Surface hardening of cutting elements agricultural machinery vibro arc plasma

Sharifullin, S. N.; Adigamov, Nail; Adigamov, N N; Solovev, R. Yu.; Arakcheeva, K S

doi:10.1088/1742-6596/669/1/012049

Cited by 14 publications

(3 citation statements)

References 8 publications

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“…For the CVAH we used installation VGDU-2, developed and manufactured by Federal State Budgetary Scientific Institution, Federal National Agricultural Center of All-Russian Engineering Institute (Moscow). The installation contains the inverter thyristor current source of 200…250 А, operating console and vibrator with embodied in it carbon electrode of diameter 6…8 mm [9,11,14,15]. During installation work between carbon electrode and hardened surface with the paste deposited layer, electric arc was ignited, as the result the composite coating was formed from the paste elements on the hardened surface.…”

Section: Methodsmentioning

confidence: 99%

“…The Carbo Vibro Arc Hardening method (CVAH) is a modern method of formation of the composite metal ceramic coatings, which to a large extent is deprived from the above mentioned disadvantages and which permits to increase sufficiently the wear resistance of the working elements cutting surfaces [7][8][9][10][11][12]. At the CVAH the metal ceramic paste, containing the metal matrix, hardening ceramic components and the material activating the arcing process (cryolite), is applied on the harden cutting surface.…”

Section: Introductionmentioning

confidence: 99%

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Technology of Reconditioning with Hardening of Working Elements of Construction and Road Machines by Composite Coatings

Kolomeichenko

Titov

2021

MATEC Web Conf.

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The article gives the description of the developed technology of increasing wear resistance of working elements of national and foreign constructional and road machines by composite coatings, obtained on working elements cutting surfaces applying Carbo Vibro Arc Hardening method (CVAH). The technology includes the following basic operations: cleaning and fault detection of the working element, removal of the worn cutting element, compensating element production, its sharpening and welding, preparation of metal and ceramic paste for Carbo Vibro Arc Hardening method (CVAH) and its application, Carbo Vibro Arc Hardening method (CVAH) of the harden cutting surface of the working element. When hardening new working elements technological process operations connected with production and welding the compensating element is not performed. According to the carried out results the rational composition and component concentration of the paste that provides significant increase of working elements wear resistance.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Technology of Reconditioning with Hardening of Working Elements of Construction and Road Machines by Composite Coatings

Kolomeichenko

Titov

2021

MATEC Web Conf.

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“…To increase the wear resistance of machine parts it is promising to form metal-ceramic coatings on their working surfaces [1][2][3][4][5][6][7]. One of the modern methods of their obtaining is carbo-vibro-arc hardening (CVAH).…”

Section: Introductionmentioning

confidence: 99%

Theoretical background for the creation of wear-resistant coatings at the carbo-vibro-arc hardening

Kolomeichenko

Titov

2021

MATEC Web Conf.

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The paper presents the results of theoretical studies that allow predicting the formation of wear-resistant coatings on the working surfaces of machine parts by the method of carbo-vibro-arc hardening (CVAH). Analytical regularities of electric field intensity formation by oscillating carbon electrode during carbo-vibro-arc hardening (CVAH) have been established; the maximum layer thickness of multicomponent paste, 2.1...2.5 mm, which ensures stable electric arc combustion during CVAH, has been theoretically substantiated. With the increase of amplitude and frequency of oscillations of the carbon electrode, the electric field strength at CVAH decreases nonlinearly, but the thickness of the hardened layer of the multicomponent paste has the greatest influence on it. As a result, ceramic-metal coatings of high quality and integrity are formed on the hardened surfaces of parts. The testing of the obtained theoretical regularities has confirmed their reliability.

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