TY - GEN
T1 - Experimental investigation of drilling performance of PCD compact core drills on basalt simulating sustainable dry drilling on mars
AU - Manthri, S.
AU - Pusavec, F.
AU - Zacny, K. A.
AU - Taylor, L. A.
AU - Dillon, O. W.
AU - Jawahir, I. S.
PY - 2008
Y1 - 2008
N2 - Missions to Mars aim to characterize rock and subsurface soil samples and possibly bring some back to Earth for more thorough and sophisticated examination. The Martian surface is known to be partially covered with basalt which has high compressive strength, and is more difficult to drill than the much softer sedimentary formations. The experiments were designed to study the tool-wear mechanisms and to understand the associated effects on drilling of basalt. Core drilling experiments were conducted under different cutting conditions on the Martian simulant, basalt. Thrust force and torque were monitored and drill-wear was measured for each drilling test condition for a series of successive depth-increments. Based on the experimental results an optimization model was developed for maximizing the drilling depth at minimum tool-wear. This preliminary work is expected to help the development of smart drills for sustainable dry drilling applications in future NASA missions to Mars. Keywords: Core drilling, PCD compact, Basalt, Sustainable dry drilling, Mars
AB - Missions to Mars aim to characterize rock and subsurface soil samples and possibly bring some back to Earth for more thorough and sophisticated examination. The Martian surface is known to be partially covered with basalt which has high compressive strength, and is more difficult to drill than the much softer sedimentary formations. The experiments were designed to study the tool-wear mechanisms and to understand the associated effects on drilling of basalt. Core drilling experiments were conducted under different cutting conditions on the Martian simulant, basalt. Thrust force and torque were monitored and drill-wear was measured for each drilling test condition for a series of successive depth-increments. Based on the experimental results an optimization model was developed for maximizing the drilling depth at minimum tool-wear. This preliminary work is expected to help the development of smart drills for sustainable dry drilling applications in future NASA missions to Mars. Keywords: Core drilling, PCD compact, Basalt, Sustainable dry drilling, Mars
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U2 - 10.1061/40988(323)115
DO - 10.1061/40988(323)115
M3 - Conference contribution
AN - SCOPUS:70349405529
SN - 9780784409886
T3 - Earth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
BT - Earth and Space Conference 2008
T2 - Earth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
Y2 - 3 March 2008 through 5 March 2008
ER -