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Base lubricants for green stamping : the effects of their structure and viscosity on tribological performance
ID
Polajnar, Marko
(
Avtor
),
ID
Čoga, Lucija
(
Avtor
),
ID
Kalin, Mitjan
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(2,94 MB)
MD5: 92F01F8BDE6268C7AB7627D07D7E1FC6
URL - Izvorni URL, za dostop obiščite
https://link.springer.com/article/10.1007/s40544-022-0706-6
Galerija slik
Izvleček
The requirements for green and sustainable manufacturing mean that stamping lubricants must be continuously re-evaluated and re-designed. In this investigation, the tribological performance of four base oils with different chemical structures (paraffinic and naphthenic) and viscosities (2 and 20 cSt), as well as water, was evaluated for the stamping of steel sheets and compared with a non-lubricated contact. Most lubricants reduce the coefficient of friction and maintain a similar wear coefficient for steel sheets as in dry contacts. Low-viscosity (LV) naphthenic oil performs very like both high-viscosity (HV) oils. A surprising exception is the LV paraffinic oil, with several-times-higher friction and wear compared to dry contact. This is due to the excellent wetting-spreading and very low cohesion forces that enable oil to escape from extremely thin-film contacts because the viscosity is so low, leading to lubricant starvation. In contrast, HV oils provide a sufficiently thick lubricating film, while strong cohesive forces help in the film’s strength, lessening wear, and reducing friction. In thin-film lubrication with LV oils, such as when stamping, it is thus extremely important that the lubricant’s wetting behaviour and viscosity are sufficient to provide enough film in the contact and prevent starvation, thus ensuring lower friction, less wear, and a longer lifetime of the contact.
Jezik:
Angleški jezik
Ključne besede:
stamping
,
viscosity
,
water
,
paraffinic oil
,
naphthenic oil
,
wetting
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2023
Št. strani:
Str. 1741–1754
Številčenje:
Vol. 11, iss. 9
PID:
20.500.12556/RUL-152277
UDK:
539.92
ISSN pri članku:
2223-7690
DOI:
10.1007/s40544-022-0706-6
COBISS.SI-ID:
150831619
Datum objave v RUL:
16.11.2023
Število ogledov:
693
Število prenosov:
17
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Objavi na:
Gradivo je del revije
Naslov:
Friction
Skrajšan naslov:
Frict.
Založnik:
Springer
ISSN:
2223-7704
COBISS.SI-ID:
525782809
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
štancanje
,
viskoznost
,
voda
,
parafinsko olje
,
naftensko olje
,
omočljivost
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
L2-9244
Naslov:
Okolju prijazna zelena tehnologija mazanja na osnovi nano-inženiringa za trajnostno visokozmogljivo štancanje
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0231
Naslov:
Tribologija
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