FORMATION OF PERFORMANCE AND QUALITY PARAMETERS OF DETAILS FROM PERMALLOY 50N AT TURNING
DOI:
https://doi.org/10.20535/2305-9001.2012.65.33946Keywords:
soft magnetic materials, permalloy 50H, advanced technology, tool materials, tungsten hard alloys, performance, quality characteristics, fine turning, chip formation, heat, cutting forces, cutting temperature, wear, micro-hardness, hardening.Abstract
Abstract. In various industries, such as instrumentation, electronics, aviation, modern technology processing soft magnetic materials is widely used. The processing of such materials reduces their basic performance - magnetic properties change qualitative characteristics - a supersonic boundary layer, the degree of hardening, the surface roughness. Therefore, more research is needed on the effect of treatment on the magnetic properties of the material and its quality parameters. From the literature it is known that the industry turning subtle details of permalloy alloys belonging to soft magnetic materials, it is very rarely used in the finalprocessing operations, despite higher performance compared to grinding. Pre-selection tool marks made taking into account its impact on the performance and quality characteristics of these alloys. The best results are shown KNT16 tungsten carbide, which provides the minimum value of the fall of the maximum magnetic permeability permalloy 50H. In the experiments, the influence of changing speeds and feeds at a constant cutting depth on the surface finish and the magnitude of the maximum magnetic permeability. The value of tool wear on the back of not more than 0.15 mm and varied on three levels. The research allowed to establish a number of mathematical functions to calculate the surface roughness of the machined surface and the values of the maximum magnetic permeability. The efficiency of magnetic parts and components of magnetic circuits are characterized not only the roughness of the machined surface, but its performance characteristics, which include their magnetic properties. Therefore, apart from excluding the value of roughness of the machined surface, the second constraint was selected value falling maximum
magnetic permeability. Optimization of the data limits for turning alloy 50H carried out using the method LPτ - sequences having the best characteristics of uniformity among all currently known uniformly distributed sequences.
References
1. Preobrazhenskij A.A. Magnitnye materialy i jelementy. (Magnetic materials and elements) Moscow: Vysshaja shkola, 1986. 352 p.
2. Rejnbot G.Magnitnye materialy i ih primenenie. (Magnetic materials and their applications) Leningrad: Jenergija,1974. 384p.
3. Spravochnik po jelektrotehnicheskim materialam. (Handbook of electrotechnical materials) (Pod red. Korickogo Ju.V., Pasynkova V.V., Tareeva B.M.), t. 3. Moscow: Jenergija, 1976. 896 p.
4. Precizionnye splavy. Spravochnik. (Precision alloys. Handbook.) Moscow: Metallurgija, 1983. 440 p.
5. Hek K. Magnitnye materialy i ih tehnicheskoe primenenie. (Magnetic materials and their technical application) Moscow: Jenergija, 1973. 303 p.
6. Vonsovskij S.V. Magnetizm. (Magnetism.) Moscow: Nauka,1971. 1032 p.
7. Kolesov I.M. Osnovy tehnologii mashinostroenija. (Fundamentals mechanical engineering technology) Moscow: Mashinostroenie.V 2-h. t., 1977.
8. Tehnologija mashinostroenija. (Technology of machine building) Pod red. A.M. Dal'skogo. V 2-h. t. – Moscow: Izd – vo MGTU im. N.Je. Baumana, 1998.
9. Matalin A.A. Tehnologija mashinostroenija. (Technology of machine building) Leningrad: Mashinostroenie, 1985. 472 p.
10. Klepikov V.V., Bodrov A.N. Tehnologija mashinostroenija. (Technology of machine building) Moscow: FORUM.2008. 864 p.
11. Ryzhov Je.V., Suslov A.G., Fedorov V.P. Tehnologicheskoe obespechenie jekspluatacionnyh svojstv detalej mashin. (Technological provision of operational properties of machine parts) Moscow: Mashinostroenie, 1979. 176 p.
12. Demkin N.B., Ryzhov Je.V. Kachestvo poverhnosti i kontakt detalej mashin. (Quality of the surface and the contact details of machines) Moscow: Mashinostroenie, 1981. 244 p.
13. Suslov A.G. Tehnologicheskoe obespechenie parametrov sostojanija poverhnostnogo sloja detali. (Technological provision the state parameters surface layer of part) Moscow: Mashinostroenie, 1987. 207 p.
14. Matalin A.A. Kachestvo poverhnosti i jekspluatacionnye svojstva detalej mashin. (Surface quality and operational properties of machine parts) Moscow – Leningrad: Mashgiz, 1956. – 252 p.
15. Matalin A.A. Tehnologija mehanicheskoj obrabotki. (Mechanical processing technology) Leningrad: Mashinostroenie, 1977. 462 p.
16. G. V. Samsonov, V. K. Vitrjanjuk, N.S. Ravskaja i dr. Fiziko-mehanicheskie svojstva bezvol'framovyh tverdyh splavov. (Physical and mechanical properties of tungstenfree hard alloys). V kn.: Tehnologija izgotovlenija izdelij iz tverdosplavnyh smesej v uslovijah melkoserijnogo proizvodstva. Kyiv : Resp. dom jekonom. i nauch.-tehn. propagandy, 1973, pp. 60 – 64.
17. Hrul'kov V. A. Mehanicheskaja obrabotka izdelij iz magnitnyh materialov v priborostroenii. (Mechanical processing products from magnetic materials in instrument manufacture) Moscow: Mashinostroenie, 1966.185 p.
18. Kolesov I.M. Osnovy tehnologii mashinostroenija. (Fundamentals of mechanical engineering technology) Moscow: Vysshaja shkola, 2001. 591 p.
19. Bodrov B.M. Osnovy tehnologii mashinostroenija. (Fundamentals of mechanical engineering technology) Moscow: Mashinostroenie, 2005. 736 p.
20. Yashcheritsyn P.I. Teorija rezanija. (Theory of cutting) Minsk: Novoe znanie, 2006. 528 p.
21. Makarov A.D. Optimizacija processov rezanija. (Optimization of cutting processes) Moscow: Mashinostroenie, 1976. 278 p.
22. Loladze T.N. Iznos rezhuwego instrumenta. (Wear of the cutting instrument) Moscow: Mashgiz, 1958. 354 p.
23. Zaks L. Statisticheskoe ocenivanie. (Statistical estimation) Moscow: Statistika, 1976. 598 p.
24. Dushinskij V.V., Puhovskij E.S., Radchenko S.G. Optimizacija tehnologicheskih processov v mashinostroenii. (Optimization of technology processes in engineering) Kyiv: Tehnіka, 1977. 175 p.
25. Malafeev Ju.M. Kachestvo poverhnosti pri lezvijnoj obrabotke splava 50N. (Surface quality with processing blade alloy 50H). V zhurn. «Vіsnik». Mashinobuduvannja. № 63, pp. 32 – 35.
26. Sobol' I.M., Statnikov R.B. LP-poisk i zadachi optimal'nogo konstruirovanija. (LP-search and problems of optimal designing). V kn.: Problemy sluchajnogo poiska. Riga: Znanie, 1972. no 1. pp. 117 – 135.
