Hardening of the cutting tool by the coatings
Keywords:
nanocoating, cutting tools, microhardness, structure, phase composition, self-sharpening, plastic deformation, damageabilityAbstract
Raising of problem. The existing operational stability of the thin-walled circular knife does not satisfy the requirements of the confectionery production and it has been provided with additional reinforcement by the nanocoating on one side (the cutting edge and the basis). At that the effective application is the coating on the basis blade both in the form of ribs, as well as continuous coating. For this the WC coating of 20…100 nm thickness has been applied. It was obtained by the PVD method using RF discharge in a stationary external magnetic field. Aim. Improving the efficiency of the proposed technology of hardening by spraying with the formation of WC nanocoating to provide the stable operation of knifes. Technique. A combined approach has been proposed for estimation of the coating influence on operation durability of knifes, which includes features of the formed type and number of phases in the coating, their properties and behavior during deformation, wear. For the description of the phase composition the new method of mathematical processing of the metallographic structure images has been proposed. Results. Features of the components distribution in the nanocoating at recommended processing parameters, which inhibit rapid degradation of the product during operation, have been studied. Scientific novelty. Nature of material behavior during the deformation before and after application of has been defined. Recommended parameters of hardening provide stability of the carbide phase W2C, WC, WС1-х and intermediate carbide containing the W–Fe–C. Practical importance. The new technological process of hardening of the thin-walled cutting tool by the WC nanocoatings has been proposed, which provides increasing of operational durability by 10…20 times compared with disk knifes of the source material (steel 65G after annealing and tempering). It was achieved due to the stability of the structure at operation, decreasing of the inclination to destruction of the cutting edge and resistance to fatigue damage of its main part. The coatings provided the increasing of corrosion resistance and self-sharpening of the knives.
References
Вакуумно-дуговые устройства и покрытия : монография / [А. А. Андреев, В. П. Саблев, В. М. Шулаев, С. Н. Григорьев]. – Харьков : ННЦ «ХФТИ», 2005. – 235 с.
A.A. Andreev, V.P. Sablev, V.M. Shulaev and S.N. Grigor'ev. Vakuumno-dugovye ustrojstva i pokrytiya [Vacuum arc devices and coatings : monograph]. Har'kov : NNC «HFTI», 2005, 235 р. (in Russian).
Гудремон Э. Специальные стали. Том второй / Э. Гудермон. – Москва : Металлургия, 1966. – 1275 с.
Gudremon Е. Special'nye stali. [Special steel] T. 2, Moscow : Metallurgiya Publ., 1966, 1275 р. (in Russian).
Двойные и тройные карбидные и нитридные системы переходных металлов : Справ.изд. Холлек Х. / Под ред. Левинского Ю. В. – Москва : Металлургия, 1988. – 319с.
Hollek H. Dvojnye i trojnye karbidnye i nitridnye sistemy perekhodnyh metallov [Double and triple carbide and nitride of transition metals]. Ed. by Levinskiy Yu.V. Moscow : Metallurgiya Publ., 1988, 319 р. (in Russian).
Нарита К. Структура неметаллических включений в стали / К. Нарита; под. ред. П. П. Арсентьева. – Москва : Металлургия, 1969. – 190 с.
Narita K. Kristallicheskaya struktura nemetallicheskih vklyuchenij v stali [Crystal structure of nonmetallic inclusions in steel]. Ed. by P.P. Arsent'eva. Moscow : Metallurgiya Publ., 1969, 190 р. (in Russian).
Патент № 95489 Україна, МПК (2015.01) В23Р 9/00, С21D 1/00. Спосіб наноструктурного зміцнення тонкостінного різального інструменту / Скобло Т. С., Романюк С. П., Сідашенко О. І., Гаркуша І. Є., Бирка О. В., Муратов Р. М.; заявник та патентоутримувач Романюк С. П. № u201407614. заявл. 07.07.2014.; опубл. 25.12.14., Бюл. № 24.
