1-20 of 547 Search Results for

boundary lubrication

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006398
EISBN: 978-1-62708-192-4
..., and wear mitigation of sliding bearings. The lubrication of bearings includes thick-film lubrication, thin-film lubrication, and boundary lubrication. The article concludes with a discussion on the effects of material elasticity on the lubrication of bearings. References References 1. Kingsbury...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005138
EISBN: 978-1-62708-186-3
... fillers, soluble oils, and boundary lubricants are reviewed. The article also analyzes the applications of lubricants in wire forming. Surface Finish Properties Speed of Forming Tools Springback Effect of Material Condition Rolling of Wire in a Turks Head Machine Spring Coiling...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006401
EISBN: 978-1-62708-192-4
... ) 2 μ N P W max Maximum load e  Eccentricity ratio:  e = [ 1 − ( h 0 c ) ] Common types of boundary lubrication additives and functions in lubricating oil formulations Table 3 Common types of boundary lubrication additives and functions...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006427
EISBN: 978-1-62708-192-4
... calculations showing effects of oil viscosity on piston-skirt/liner friction, illustrating dependence on degree of mixed/boundary lubrication: (a) Significant mixed-boundary lubrication; (b) moderate mixed-boundary lubrication. Source: Ref 20 Fig. 9 Computations showing effects of adequate upstream...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006365
EISBN: 978-1-62708-192-4
... of performances of textured surfaces in boundary-lubricated point contact. The circles represent the elastic contact area related to each configuration. Source: Ref 34 . Reprinted with permission from U. Pettersson Medin Fig. 17 Effect of texturing or dimple area density on coefficient of friction. AJM...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006354
EISBN: 978-1-62708-192-4
...: Ref 1 Fig. 17 Gear life as a function of specific film thickness (λ) in the boundary lubrication (BL) regime, the mixed lubrication (ML) regime, and in the elastohydrodynamic lubrication (EHL) regime Abstract Abstract This article is concerned with gear tooth failures influenced...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006403
EISBN: 978-1-62708-192-4
... surface area times the wear length. It can also be estimated from reclaimed components. It also is very important to relate the sliding distance only to sliding (not rolling distances) and to a specific friction regime, for example, dry, mixed/boundary lubrication. Hydrodynamic lubrication must...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006370
EISBN: 978-1-62708-192-4
... protection against adhesive wear and low friction up to 800 °C (1470 °F). Chromium and chromium-containing stainless steels will form chromium chloride, CrCl 3 , which provides effective boundary lubrication up to approximately 700 °C (1290 °F). Sulfur and phosphorus are common additives for iron...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006409
EISBN: 978-1-62708-192-4
..., only a fraction of the total heat generation is induced by the asperity-contacts, whereas the remaining fraction is determined by the heat generated due to viscous friction within the lubricant film. Depending on the lubricant regime, i.e., boundary, mixed, or full hydrodynamic lubrication...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006369
EISBN: 978-1-62708-192-4
... G.L. , Atomic-Scale Structure and Composition of Tungsten Carbide Reinforced Diamondlike Carbon Films , Appl. Phys. Lett ., Vol 93 ( No. 15 ), 2008 , p 1909 33. Miyake S. , Saito T. , Yasuda Y. , Okamoto Y. , and Kano M. , Improvement of Boundary Lubrication...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
... before using the mechanical parts in real service conditions. The best way to reduce sliding wear is to adopt a suitable lubrication, if possible. If the Λ-factor is high (typically in excess of 1), wear is negligible, because the asperities do not touch each other during sliding. In boundary...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006371
EISBN: 978-1-62708-192-4
.... , Fundamentals of Fluid Film Lubrication , 2nd ed. , Marcel Dekker, Inc. , 2004 10.1201/9780203021187 12. Rana A.S. and Sayles R.S. , An Experimental Study on the Friction Behaviour of Aircraft Hydraulic Actuator Elastomeric Reciprocating Seals , Life Cycle Tribology: 31st Leeds-Lyon...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006422
EISBN: 978-1-62708-192-4
... surfaces in rolling of aluminum under different lubrication regimes: (a) work roll surface finish reproduced under boundary lubrication, (b) smearing due to lubricant breakdown, (c) surface roughening under hydrodynamic lubrication. Source: Ref 16 Fig. 4 Geometry of a roll pass and associated...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003326
EISBN: 978-1-62708-176-4
... to the Sommerfeld number that ranges from 0.001 to over 1.0, going from left to right in Fig. 1 . The lubricant condition goes from boundary (minimal film) to mixed- to full-film lubrication, also going left to right in Fig. 1 , indicating how the actual oil film relates to μ. Fig. 1 Stribeck curve...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006424
EISBN: 978-1-62708-192-4
..., showing how the coefficient of friction varies with a lubricity parameter including lubricant viscosity (η) interface speed ( V ), and die pressure ( P ) through boundary, mixed, and hydrodynamic lubrication conditions. Adapted from Ref 32 Abstract Abstract Both hot and cold forgings are batch...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... Inorganic Fillers Soluble Oils Boundary Lubricants Operation Backward Spinning Forward Spinning Powered Rotary Benders Hydraulic Bending Presses Roll Benders When a mandrel is used, both the mandrel and the interior of the tube are heavily coated with a thick lubricant...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005417
EISBN: 978-1-62708-196-2
... of the Transfer Layer in Boundary Lubrication , J. Lub. Technol. (Trans. ASME), Vol 104 , 1982 , p 545 – 551 5. Schey J.A. , Tribology in Metalworking, Friction, Lubrication and Wear , The American Society for Metals , 1983 6. Roberts C.D. , Mechanical Principles of Rolling , Iron...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006426
EISBN: 978-1-62708-192-4
... from the friction of roughnesses in case of mixed or boundary lubrication. Surface hardening of steels is employed by various methods such as carburizing, carbonitriding, nitriding, and boriding. Some bearing types, principally tapered roller bearings, are fabricated from case-hardening steels...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.9781627081924
EISBN: 978-1-62708-192-4
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006393
EISBN: 978-1-62708-192-4
... to describe the lubrication condition. The nondimensional lubricant film thickness is commonly referred to as the lambda ratio, or Λ. These conditions are typically classified as boundary, mixed, or full-film lubrication. Full-film lubrication is used to describe the condition whereby the film...