DOI: https://doi.org/10.15587/1729-4061.2019.171808

Effect of the integrated treatment on the manufacturing of printing cylinders

Svetlana Zyhulia, Oksana Barauskiene

Abstract


We have developed a comprehensive technology to strengthen printing cylinders by forming a regular microrelief at the surface followed by chromium-plating.

Our research into the influence of comprehensive machining of a printing cylinder on the quality of printed products has established the mechanism for obtaining high quality parameters for the working surface of printing cylinders. Application of vibratory tool with a radius of R=2 mm, at effort P=550 N, the surface roughness amounted to the arithmetic mean deviation Ra 0.63 µm, which is 7.6 times lower than that without applying the surface-plastic deformation. A comprehensive machining of a printing cylinder includes a combination of the vibration knurling with the formation of the all-new regular microrelief followed by chromium-plating. Vibration knurling was performed at a tool indentation effort of 50‒600 N; a spindle rotation frequency of 25‒2,000 rpm; a deformative tool eccentricity of 0.2‒1.0 mm; a deformative tool frequency of oscillations of 1,000‒2,000 double step per minutes; a deformative tool feed of 0.08‒12.5 mm/rev. The chromium-plating involved the electrolyte CrO3≈290 g/l and H2SO4≈3 g/l; the electrolyte temperature was 57 °C; duration of chromium was 20 min; a current density was 80 A/dm2, time activation was 20 s. As a result of this, it became possible to obtain the developed surface of the cylinder with high operational characteristics. Our experimental research has confirmed that the machining modes significantly change surface roughness, hardness, and microhardness. This reinforces the surface strengthening of the printing cylinder. In particular, it was found that the integrated technology contributed to a 1.2‒1.6-time increase in hardness compared to the base metal hardness, and a 2.7‒3.3-time increase compared with chromium-plated surface. That makes it possible to argue on that the revealed formation mechanism matches the predefined properties.

Thus, there is reason to assert that it is possible to prolong the service life of printing cylinders, to ensure stable operation of the equipment, to improve the quality of printed products owing to the application of the integrated technology followed by chromium-plating.


Keywords


surface-plastic deformation; chromium-plating; microrelief; surface roughness; durometric surface properties; printing cylinder

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References


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GOST Style Citations


Derefinka I. S. Stan i analiz suchasnykh metodiv pidvyshchennia nadiynosti detalei mashyn poverkhnevym zmitsnenniam // Visn. Nats. un-tu «Lvivska politekhnika». Ser.: Optymizatsiya vyrobnychykh protsesiv i tekhnichnyi kontrol u mashynobuduvanni ta pryladobuduvanni. 2007. Issue 583. P. 18–24.

Kaplun V. H., Kaplun P. V., Shalapko Yu. I. Kompleksni tekhnolohiyi zmitsnennia poverkhni detalei mashyn // Visnyk dvyhunobuduvannia. 2007. Issue 2. P. 132–135.

Dudnikov A., Belovod A., Kelemesh A. Ensuring the quality of the surface layer of parts in the processing of surface plastic deformation // Technology audit and production reserves. 2012. Vol. 1, Issue 1 (3). P. 22–25. doi: https://doi.org/10.15587/2312-8372.2012.4871 

Effect of cold working and sandblasting on the microhardness, tensile strength and corrosion resistance of AISI 316L stainless steel / Suyitno, Arifvianto B., Widodo T. D., Mahardika M., Dewo P., Salim U. A. // International Journal of Minerals, Metallurgy, and Materials. 2012. Vol. 19, Issue 12. P. 1093–1099. doi: https://doi.org/10.1007/s12613-012-0676-1 

Khmiliarchuk O. I. Kombinovani sposoby poverkhnevoho plastychnoho deformuvannia detalei polihrafichnoho obladnannia // Tekhnolohiya i tekhnika drukarstva. 2006. Issue 3. P. 74–80.

