Current studentsExisting staffContact us
 

Acoustic emission (AE) signatures of rock cutting response of an impregnated diamond drill bit

Simple item page
dc.contributor.authorKarakus, M.
dc.contributor.authorMay, T.
dc.contributor.authorOllerenshaw, D.
dc.contributor.conferenceWorld Congress on Engineering (2013 : London, England)
dc.contributor.editorAo, S.I.
dc.contributor.editorGelman, L.
dc.contributor.editorHukins, D.W.L.
dc.contributor.editorHunter, A.
dc.date.issued2013
dc.description.abstractExploration with impregnated diamond drill bits is the key operation in the mining and mineral industry. Demand for deep exploration drilling has significantly increased recently due to the rapid depletion of near surface mineral deposits globally. One of the main problems encountered during drilling operation is to infer bit wear in great depth remotely as the optimal performance of the drill still relies heavily on operator experience. This paper aims to assess the feasibility of Acoustic Emission (AE) monitoring of the impregnated diamond drilling process and establish relationships between AE and diamond drill bit wear, as well as establishing AE relationships with various drilling parameters. A full drill rig, Echidna drill apparatus, simulating field exploration diamond drilling on a small scale, were used to monitor AE during rock bit interaction. AE sensors were attached to both the drill and the rock to record acoustics being emitted during drilling. Initial tests on the Echidna drill involved stepping down the depth of cut from 130μm to 0μm, whilst keeping revolutions per meter (RPM) constant. Secondary tests performed on the Echidna drill involved accelerating the wear rate of the drill bit via two different types of wear in highly abrasive rock. Based on step test results, a series of linear relationships were developed which are capable of estimating the depth of cut, force by simply using time spectrum of the AE signals. Wear tests also showed that AE amplitudes start to trend down over the time of accelerated wear.
dc.description.statementofresponsibilityM. Karakus, T. May, D. Ollerenshaw
dc.description.urihttp://www.iaeng.org/publication/WCECS2013/
dc.identifier.citationProceedings of the World Congress on Engineering 2013, 2013 / S. I. Ao, L. Gelman, D. W.L. Hukins, A. Hunter, A. M. Korsunsky (eds.): Volume 3 pp.2068-2074
dc.identifier.isbn9789881925299
dc.identifier.issn2078-0958
dc.identifier.orcidKarakus, M. [0000-0001-6701-1888]
dc.identifier.urihttp://hdl.handle.net/2440/83885
dc.language.isoen
dc.publisherInternational Association of Engineers
dc.publisher.placeOnline
dc.relation.ispartofseriesLecture Notes in Engineering and Computer Science
dc.rightsCopyright status unknown
dc.source.urihttp://www.iaeng.org/publication/WCE2013/WCE2013_pp2068-2074.pdf
dc.titleAcoustic emission (AE) signatures of rock cutting response of an impregnated diamond drill bit
dc.typeConference paper
pubs.publication-statusPublished

Files

Collections

Civil and Environmental Engineering publications