Open AccessThe feasibility evaluation of using cyclic thermal effect in the rock-cutting tools during drilling hard rock
Author(s) -
Valentyn Hankevich,
Tetiana Moskalova,
Liudmyla Kabakova,
Oksana Livak
Publication year - 2019
Publication title -
e3s web of conferences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.203
H-Index - 22
eISSN - 2555-0403
pISSN - 2267-1242
DOI - 10.1051/e3sconf/201910900026
Subject(s) - drilling , cracking , thermal , geology , softening , petroleum engineering , materials science , geotechnical engineering , metallurgy , composite material , physics , meteorology
The possibility of using cyclic thermal effect in drilling tools for softening of rocks is considered in the article. It is shown that during drilling in the phase of heating, the rock sections can actually be heated to 1000 °C, and it is possible to achieve even higher temperatures with the use of corresponding frictional heating elements. It has been found that the phase of cooling of the heated section of the rock can ensure guaranteed cracking of the rock for subsequent mechanical destruction.