THE MODEL OF QUALITY MANAGEMENT OF PRODUCTION OF THE DEPOSITED DETAILS ON THE BASIS OF SYSTEM AND PROCESS APPROACHES

Based on the theoretical and experimental studies carried out using the graphical method of analyzing cause-and-effect relationships (Isikava diagram), a model of integrated quality management of manufacturing of surfaced machine parts and mechanisms has been developed. It is proposed to improve the diagram of the application of system and process approaches to quality management, as described in the international standards ISO 9000:2008. When considering the diagram, it is proposed to consider factor indicators as a system of interrelated processes, and the result of these processes as a system of basic indicators of product quality. According to the level of detail of the consideration of processes, it is proposed to classify them: top-level processes; detailed processes; elementary processes (operations that do not require a more detailed description). At the same time, the main reasons affecting quality are proposed to be considered as top-level processes, secondary reasons as detailed processes, and third-order reasons as elementary processes. A model of manufacturing quality management of deposited parts of machines and mechanisms is proposed (on the example of the technological process of manufacturing deposited working rolls of cold rolling), built on the basis of the Isika diagram using the 5M stratification method, which takes into account factors depending on the person, machine, material, method, measurement. The detailed processes include problems related to the prevention of the formation of cold cracks and the effective use of the properties of high-alloyed deposited metal. The model has been tested in solving the problem of improving the quality and durability of surfaced rolling rolls using complex hardening technologies (plasma surfacing, heat treatment, nitriding, ultrasonic surface hardening treatment).

1. Frumin I.I. Automatic electric arc surfacing. Khar'kov: Metallurgizdat, 1961, 421 p. (In Russ.).

2. Technology of electric welding of metals and alloys by melting. Paton B.E. ed. Moscow: Mashinostroenie, 1974, 768 p. (In Russ.).

3. Tylkin M.A. Improving the durability of parts of metallurgical equipment. Moscow: Metallurgiya, 1971, 608 p. (In Russ.).

4. Yuzvenko Yu.A., Kirilyuk G.A. Surfacing with powder wire. Moscow: Mashi-nostroenie, 1973, 45 p. (In Russ.).

5. Pokhodnya I.K., Suptel' A.M., Shlyapakov V.N. Welding with powder wire. Kiev: Naukova dumka, 1972, 223 p. (In Russ.).

6. Polukhin V.P., Nikolaev V.A., Shul'man P.G. Reliability and durability of cold rolling rolls. Moscow: Metallurgiya, 1979, 503 p. (In Russ.).

7. Malushin N.N., Valuev D.V. Ensuring the quality of metallurgical equipment parts at all stages of their life cycle by applying plasma surfacing with heat-resistant steels. Tomsk: Izd-vo Tomskogo politekhnicheskogo universiteta, 2013, 358 p. (In Russ.).

8. Sidorov A.I. Restoration of machine parts by spraying and surfacing. Moscow: Mashi-nostroenie, 1987, I92 p. (In Russ.).

9. Vainerman A.E., Veselkov V.D., Novo-sadov V.S. Plasma surfacing of metals. Leningrad: Mashinostroenie, 1969, 190 p. (In Russ.).

10. Bataev V.A., Bataev A.A. Composite materials: structure, production, and application. Novosibirsk: NGTU, 2002, 383 p. (In Russ.).

11. Paton B.E. Problems of welding at the turn of the century. Svarshchik. 1999, no. 1, pp. 2–3. (In Russ.).

12. Isikava K. Japanese methods of quality managemen. Moscow: Ekonomika, 1988, 215 p. (In Russ.).

13. Quality in the history of civilization. Evolution, trends and prospects of quality management. V 3 t. Dzhurana Dzh. ed. Moscow: Standarty i kachestvo, 2004. (In Russ.).

14. Okrepilov V.V. Quality management. Sankt-Peterburg: Nauka, 2000, 911 p. (In Russ.).

15. Malushin N.N., Sil'vestrov Yu.G. Some aspects of general quality management (TQM). Novokuznetsk: SibGIU, 2011, 376 p. (In Russ.).

16. GOST R ISO 9001 – 2008 Quality Manage-ment Systems. Requirements. Introduction. 2008.12.18. Moscow: Izd-vo standartov, 2009, 21 p. (In Russ.).

17. Kaibyshev O.A. Plasticity and super-plasticity of metals. Moscow: Metallurgiya, 1975, 280 p. (In Russ.).

18. Superplasticity of metal materials. Shorshorov M.Kh. ed. Moscow: Nauka, 1973, 220 p. (In Russ.).

19. Malushin N.N., Romanov D.A., Kovalev A.P., Osetkovskii V.L., Bashchenko L.P. Structural-phase state of a heat-resistant high-hardness alloy formed by plasma surfacing in a nitrogen medium and high-temperature tempering. Izvestiya vuzov. Fizika. 2019, vol. 62, no. 10 (742), pp. 106–111. (In Russ.).