SCUFFING PROPAGATION OF HEAVILY-LOADED LUBRICATED FRICTION JOINTS WITH WC/C COATED PARTS

The aim of this paper was to describe the mechanisms of the estruction of heavily loaded friction pair elements coated with low – friction WC/C coating. The investigations were performed for low friction coatings WC/C (a...

TRIBOLOGICAL PROPERTIES OF HVOF SPRAYED TUNGSTEN CARBIDE COATINGS MODYFIED BY THE EDM PROCESS

Wear and abrasion are still up-to-date problems in all branches of industry. Although modern technologies permit considerable improvement in the properties of the outer layer, they need to be constantly modified or new s...

Określanie intensywności zużycia powłok niskotarciowych metodą ball-cratering

WPŁYW UTWARDZONYCH WARSTW NANOKRYSTALICZNYCH NA ODPORNOŚĆ NA ZUŻYCIE ŻELIWA PODCZAS TARCIA W ŚRODKU OLEJOWO-ŚCIERNYM

Utwardzanie tarciowe stanowi metodę umacniania z użyciem wysoko skoncentrowanych źródeł energii. W strefie styku narzędzia i powierzchni obrabianej warstwa wierzchnia jest podgrzewana z dużą prędkością (105–106 K/s) do t...

THE CHANGE OF FRICTION AND LOAD- CARRYING CAPACITY OF THE JOURNAL BEARING WITH THE CONSIDERATION OF THE OIL AGEING

This paper presents numerical calculations of the hydrodynamic pressure distribution, carrying capacity, and friction coefficient in the gap of a journal bearing. The analysed bearing is lubricated using motor oil. In th...