Design and Engineering Support of the Process of Deep Drilling of Heat-resistant Steel

Purpose of research. To attain the specified parameters of deep drilling accuracy by creating design and engineering support for the deep drilling process corresponding to the current level of technical and technological development.

Methods. Analysis of machine tools and tool systems for drilling deep holes based on the monitoring of the conditions of machinery, equipment, cutting tools and tooling market of leading domestic and global manufacturers. Synthesis of a process system that ensures the creation of a product that meets the world level of quality with maximum process performance.

Results. The design and engineering support of the process of deep drilling of high-alloy heat–resistant steel using modern equipment with a high-performance tool - a gun drill, was created. The equipment for the deep drilling process – an anti-vibration rest, an oil receiver, a clamping chuck, a guide bush are proposed. The conditions for the control of flow chips formed during deep drilling with a gun drill and its removal from the processing zone with a cooling mixture are determined.

Conclusion. On the basis of the tooling for deep drilling of heat-resistant steel, the possibilities of using both existing at enterprises equipment and modern but expensive equipment, taking into account the series production, are shown. Both of these ways make it possible to ensure the specified accuracy and roughness of processing.

To implement the deep drilling process, it is required to design a special tool - a gun drill, taking into account the properties of the material being processed. When implementing the deep drilling process applying specialized equipment, the machining pattern is provided by the tooling of the machine. When implementing the process applying universal equipment, the selected machining pattern is connected with the design and manufacture of the tooling – a clamping chuck, an oil receiver, a guide bush. These tasks are implemented in two ways: by the specialists of the enterprise or involving third-party specialized organizations to design attachments and cutting tools. The choice of the way to implement the deep drilling process depends on the availability of equipment, the size of the batch of parts and technical and economic assessment.

1. Troitsky N.D. Glubokoe sverlenie [Deep drilling]. Leningrad, Mashinostroenie Publ.,1971. 176 p.

2. Kononenko S.G. Obrabotka glubokikh otverstii [Processing of deep holes]. Moscow, Mashinostroenie Publ., 1964. 41 p.

3. Minkov M.A. Tekhnologiya obrabotki glubokikh tochnykh otverstii [Technology of processing deep precise holes]. Moscow-Leningrad, Mashinostroenie Publ., 1965. 176 p.

4. Tuktanov A.G. Tekhnologiya proizvodstva strelkovo-pushechnogo i artilleriiskogo oruzhiya [Technology of production of small-gun and artillery weapons]. Moscow, Mashinostroenie Publ., 2007. 375 p.

5. Kozhevnikov D.V. Sovremennaya tekhnologiya i instrument dlya obrabotki glubokikh otverstii [Modern technology and tools for processing deep holes]. Moscow, NIIMASH Publ., 1981. 60 p.

6. Kirsanov S.V. Stanki dlya obrabotki glubokikh otverstii [Machines for processing deep holes. Guide.]. Spravochnik. Inzhenernyi zhurnal = Engineering Magazine, Engineering Journal, 2001, no.8(53), pp.46-49.

7. Goldrakh G.M., Dzhuguryan T.G., Kapitelman L.V. Stanki dlya glubokogo sverleniya [Machines for deep drilling]. Tekhnika mashinostroeniya = Machinery Engineering, 1966, no. 3 (9), pp. 39-41.

8. Gubergrits L.I., Drozdov F.M. Stanki dlya sverleniya i rastachivaniya glubokikh otverstii [Machines for drilling and boring deep holes]. Stanki i instrument = Machines and Tools, 1989, no. 4, pp. 2-4.

9. Lipatov A.N. Glubokoe sverlenie na stankakh s ChPU [Deep drilling on CNC machines]. Stanki i instrument = Machines and Tools, 1991, no. 5, pp.29-31.

10. Sokolov A.V., Vyatkin M.D., Shenderov I.B., etc. Obespechenie pryamolineinosti kanalov pri proizvodstve trubnykh zagotovok [Ensuring the straightness of channels in the production of pipe blanks]. Khimicheskoe i neftegazovoe mashinostroenie = Chemical and Oil and Gas Engineering, 2000, no.12, pp. 48-49.

11. Litvinov L.P. Vibrosverlenie glubokikh otverstii [Vibration drilling of deep holes]. Vestnik mashinostroeniya = Bulletin of Mechanical Engineering, 1990, no.5, pp. 22-24.

12. Kirillin B.N. Vibratsionnoe sverlenie ruzheinymi sverlami [Vibration drilling with rifle drills]. Stanki i instrument = Machines and Tools, 1968, no. 5, pp. 22-24.

13. Yatsun E. I., Anikeeva N. P, Karnaukhov I. S. Increase in Processing Efficiency of Long-Length Shafts. Izvestiya Yugo-Zapadnogo gosudarstvennogo universiteta = Proceedings of the Southwest State University. 2019; 23(1): 43-53 (in Russ.). https://doi.org/10.21869/2223-1560-2019-23-1-43-53.

14. Yatsun E.I., Zubkova O.S., Gordeykov A.V., Zubkov D.A. Uvelichenie dinamicheskoi zhestkosti rastochnykh opravok [Increasing the dynamic rigidity of boring mandrels]. Fundamental'nye i prikladnye problemy tekhniki i tekhnologii = Fundamental and Applied Problems of Engineering and Technology, 2020, no. 3 (341), pp. 45-50.

15. Kirsanov S.V. Smazochno-okhlazhdayushchie tekhnologicheskie sredstva, primenyaemye pri obrabotke glubokikh otverstii [Lubricating and cooling technological meansused in the processing of deep holes]. Guide. Inzhenernyi zhurnal = Engineering Journal, 2001, no.6(51), pp.5-7.

16. Buyanovskiy I.A. K otsenke nizhnikh temperaturnykh predelov deistviya khimicheski aktivnykh prisadok [To the assessment of the lower temperature limits of the action of chemically active additives]. Trenie i iznos = Friction and Wear, 1981, vol. 2, no. 4,pp. 703-707.

17. Kirsanov S.V. Sovremennye konstruktsii instrumentov dlya sverleniya i rastachivaniya glubokikh otverstii [Modern designs of tools for drilling and boring deep holes]. Guide. Inzhenernyi zhurnal = Engineering Journal, 2005, no.2(95), pp.46-53.

18. Kirsanov S.V., Grechishnikov V.A., Skhirtladze A.G., Kokarev V.I. Instrumenty dlya obrabotki tochnykh otverstii [Tools for processing precise holes]. Moscow, Mashinostroenie Publ., 2005. 336 p.

19. Yatsun E.I. Instrumental'nye sistemy dlya obrabotki detalei gidrotsilindrov [Tool systems for processing hydraulic cylinder parts]. Kursk, 2020. 117 p. (In Russ.)

20. Yatsun E.I., Malykhin V.V., Zubkova O.S., Novikov S.G. Instrumental'noe obespechenie protsessa mekhanicheskoi obrabotki tverdymi splavami i kompozitami [Instrumental support of the machining process with hard alloys and composites]. Kursk, 2016. 224 p.