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Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390100
EISBN: 978-1-62708-459-8
... lubricants (emulsions, synthetics, solutions); and a wide range of coatings and carriers. It also discusses solid-film lubricants (oxide films, polymer films, layer-lattice compounds) and environmental and safety concerns. aqueous lubricants coatings compounded lubricants greases metalworking...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390241
EISBN: 978-1-62708-459-8
..., heat, strain, and distortion for different tooling configurations and geometries. It explains how to select and apply lubricants based on drawing speed, die design, and other factors and how to maintain sufficient film thickness for hydrodynamic, mixed, and solid-film lubrication conditions. It also...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300335
EISBN: 978-1-62708-323-2
... or lubricate surfaces, including solid film, chemical conversion, and vacuum coatings, surface oiling and texturing, and lubricating platings. It compares and contrasts methods based on thickness and depth and their relative effect on friction, erosion, and wear. coatings friction and wear properties...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390064
EISBN: 978-1-62708-459-8
... modeling of EHD films must take all these possibilities into account, including softening of the solid through heating as well as the influence of strain rate. Figure 5.5: Modeling of lubricants in concentrated contacts. (a) Viscous lubricant (low pressure and Deborah number); (b) elastic (high...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... and friction control, the relationship between viscosity and breakaway friction, and the factors that affect load-carrying capacity and service life. friction control industrial greases liquid lubricants solid-film lubricants DUNCAN DOWSON, a distinguished professor at the University...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
... are forced to move relative to each other. It is closely associated with any wear mechanisms that may be operating and with any lubricant and/or surface films that may be present, as well as the surface topographies. The heat generated as a result of the dissipation of frictional interaction may affect...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... in some way with lubricants; this section will also concentrate on the friction aspects of lubricated tribosystems. Fig. 3.12 Types of lubricants Solid film lubricants are just that—a film of some solid substance is deposited on a sliding or rolling surface in order to reduce friction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390284
EISBN: 978-1-62708-459-8
... forms, and this angle increases with reduction ratio. It is essential, though, that no trace of a lubricant or contaminant film be present on the billet surface, because otherwise the sticking condition will be locally disturbed and the lubricant will be washed in below the product surface. This can...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... (lubricant); they could be rolling in a powder or other solid particles (which is the case for tires on roadways); they can have films or treatments separating the rolling elements. Fig. 2.11 Rolling a ball on a flat produces pure rolling at a point. Rolling a ball in an “almost” conforming raceway...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390325
EISBN: 978-1-62708-459-8
... punch, a lubricant reduces pressure, provided that it does not thin excessively. A well-adhering solid lubricant is effective, but breakdown of a liquid film may allow pressures to rise above their unlubricated values. 11.3 Impression-Die Forging Impression die forging, also called closed die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... by asperities lubricated by surface films of molecularly thin liquids, gases, or solids; this condition is known as boundary lubrication. The exclusive use of solid lubricants is called solid lubrication. For highly loaded contacts, lubricant pressure can cause elastic deformation of the surfaces...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... Abstract This chapter covers common types of erosion, including droplet, slurry, cavitation, liquid impingement, gas flow, and solid particle erosion, and major types of wear, including abrasive, adhesive, lubricated, rolling, and impact wear. It also covers special cases such as galling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420027
EISBN: 978-1-62708-452-9
... be easy to understand the reasons for it not to function under certain conditions. Lubrication is accomplished on gear teeth by the formation of two types of oil films: the reaction film, also known as the “boundary lubricant,” produced by physical absorption and/or chemical reaction to form a desired...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390389
EISBN: 978-1-62708-459-8
... it was TiC that eliminated wear while TiN only reduced it. Lubrication Various lubricants are effective in reducing wear, especially adhesive wear. Liquid lubricants form a squeeze film when the punch contacts the sheet. Most of the film squeezes out, but in doing so it also lubricates the end face...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
... a few selected forming operations, such as hot rolling of plates or slabs and nonlubricated extrusion of aluminum alloys. Boundary lubrication ( Fig. 7.2 ) is defined as a condition where the solid surfaces are so close together that surface interaction between single or multimolecular films...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390019
EISBN: 978-1-62708-459-8
... Plastic deformation in the presence of a lubricant film results in surface roughening or smoothening, and irrespective of whether the lubricant is liquid, semisolid, or solid. Roughening involves the following: When the liquid film is thick enough to ensure complete die-workpiece separation (see...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940451
EISBN: 978-1-62708-302-7
... to Salt Spray (Fog) D 2251, Test Method for Metal Corrosion by Halogenated Organic Solvents and Their Admixtures D 2570, Method for Simulated Service Corrosion Testing of Engine Coolants D 2649, Test Method for Corrosion Characteristics of Solid Film Lubricants 454 / Fundamentals of Electrochemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... lubricant cannot flow through the interface as it can where there is continual sliding motion. Certain greases, solid film lubricants (e.g., molybdenum disulfide), and oils are intended to reduce or delay fretting, as is discussed in Ref 1 . Prevent fracture: Fracture resulting from fretting wear may...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780259
EISBN: 978-1-62708-281-5
... for Solid Friction , Friction, Lubrication, and Wear Technology , Vol 18 , ASM Handbook , Blau P.J. , Ed., ASM International , 1992 , p 45 – 58 19. “ Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting, ” D 1894-90, 1992 Annual Book of ASTM...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390145
EISBN: 978-1-62708-459-8
... from one process to another. film thickness measurements friction force measurements lubricant evaluation simulation testing surface characterization wear testing In order for tribological processes to be understood and quantified, a great variety of measurements must be made. Some...