogenic cooling in machining processes, International Journal of Machine Tools & Manufacture 2008; 48: 947-964 https://doi.org/10.1016/j.ijmachtools.2008.01.008
T. Xia & Y. Kaynak& C. Arvin & IS. Jawahir, Cryogenic cooling-induced process performance and surface integrity in drilling CFRP composite material, International Journal of Advanced Manufacturing Technology 2016; 82: 605-616 https://doi.org/10.1007/s00170-015-7284-y
Martin Dix, Rafael Wertheim, Gerhard Schmidt, Carsten Hochmuth, Modeling of drilling assisted by cryogenic cooling for higher efficiency, CIRP Annals - Manufacturing Technology 2014; 63: 73-76 https://doi.org/10.1016/j.cirp.2014.03.080
B. Dilip Jerold, M. Pradeep Kumar, The influence of cryogenic coolants in machining Ti6Al4V, Journal of manufacturing science and engineering 135, pp. 031005-1 - 031005-8 https://doi.org/10.1115/1.4024058
L. Shakeel Ahmed, M. Pradeep Kumar, Cryogenic drilling of Ti-6Al-4V alloy under liquid nitrogen cooling, Materials and manufacturing processes 2015; 31(7): 951-959 https://doi.org/10.1080/10426914.2015.1048475
K. Giasin, S. Ayvar-Soberanis, A. Hodzic, Evaluation of cryogenic cooling and minimum quantity lubrication effects on machining GLARE laminates using design of experiments, Journal of Cleaner Production 2016; 135: 533- 548. https://doi.org/10.1016/j.jclepro.2016.06.098
Iwona Wstawska, Krzysztof Ślimak, The influence of cooling techniques on cutting forces and surface roughness during cryogenic machining of titanium alloys, Archives of Mechanical Technology and Materials 2016; 36: 12-17. https://doi.org/10.1515/amtm-2016-0003
L. Shakeel Ahmed, N. Govindaraju, and M. Pradeep Kumar, Experimental Investigations on Cryogenic Cooling in the Drilling of Titanium Alloy, Materials and Manufacturing Processes, 2016; 31: 603-607. https://doi.org/10.1080/10426914.2015.1019127
Pradeep Kumar M, Shakeel Ahmed L, Drilling of AISI 304 Stainless Steel under Liquid Nitrogen Cooling: A Comparison with Flood Cooling, Materials Today: Proceedings 2017; 4:1518-1524, 5th International Conference of Materials Processing and Characterization (ICMPC 2016) https://doi.org/10.1016/j.matpr.2017.01.174