RT Journal Article
T1 Drilling of CFRP-Ti6Al4V stacks using CO2-cryogenic cooling
A1 Rodríguez, A.
A1 Calleja, A.
A1 de Lacalle, L. N.López
A1 Pereira, O.
A1 Rubio-Mateos, A.
A1 Rodríguez, G.
AB In the work here presented, liquefied CO2 is used as cutting fluid for drilling CFRP-Ti6Al4V stacks as alternative to dry-drilling. Several tests were performed using dry-drilling technique, to compare this with the performance of CO2 cryogenic cooling. This work shows the feasibility of the proposed alternative, not only regarding technical issues but also environmental concerns. Results show that when CO2 is used in drilling, hole diameter values diverge below 0.5 % from nominal values, tool tip temperature is drastically reduced, and surface integrity of CFRP layers are preserved. Drilling tool edges damage is reduced and so tool life extended. In short, dry-drilling process was notably improved by CO2 assistance in comparison with dry drilling.
SN 1526-6125
YR 2021
FD 2021-04
LK https://hdl.handle.net/11556/3296
UL https://hdl.handle.net/11556/3296
LA eng
NO Rodríguez , A , Calleja , A , de Lacalle , L N L , Pereira , O , Rubio-Mateos , A & Rodríguez , G 2021 , ' Drilling of CFRP-Ti6Al4V stacks using CO 2 -cryogenic cooling ' , Journal of Manufacturing Processes , vol. 64 , pp. 58-66 . https://doi.org/10.1016/j.jmapro.2021.01.018
NO Publisher Copyright: © 2021 The Society of Manufacturing Engineers
DS TECNALIA Publications
RD 26 jul 2024