Patent № 95489 Ukraїna, MPK (2015.01) V23R 9/00, S21D 1/00. Sposіb nanostrukturnogo zmіcnennya tonkostіnnogo rіzhuchogo іnstrumentu [Method of nanostructured hardening of the thin-walled cutting tool] / Skoblo T.S., Romanyuk S.P., Sіdashenko O.І., Garkusha І.Є., Birka O.V. and Muratov R.M.; applicant Romanyuk S.P. No. u201407614. appl. 07.07.2014.; publ. 25.12.14. Bull. No. 24. (in Ukrainian).
Романюк С. П. Анализ методов упрочнения режущих инструментов // Вісник ХНТУСГ : [«Ресурсозберігальні технології, матеріали та обладнання у ремонтному виробництві»]. – Вип. 133. – Харків, 2013. – С. 136–142.
Romanyuk S.P. Analiz metodov uprochneniya rezhushchih instrumentov [Analysis of strengthening cutting tools methods]. Vіsnik HNTUSG: [«Resursozberіgayuchі tekhnologії, materіali ta obladnannya u remontnomu virobnictvі»]. Vol. 133, Harkіv, 2013, pp. 136–142. (in Russian).
Скобло Т. С. Процессы, происходящие в тонкостенных ножах при их изготовлении и эксплуатации / Т. С. Скобло, С. П. Романюк, Е. Л. Белкин, А. И. Сидашенко // Промышленность в ФОКУСЕ. – 2014. – № 3. – С. 54–57.
Skoblo T.S., Romanjuk S.P., Belkin E.L. and Sidashenko A.I. Processy, proishodjashhie v tonkostennyh nozhah pri ih izgotovlenii i jekspluatacii [Processes occurring in the thin walled knives during their manufacture and operation]. Promyshlennost' v FOKUSE [Industry in FOCUS]. 2014,
no. 3, pp. 54–57. (in Russian).
Скобло Т. С. Применение компьютерного анализа металлографических изображений при исследовании структуры высокохромистого чугуна / Т. С. Скобло, О. Ю. Клочко, Е. Л. Белкин // Заводская лаборатория. Диагностика материалов. – 2012. – № 6 (78). – С. 35–42.
Skoblo T.S., Klochko O.Yu. and Belkin E.L. Primenenie komp'yuternogo analiza metallograficheskih izobrazhenij pri issledovanii struktury vysokohromistogo chuguna [The use of computer analysis of metallographic images in the study of the structure of high chrome cast iron]. Zavodskaya laboratoriya. Diagnostika materialov [Factory Laboratory. Diagnosis materials]. 2012, no. 6 (78), pp. 35–42. (in Russian).
M. Nastasi, W. Moller and W. Ensinger. Ion implantation and thin-film deposition. Handbook of plasma immersion, ion implantation and deposition. Edited by A. Anders. N. Y., USA, 2000, 736 p.
Рatent US 4450205 A C23C14/16, C23C14/06E, C23C30/00B, C23C14/06G, C23C14/02B2, C23C14/06, C23C14/06F. Vapor-deposited layer of titanium between substrate and layer of titanium carbide or nitride; bonding. Takeshi Itaba, Shotaro Matsumoto, Takeshi Abe. Application no. US 06/399,802, filing date July 19, 1982, publication date May 22, 1984.
Рatent US 4945640 A C23C30/00B, C23C16/30, C23C28/00, C23C16/32, C23C16/08, C23C16/14. Multilayer; noble metal base, exterior overcoating of mixture of tunsten and tungsten carbide / Diwakar Garg, Carl F. Meuller, Ernest L. Wrecsics, Paul N. Dyer, Mark A. Pellman. Application no. US 07/319,774, filing date Mar 7, 1989, publication date Aug 7, 1990.
Рatent US 5799549 A H01J37/32M4, C23C14/06B2, C23C14/32A, C23C14/06B, C23C14/22D, B26B21/60. Amorphous diamond coating of blades. Thomas G. Decker, Gregory P. Lundie, David L. Pappas, Richard P. Welty, C. Robert Parent, Less. Application number US 08/825,405 Filing date Mar. 27, 1997, Publication date Sep. 1, 1998.
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