Skip to main content
Top
Published in:

01-07-2024 | Original Paper

Evaluation of fine material and chip formation in rock cutting with a conical tool

Authors: Mohammad Hossein Kadkhodaei, Ebrahim Ghasemi, Jafar Khademi Hamidi, Jamal Rostami

Published in: Bulletin of Engineering Geology and the Environment | Issue 7/2024

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

The production of fines and chips during rock cutting plays an essential role in the efficiency of rock cutting, which in turn impacts productivity and performance of mechanical excavators. In this study, small scale linear rock cutting experiments were conducted using a conical tool on thirteen sedimentary and metamorphic rock samples to evaluate the transition between ductile to brittle cutting mode by examining the volume of fines versus chips produced in the process of cutting. Cuts with depths of 0.5, 0.8, 1, 2, 3, 4, 5, and 6 mm were made to investigate the production of fines and chips in unrelieved cutting mode. The forces acting on the conical tool, cutting rate, and volume of fines were measured. Initially, the critical cutting depth was determined by analyzing the cutting force signals, aiming to identify both ductile and brittle cutting failure zones. Subsequently, the percentage of fines were classified into three classes using the hierarchical clustering algorithm. Finally, the support vector machine algorithm was employed to create a two-dimensional space utilizing cutting parameters, enabling the identification of the fines to chip transition zone. The effective cutting depth was determined based on specific energy variations, and subsequently, the effective limit was determined in the fines transition zone. The results showed that cutting depths lower than the critical value lead to the production of high fines under ductile failure mode. Also, the results obtained from assessing the performance of the two-dimensional fines space, predicated on cutting parameters, demonstrated that the developed model effectively evaluates the fines transition zone with a high level of accuracy. The results of this study can help in managing the fines production.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Literature
go back to reference Abu Bakar MZ, Gertsch LS (2011) Saturation efects on disc cutting of sandstone. In: Proceedings of the 45th US rock mechanics/geomechanics symposium. San Francisco, USA, pp 1–9 Abu Bakar MZ, Gertsch LS (2011) Saturation efects on disc cutting of sandstone. In: Proceedings of the 45th US rock mechanics/geomechanics symposium. San Francisco, USA, pp 1–9
go back to reference ASTM D2938-95 (1995) Standard test method for unconfned compressive strength of intact rock core specimens. American Society for Testing and Materials, West Conshohocken ASTM D2938-95 (1995) Standard test method for unconfned compressive strength of intact rock core specimens. American Society for Testing and Materials, West Conshohocken
go back to reference ASTM D3967-95 (1995) Standard test method for splitting tensile strength of intact rock core specimens. Annual Book of ASTM Standards, American Society for Testing and Materials, West Conshohocken ASTM D3967-95 (1995) Standard test method for splitting tensile strength of intact rock core specimens. Annual Book of ASTM Standards, American Society for Testing and Materials, West Conshohocken
go back to reference ASTM D4543-08 (2008) Standard practices for preparing rock core as cylindrical test specimens and verifying conformance to dimensional and shape tolerances. Annual Book of ASTM Standards, American Society for Testing and Materials, West Conshohocken ASTM D4543-08 (2008) Standard practices for preparing rock core as cylindrical test specimens and verifying conformance to dimensional and shape tolerances. Annual Book of ASTM Standards, American Society for Testing and Materials, West Conshohocken
go back to reference Bieniawski ZT (1989) Engineering rock mass classification. Wiley, New York Bieniawski ZT (1989) Engineering rock mass classification. Wiley, New York
go back to reference Bilgin N (1977) Investigation into mechanical cutting characteristics of some medium and high strength rocks. PhD Thesis, University of Newcastle upon Tyne, UK Bilgin N (1977) Investigation into mechanical cutting characteristics of some medium and high strength rocks. PhD Thesis, University of Newcastle upon Tyne, UK
go back to reference Bilgin N, Copur H, Balci C (2014) Mechanical excavation in mining and civil industries. CRC Press, Taylor and Francis Group, London Bilgin N, Copur H, Balci C (2014) Mechanical excavation in mining and civil industries. CRC Press, Taylor and Francis Group, London
go back to reference Bilgin N, Demircin MA, Copur H et al (2006) Dominant rock properties affecting the performance of conical picks and the comparison of some experimental and theoretical results. Int J Rock Mech Min Sci 43:139–156CrossRef Bilgin N, Demircin MA, Copur H et al (2006) Dominant rock properties affecting the performance of conical picks and the comparison of some experimental and theoretical results. Int J Rock Mech Min Sci 43:139–156CrossRef
go back to reference Bruland A (2000) Hard rock tunnel boring: vol 1–10. Norwegian University of Science and Technology (NTNU), Trondheim, Norway Bruland A (2000) Hard rock tunnel boring: vol 1–10. Norwegian University of Science and Technology (NTNU), Trondheim, Norway
