Investigation of Tribological Properties of Carbide Coatings Deposited by Electrospark at Piezoelectric Tribocontact
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PADGURSKAS, Juozas; ZUNDA, A.; RUKUIZA, Raimundas; ANDRIUSIS, A.; MIKHAILOV, Valentin; METRIKAITE, D.. Investigation of Tribological Properties of Carbide Coatings Deposited by Electrospark at Piezoelectric Tribocontact. In: Электронная обработка материалов. 2015, nr. 2(51), pp. 24-30. ISSN 0013-5739.
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Электронная обработка материалов
Numărul 2(51) / 2015 / ISSN 0013-5739 /ISSNe 2345-1718

Investigation of Tribological Properties of Carbide Coatings Deposited by Electrospark at Piezoelectric Tribocontact

CZU: 621.983.073.048.7:621.373.826.11
Pag. 24-30

Padgurskas Juozas1, Zunda A.1, Rukuiza Raimundas1, Andriusis A.1, Mikhailov Valentin2, Metrikaite D.1
 
1 Institute of Power and Transport Machinery Engineering, Aleksandras Stulginskis University,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 16 ianuarie 2016


Rezumat

Investigations presented in this paper were carried out using an originally designed rotary piezoelectric motor of a standing wave tribotester. Test conditions, such as the normal force value in the friction pair, the rotor stop torque value, and the test duration can be programmed and changed in a desirable mode. The rotating speed, covered distance and loading torque of a piezo actuator were measured. Two different coatings (WC-Co8 and TiC15-Co6) were tested as the rotor friction surface and the wear of friction pairs (rotor, counter body) was evaluated after the tests. Investigations reveal an incidental advantage of output parameters of the piezo actuator with the TiC15-Co6 coating on the friction pair. Besides, high hardness of carbide surfaces requires paying more attention to the wear resistance of the frictional material of the counter body.

В работе представлены результаты исследований трибологических характеристик электроискровых карбидных покрытий (WC-Co8, TiC15-Co6) на испытательном стенде оригинальной конструкции, в котором моделировалась работа пьезоэлектрического двигателя стоячей волны. Этот стенд позволял управлять нагрузкой в пьезоконтакте, нагрузкой пьезодвигателя (крутящим моментом), продолжительностью испытаний, а также регистрировать скорость вращения и путь ротора. Из испытанных двух типов карбидных покрытий более высокие трибологические свойства показали покрытия TiC15-Co6.

Cuvinte-cheie
piezo actuator, friction pair, WC-Co8, TiC15-Co6, rotating speed,

coating, Wear