Improving the quality of technological surfaces of machines of composite coatings

• Autorzy: Dyl T. C. , Starosta R.

Identyfikatory

DOI

10.5604/12314005.1134122

• Języki publikacji: EN

Abstrakty

EN

Nickel matrix coatings were sprayed by the Casto-Dyn 8000 torch on a steel substrate, and then subjected to straight turning. Determining of the optimum geometry of indexing is now synonymous with the selection of the optimum shape and dimensions of the insert and of an appropriate holder. According to cutting board, it was selected square, triangular, trigon inserts, made of carbide and of cubic boron nitride (borazon). Machining of nickel-based coatings was carried out for the cutting speed vc = 214 m/min in the case of treatment with borazon inserts, vc = 107 m/min in case of plates treated with tungsten carbide cutting, using the feed f =0.06 mm/rev and the depth of cut ap = 0.3 mm. Metal cutting the surface of steel samples coated with a composite coating containing 15% Al2O3 based on nickel, conducted for the cutting speed vc = 157 m/min when machining with borazon inserts and for vc = 83 m/min inserts with tungsten carbide for feed f = 0.06 mm/rev and depth of cut ap = 0.3 mm. Highly precise finishing of flame spraying composite and alloy coatings was carried out using turning by tool with borazon inserts. Flank (VB) and attack (KB) of turning tool wear while maintaining a constant length of spiral cutting (LSC) were determined. The effect of the shape and grade of inserts upon the geometric structure of the composite coatings and is considered in the paper. The article can determine the shape and grade of inserts is necessary to obtain sufficient quality of the shaft of centrifugal pumps with a composite coating.

Słowa kluczowe

EN

composite coatings; flame spraying; surface finishing; technological quality

• 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: 2014
• Tom: Vol. 21, No. 1
• Strony: 75--82
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Dyl T. C.

• Gdynia Maritime University Faculty of Marine Engineering Department of Marine Materials and Technology Morska Street 81-87, 81-225 Gdynia, Poland

autor

Starosta R.

• Gdynia Maritime University Faculty of Marine Engineering Department of Marine Materials and Technology Morska Street 81-87, 81-225 Gdynia, Poland

Bibliografia

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