go back to reference Bruland A (1998) Hard rock tunnel boring design and construction. Norwegian University of Science and Technology, Trondheim, Norway Bruland A (1998) Hard rock tunnel boring design and construction. Norwegian University of Science and Technology, Trondheim, Norway
go back to reference Che D, Han P, Peng B, Ehmann KF (2014) Finite Element Study on Chip Formation and Force Response in Two- Dimensional Orthogonal Cutting of Rock. Paper presented at the ASME 2014 International Manufacturing Science and Engineering Conference, Detroit, Michigan, USA. https://doi.org/10.1115/MSEC2014-3952 Che D, Han P, Peng B, Ehmann KF (2014) Finite Element Study on Chip Formation and Force Response in Two- Dimensional Orthogonal Cutting of Rock. Paper presented at the ASME 2014 International Manufacturing Science and Engineering Conference, Detroit, Michigan, USA. https://​doi.​org/​10.​1115/​MSEC2014-3952
go back to reference Copur H, Bilgin N, Tuncdemir H, Balci C (2003) A set of indices based on indentation tests for assessment of rock cutting performance and rock properties. J S Afr Inst Min Metall 103:589–599 Copur H, Bilgin N, Tuncdemir H, Balci C (2003) A set of indices based on indentation tests for assessment of rock cutting performance and rock properties. J S Afr Inst Min Metall 103:589–599
go back to reference Evans I, Pomeroy C (1966) The strength, fracture and workability of coal. Pergamon Press, Oxford Evans I, Pomeroy C (1966) The strength, fracture and workability of coal. Pergamon Press, Oxford
go back to reference Han J, Pei J, Kamber M (2011) Data mining: concepts and techniques, 3rd edn. Morgan Kaufmann, San Mateo, CA, USA Han J, Pei J, Kamber M (2011) Data mining: concepts and techniques, 3rd edn. Morgan Kaufmann, San Mateo, CA, USA
go back to reference Ip C (1986) Laboratory water jet assisted drag tool rock cutting studies at high traverse speeds. University of Newcastle upon Tyne, UK Ip C (1986) Laboratory water jet assisted drag tool rock cutting studies at high traverse speeds. University of Newcastle upon Tyne, UK
go back to reference Jeong H, Jeon S (2018) Characteristic of size distribution of rock chip produced by rock cutting with a pick cutter. Geomech Eng 15:811–822 Jeong H, Jeon S (2018) Characteristic of size distribution of rock chip produced by rock cutting with a pick cutter. Geomech Eng 15:811–822
go back to reference Ketchen D, Shook C (1996) The application of cluster analysis in strategic management research: an analysis and critique. Strateg Manag J 17:441–458CrossRef Ketchen D, Shook C (1996) The application of cluster analysis in strategic management research: an analysis and critique. Strateg Manag J 17:441–458CrossRef
go back to reference Ma Y, Guo G (2014) Support vector machines applications. Springer International Publishing, New YorkCrossRef Ma Y, Guo G (2014) Support vector machines applications. Springer International Publishing, New YorkCrossRef
go back to reference Mohammadi M, KhademiHamidi J, Rostami J, Goshtasbi K (2020) A closer look into chip shape/size and efficiency of rock cutting with a simple chisel pick: a laboratory scale investigation. Rock Mech Rock Eng 53:1375–1392CrossRef Mohammadi M, KhademiHamidi J, Rostami J, Goshtasbi K (2020) A closer look into chip shape/size and efficiency of rock cutting with a simple chisel pick: a laboratory scale investigation. Rock Mech Rock Eng 53:1375–1392CrossRef
go back to reference Rostami J, Gertsch R, Gertsch L (2002) Rock fragmentation by disc cutter: a critical review and an update. In: Proceedings of the North American Rock Mechanics Symposium (NARMS), Tunneling Association of Canada (TAC) Meeting, Toronto, Canada Rostami J, Gertsch R, Gertsch L (2002) Rock fragmentation by disc cutter: a critical review and an update. In: Proceedings of the North American Rock Mechanics Symposium (NARMS), Tunneling Association of Canada (TAC) Meeting, Toronto, Canada
go back to reference Roxborough F (1973) Cutting rocks with picks. The Mining Eng, 445–455 Roxborough F (1973) Cutting rocks with picks. The Mining Eng, 445–455
go back to reference Roxborough F, King P, Pedroncelli E (1981) Tests on the cutting performance of a continuous miner. J South Afr Inst Min Metall 81:9–25 Roxborough F, King P, Pedroncelli E (1981) Tests on the cutting performance of a continuous miner. J South Afr Inst Min Metall 81:9–25
go back to reference Villeneuve MC (2017) Hard rock tunnel boring machine penetration test as an indicator of chipping process efficiency. J Rock Mech Geotech Eng 9:611–622CrossRef Villeneuve MC (2017) Hard rock tunnel boring machine penetration test as an indicator of chipping process efficiency. J Rock Mech Geotech Eng 9:611–622CrossRef
Metadata
Title
Evaluation of fine material and chip formation in rock cutting with a conical tool
Authors
Mohammad Hossein Kadkhodaei
Ebrahim Ghasemi
Jafar Khademi Hamidi
Jamal Rostami
Publication date
01-07-2024
Publisher
Springer Berlin Heidelberg
Published in
Bulletin of Engineering Geology and the Environment / Issue 7/2024
Print ISSN: 1435-9529
Electronic ISSN: 1435-9537
DOI
https://doi.org/10.1007/s10064-024-03771-1

Other articles of this Issue 7/2024

Bulletin of Engineering Geology and the Environment 7/2024 Go to the issue