Problem statement and the research purpose. The aim of this article is to analyse the wear of drill bits and to identify the elements of the bit that are responsible. Methods. The introduction of computerisation and automation in mechanical engineering has radically changed the approach to drill bit design. The hierarchy of functional elements of the drill bit is represented by a graph in which the drill bit as a product has the following levels: parts, components, zones. A comparative assessment of the quality of the roller cutter was carried out by determining the permissible deviations from the actual value of the quality indicator. Results. It was found that the coefficient of interaction between machines and the control of technological inheritance are also important in the technological route. It is known that heat treatment is a kind of barrier in the technological route, and its influence on the quality of blanks and finished pellets requires a separate study. Scientific novelty and practical importance. The study allows us to find alternatives which are carried out according to the criterion of minimising deviations and which are recorded on technological operations. The parametric approach is effective for this purpose. It allows to formalise the objective function as a generalised quality criterion.
- Thiyagu M., Karunamoorthy L., Arunkumar N. Thermal and tool wear characterization of graphene oxide coated through magnetorheological fluids on cemented carbide tool inserts. Archives of Civil and Mechanical Engineering. 2019. Vol. 19, Iss. 4. P. 1043–1055. doi: 10.1016/j.acme.2019.05.005.
- Yakym R. S., Petryna Yu. D., Yakym I. S. “Naukovo-praktychni osnovy tekhnolohiyi vyhotovlennya trysharoshkovykh burovykh dolit ta pidvyshchennya yikh yakosti i efektyvnosti” [“Scientific and practical basics of the technology of manufacturing three-layer drill bits and improving their quality and efficiency”] monograph. Ivano- Frankivsk: IFNTUNG Publishing House, pp. 384 . 2011. [in Ukrainian] http://www.irbis-nbuv.gov.ua/publ/REF- 0000291650
- Wei M. D., Dai F., Xu N. W., Liu J. F., Xu Y. Experimental and numerical study on the cracked chevron notched semi-circular bend method for characterizing the mode I fracture toughness of rocks. Rock Mechanics and Rock Engineering. 2016. 49(5). P. 1595–1609. doi: 10.1007/s00603-015-0855-2.
- Varel international Makers of world class drilling bits: catalogues / [Varel international corporate headquarters] – Carrollton, Texas: Ridgeback Marathon, 2004. – 24 p.
- The Leading Edge of Drilling technology Drilbits International Private Limited: catalogues / [R. Abraham, A Member of Wah Seong Corporation Berhad.]. – Nashik, Maharashtra (India): Greaves & DBI, – 2005. – 24 p.
- Smith technologies: Product Catalog / [Headquarters Smith International]. – U.S.A. Texas, Houston: Smith International, Inc., 2008. – 65 с.
- Pandey, P., Mukhopadhyay, K., Chattopadhyaya S.: Reliability Analysis and Failure Rate Evaluation for Critical Subsystems of the Dragline. Journal of the Brazilian Society of Mechanical Sciences and Engineering 40 (2), 1-11 (2018). doi:10.1007/s40430-018-1016-9.
- Yakym R.S., Prtryna D.Yu. Analysis of Causes and Preventing Ways of Eary Workability Loss of Three- Cone Rock Bit Cutters. Metallophysics and Advanced Technologies. Vol. 42, №5, May, 2020. p.731 – 751.
- Yakim, R., Petrina Yu.D.: Theory and Practice of Quality Assurance and Operational Indicators of Cemented Parts of Cone Drill Bits. Monograph. IFNTUNG Publ. Ivano-Frankovsk, (2011).
- Slipchuk A. M., Yakym R. S. Vplyv tekhnolohichnykh parametriv skladannya zʺyednannya «zubok- sharoshka» na yakistʹ vstavnoho tverdosplavnoho osnashchennya sharoshok burovykh dolit [“The influence of the technological parameters of the assembly of the "tooth-ball" connection on the quality of the insertable hard alloy equipment of the balls of drill bits”] [Bulletin of the National Technical University "KhPI". Series: New solutions in modern technology”]. Vol.3 no5. pp. 3–8. 2020. [in Ukrainian] doi:10.20998/2413-4295.2020.01.01
- Satya Prakash, Mukhopadhyay, A.: Reliability Analysis of Tricone Roller Bits with Tungsten Carbide Insert in Blasthole Drilling. Journal International Journal of Mining, Reclamation and Environment 34(2), 101-118. (2020) doi.org/10.1080/17480930.2018.1530055
- Shigemi N. Feasibility Study on Roller-Cone Bit Wear Detection from Axial Bit Vibration. Journal of Petroleum Science and Engineering, Vol. 82, pp.140-150, 2012.
- Yang Y, Song D, Chen H, Chen X and Chen L 2021 The research on the fixation strength of tapered cone bit teeth Eng. Fail. Anal. Vol. 124. https://doi.org/10.1016/j.engfailanal.2021.105318
- A. Slipchuk, R. Jakym “Vplyv tekhnolohichnykh parametriv na nadiynistʹ kriplennya vstavnoho tverdosplavnoho porodoruynivnoho osnashchennya burovykh dolit” [“The influence of technological factors on the reliability connection for tungsten carbide inset cutter of roller cone bits”] // Avtomatizacìâ virobničih procesìv u mašinobuduvannì ta priladobuduvannì. – Vol.55. – pp. 95 – 105. – 2021 [in Ukrainian] DOI: 10.23939/istcipa2021.55.095
- Slipchuk A and Jakym R. Technological Parameters of Hole Shaping in the Cones Rolling-Cutter Row of Roller Cone Bits. Lecture Notes in Mechanical Engineering . pp 123–132 . 2021 DOI: 10.1007/978-3-030-77719-7_13
- Yakym R. S., Petryna D. Yu. Increase of durability of three-cone rock bit cutters. Journal of Hydrocarbon Power Engineering. 2017, Vol. 4, Issue 2 – P. 49 – 53.