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liquid lubricants

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Published: 30 April 2021
Fig. 3.13 Internal friction (relative viscosity) of some liquid lubricants as determined by time (s for seconds) to flow through a fixed hole in the bottom of a standard cup under the same environmental conditions (temperature, etc.) More
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: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390100
EISBN: 978-1-62708-459-8
... Abstract This chapter describes the properties and attributes of various classes of metalworking lubricants, including mineral oils; natural oils, fats, derivatives, and soaps; synthetic fluids (olefins, esters, polyglycols, ionic liquids); compounded lubricants (oils, greases, fats); aqueous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
... of engineering materials and coatings. It also describes the causes and effects of the most common forms of wear, the conditions under which they occur, the role of lubrication, and wear testing methods. friction coefficient lubrication wear wear testing FRICTION, WEAR, AND LUBRICATION are complex...
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
... or, if buckling is of concern, 0.67. (c) It is possible to improve the lubrication condition while still keeping the final d/h ratio small. This can be done by replenishing the lubricant in the course of incremental upsetting, by grooving the end face of the billet to entrap a liquid lubricant ( Fig. 11.4a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
.... Hydrodynamic Conditions Hydrodynamic conditions exist when a thick layer of liquid lubricant is present between the dies and the workpiece. In this case, the friction conditions are governed by the viscosity of the lubricant and by the relative velocity between the die and the workpiece. The viscosities...
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...
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
... be caused by pressure itself in a few substances, but a more likely source of melting is heat, either from friction or from contact with a hot surface, as in glass-lubricated extrusion of metals ( Sec. 10.5.3 ). In the case of glass, the melt phase is essentially a Newtonian fluid, but liquid phases of very...
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...
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
... the benefit of also dramatically increasing die life. Externally cooled double dies have also been used with liquid lubricants. Back tension is developed in the wire by taking a reduction in the first die. Lubrication of this first die is ensured by provision of a short inlet tube. Reductions of up to 55...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
.... Vibration and minute movement still may be present, but the elastomeric material absorbs the motion and prevents metal-to-metal contact. Lubricate the joint. Because the joint is essentially stationary, liquid lubricant cannot flow through the interface as it can where there is continual sliding motion...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... that will see only one lubricant application and then be sealed for life, as in a chain drive on the wheel steering system for a boat. These films are used in electronics and the like where excess lubricant could be a contaminant. Most people are familiar with liquid lubricants since all automobile owners...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
... on themselves or other materials usually produce a high-friction, even stick-slip tribosystem unless friction modifiers are used. Friction modifiers can be anything added to a plastic that is chemically different from the plastic. Most plastics used for tribological applications have solid or liquid lubricants...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... redesign of the joint to include an elastomeric bushing or sleeve may be necessary. Vibration and minute movement still may be present, but the elastomeric material absorbs the motion and prevents metal-to-metal contact. Lubricate the joint: Because the joint is essentially stationary, liquid...
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: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.9781627084598
EISBN: 978-1-62708-459-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... powder processing sheet forming Liquid to Solid Processing Metals usually are cast into molds of sand, another refractory material, or another metal. Steel and iron are cast into sand or refractory molds. Gold, silver, and refractory metals are cast into molds of high-temperature ceramics...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300001
EISBN: 978-1-62708-323-2
... by an international steering committee of wear researchers, and the focus of the conference is on the engineering materials aspects of wear such as: What is rubbing on what? What are the relative wear volumes? What is the mechanism of material removal as opposed to papers on the lubricants? What...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420027
EISBN: 978-1-62708-452-9
..., salt, or mud), anti-freeze compounds, liquid coolant compounds, or even other types of grease or oil added inadvertently. These contaminants will cause corrosion and general deterioration of both the lubricant and the metallic surfaces. Sand and dust particles introduced by atmosphere or water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... bushing or sleeve in a joint. Motion will be absorbed by the elastomeric material, preventing metal-to-metal contact. Lubricate the joint . The problem here is that because the joint is essentially stationary, liquid lubricant cannot flow through the interface (as is the case with continual sliding...