Influence of parameters of grit blasting conducted Dymet® device 412K to obtain roughness

• Autorzy: Szyfelbain M. , Charchalis A. , Starosta M.

Identyfikatory

DOI

10.5604/12314005.1217294

• Języki publikacji: EN

Abstrakty

EN

There are several fundamental steps for the technological preparation, which are required to optimize the thermal spray coatings. In order to ensure proper bonding of the coating, important is properly preparation of substrate. The surface of the substrate has to be clean and should have a suitable roughness after previously performed treatment. Knowledge about the effects of process parameters allows designing the coatings obtained with an optimal adherence. Only when all the components of the spraying coating process are used correctly there is possible properly design the technology. The article describes the impact of technological parameters of grit blasting to obtain the roughness of the steel substrate (steel S185) to the process of metallic coatings by cold gas dynamic spraying. Research was carried out by using the Dymet® 412K appliance, designed for applying metal coatings and substrate surface cleaning. Grit blasting is a mechanical method of surface preparation of metal parts. It allows obtaining a high degree of surface cleanliness and a determined roughness. The authors took into account parameters such as operational pressure, spray angle (incidence) of abrasive grit blasting in the axis of the stream and feed rate of used abrasive particles (Al2O3) passed to the nozzle of spray gun. Carried out the multiple regression analysis of the roughness parameters results. It revealed the existence of certain influences and changes of process parameters, which affect on the surface quality. Carried out calculations by using a multiple regression showed that the greatest correlation is between the required roughness and the feed rate of used abrasive particles. The studied roughness was described by the parameters: Ra, Rz, Rt and RSm. Stepped growth (from 0.1 to 0.8 g/s) of abrasive particles feed rate caused a decline of all of the roughness parameters. It has been found that the values of the roughness in the least depend on the operational pressure.

Słowa kluczowe

EN

roughness; blasting; Dymet® 412K gun; alumina

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 4
• Strony: 521--526
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Szyfelbain M.

• Gdynia Maritime University Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax [phone]

autor

Charchalis A.

• Gdynia Maritime University Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax [phone]

autor

Starosta M.

• Gdynia Maritime University Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax [phone]

Bibliografia

• [1] Ambroziak, A., Maev, R., Leshchynsky, V., Kocimski, J., Natryskiwanie powłok nisko-ciśnieniową metodą gazodynamiczną (cold spray), Przegląd Spawalnictwa, pp. 27-31, 5, 2009.
• [2] Charchalis, A., Starosta, R., Effect of finishing on the corrosion properties of flame sprayed Ni-5%Al and Ni-5%Al-Al2O3 coatings, Journal of KONES Powertrain and Transport, Vol. 21, No 4, pp. 29-36, 2014.
• [3] Mohamed, D., Eddine, B. N., Nacer, D., Effect of Substrate Preheating, Roughness and Particles Size on Splat Morphology of Thermal Sprayed Coatings, International Journal of Computational a Experimental Science and Engineering, Vol. 1, No. 1, pp. 16-18, Isparta 2015.
• [4] Morel, S., Powłoki natryskiwane cieplnie, Monografie nr 48, pp. 107-115, Wydawnictwo Politechniki Częstochowskiej, Częstochowa 1997.
• [5] Starosta, R., Effect of burnishing on the contact fatigue of regenerative thermally sprayed coatings, Journal of KONES Powertrain and Transport, Vol. 20, pp 309-315, 2013.
• [6] Starosta, R., Podstawy wytwarzania i obróbki powłok kompozytowych w procesach regeneracji elementów maszyn i urządzeń eksploatowanych w środowisku wody morskiej, Prace naukowe Akademii Morskiej w Gdyni, pp. 13-15, Gdynia 2013.
• [7] Tkaczyk, S., Walczak, K., Balcerowska, B., Ozgowicz, W., Rydarowski H., Szota, J., Powłoki ochronne, Wydawnictwo Politechniki Śląskiej, pp. 37-42, Gliwice 1997.
• [8] Tucker, R. C., Introduction to Coating. Design and Processing, ASM Handbook, Volume 5A, Thermal Spray Technology, pp. 1-6, 2013.
• [9] Yang, K., Liu, M., Zhou, K., Deng, Ch., Recent developments in the research of splat formation process in thermal spraying, Hindwai Publishing Corporation, Journal of Materials, Volume 2013, pp. 2-7, Guangdong, China 2012.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.