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Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... Abstract This chapter covers the tribological properties of different types of oil, greases, solid lubricants, and metalworking and traction fluids. It explains how lubricants are made, how they work, and how they are applied and tested. It also discusses the fundamentals of lubrication...
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...
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Published: 01 August 2012
Fig. 7.4 Comparison of stamping processes with (a) wet lubricants and (b) dry-film lubricants. Source: Ref 7.11 More
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Published: 01 August 2012
Fig. 7.5 Various Tribotests used for evaluating stamping lubricants; Region 1, flange deformation; Region 2, bending and undbending; Region 3, bending and stretching; Region 4, large friction with little deformation. More
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Published: 01 August 2012
Fig. 7.10 Load-stroke curves obtained for various lubricants (Lub) tested at a high blank holder force (BHF). Source: Ref 7.19 More
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Published: 01 August 2012
Fig. 7.14 Load-stroke curves obtained for various lubricants (Lub) tested at 100 °C More
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Published: 30 April 2021
Fig. 3.12 Types of lubricants More
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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
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Published: 30 April 2021
Fig. 14.1 Types of lubricants More
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Published: 30 April 2021
Fig. 14.3 Types of solid lubricants. DLCs, diamond-like carbons; PE, polyethylene; PVDC, polyvinylidene chloride More
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Published: 01 September 2005
Fig. 5 Effect of internal lubricants on the sliding wear (acetal against steel) of 27 tooth, 2.12 module (12 pitch), involute thermoplastic spur gears. Initial contact stress = 42 MPa 9 (6 ksi). Pitchline velocity = 5.6 m/s (18.4 ft/s). Solid lines show median of measured wear range. Dotted More
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Published: 30 September 2023
Figure 8.7: Methods of evaluating lubricants from roll force and rolled gage, recognizing that improved lubrication leads to less friction. (a) Direct comparison of measured rolling force; (b) a lower roll force leads to less deflection of the rolls and results in a thinner strip for the same More
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Published: 30 September 2023
Figure 8.34: Efficiencies of lubricants in cold rolling of titanium at 10% reduction. More
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Published: 30 September 2023
Figure 9.11: Shapes used in evaluation of lubricants for drawing of shaped wire. More
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Published: 30 September 2023
Figure 11.16: Common test methods for evaluating lubricants and friction in hot forging. (a) Spike test; (b) double cup extrusion test; (c) backward can extrusion; (d) sliding-upsetting test; (e) upsetting-sliding test; (f) T-shaped compression test. More
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Published: 30 September 2023
Figure 11.21: Simplified forging processes used in the study of forging lubricants. More
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Published: 30 September 2023
Figure 11.33: Friction in hot upsetting of steel rings with dry lubricants. (a) Contact time of 18 ms, ϵ = 0.2; (b) contact time of 29 ms, ϵ = 0.5. More
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Published: 30 September 2023
Figure 13.35: Effects of lubricants/coolants on chip-thickness ratio. More
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Published: 30 September 2023
Figure 13.39: Effects of lubricants on forces measured in cutting of mild steel. More
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Published: 30 September 2023
Figure 5.5: Modeling of lubricants in concentrated contacts. (a) Viscous lubricant (low pressure and Deborah number); (b) elastic (high Deborah number); (c) elastic-perfectly plastic solid (high pressure). More