Lototska O. I. Suchasni finishni metody pidvyshchennia ekspluatatsiynykh vlastyvostei detalei polihrafichnykh mashyn poverkhnevym plastychnym deformuvanniam i khromuvanniam // Tekhnolohiya i tekhnika drukarstva. 2010. Issue 2. P. 44–50.

Analiz pokrytiy tsilindrov listovyh ofsetnyh pechatnyh mashin / Neskhozievskiy A. V., Kirichok P. A., Zigulya S. N., Lototskaya O. I. // Vestnik Sankt-Peterburgskogo gosudarstvennogo universiteta tekhnologii i dizayna. 2014. Issue 3. P. 54–58.

Pidvyshchennia pratsezdatnosti vuzliv tertia polihrafichnykh mashyn / Vitsiuk Yu. Yu., Roik T. A., Havrysh A. P., Melnyk O. O. // Tekhnolohiya i tekhnika drukarstva. 2010. Issue 2. P. 4–9.

Dan'ko K. A., Zorik I. V. Analiz sostoyaniya problemy povysheniya zhiznennogo tsikla detaley aviatsionnyh dvigateley tekhnologicheskimi metodami // Aviatsionno-kosmicheskaya tekhnika i tekhnologiya. 2010. Issue 4 (71). P. 47–53.

Ezhelev A. V., Bobrowski I. N., Lukyanov A. A. Analysis of processing ways by superficial and plastic deformation // Fundamental research. 2012. Issue 6. P. 642–646. URL: http://www.fundamental-research.ru/ru/article/view?id=30091

Neskhozievskyi A. V. Tekhnolohichne zabezpechennia vidnovlennia detalei polihrafichnoho obladnannia // Drukarstvo molode: dop. XI Mizhnar. nauk.-tekhn. konf. stud. i asp. Kyiv, 2011. P. 67–68.

Kyrychok P. O., Lototska O. I. Eksperymentalni doslidzhennia heometrychnykh parametriv tsylindrychnykh detalei polihrafichnykh mashyn pry kompleksnii obrobtsi // Tekhnolohiya i tekhnika drukarstva. 2011. Issue 3. P. 4–12.

Lototska O. I. Pidvyshchennia ekspluatatsiynykh vlastyvostei detalei polihrafichnykh mashyn // Tekhnolohiya i tekhnika drukarstva. 2008. Issue 3-4. P. 16–20.

Shreyas P., Trishul M. A. Overview of research on Surface Mechanical Attrition Treatment (SMAT) // IARJSET. 2014. P. 205–207. doi: https://doi.org/10.17148/iarjset.2014.1403 

Kyrychok P. O., Khmiliarchuk O. I. Eksperymentalni doslidzhennia protsesiv ozdobliuvalno-zmitsniuiuchoi obrobky // Tekhnolohiya i tekhnika drukarstva. 2009. Issue 4. P. 4–15.

Wang Z. B., Lu J., Lu K. Wear and corrosion properties of a low carbon steel processed by means of SMAT followed by lower temperature chromizing treatment // Surface and Coatings Technology. 2006. Vol. 201, Issue 6. P. 2796–2801. doi: https://doi.org/10.1016/j.surfcoat.2006.05.019 

Lee J.-W., Duh J.-G. Evaluation of microstructures and mechanical properties of chromized steels with different carbon contents // Surface and Coatings Technology. 2004. Vol. 177-178. P. 525–531. doi: https://doi.org/10.1016/j.surfcoat.2003.08.031 

Bogoduhov S. I., Grebenyuk V. F., Proskurin A. D. Obrabotka uprochnennyh poverhnostey v mashinostroitel'nom i remontnom proizvodstve: ucheb. pos. Moscow: Mashinostroenie, 2005. 230 p.

Moroz S., Ptashenchuk V. Research micro-geometry parameters workpiece surface after firming-smoothing operations // Visnyk Khmelnytskoho natsionalnoho universytetu. 2013. Issue 2. P. 62–65.







Copyright (c) 2019 Svetlana Zyhulia, Oksana Barauskiene

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061