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Friction Coefficient

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Published: 30 September 2023
Figure 8.5: Pressure distribution in the roll gap as a function of friction coefficient. Note that as friction increases, the neutral point shifts toward the entry. Without friction, the rolls will slip, and the neutral point shifts completely to the exit [ 12 ]. Reprinted by permission More
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Published: 30 September 2023
Figure 12.26: Friction coefficient measured for hot-dipped aluminized 22MnB5 steel sliding against tool steels. The tool material is AISI H13 (DIN 1.2379) unless indicated [ 227 , 273 , 274 , 284 – 286 ]. More
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Published: 01 December 2003
Fig. 17 Specific wear rate and friction coefficient of unidirectional composites (see Table 4 ) in three orientations (pressure, 1.5 N/mm 2 ; velocity, 0.83 m/s; distance slid, 16 km) More
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Published: 01 August 2012
Fig. 7.13 Evolution of friction coefficient, μ, with different tool temperature, maintaining punch at room temperature for 22MnB5. Sheet thickness t 0 = 1.75 mm (0.069 in.); austenitization temperature T γ = 950 °C (1740 °F); austenitization time t γ = 5 min; punch velocity V punch More
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Published: 01 August 2012
Fig. 7.14 Friction coefficient, μ, as function of blank temperature in contact area at die radius at moment of maximum drawing force for 22MnB5. Sheet thickness t 0 = 1.75 mm (0.069 in.); austenitization temperature T γ = 950 °C (1740 °F); austenitization time t γ = 5 min; punch More
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Published: 30 April 2021
Fig. 3.15 The trend for friction coefficient measured for many metal-to-metal couples in the ASTM G98 galling test. The coefficient of friction reduces when gross plastic deformation of the rubbing surfaces takes place. More
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Published: 30 April 2021
Fig. 3.20 Friction coefficient trends observed over 30 years of laboratory testing of many different tribocouples More
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Published: 01 August 2012
Fig. 7.11 Effect of temperature on mean friction coefficients under dry conditions. Source: Ref 7.10 More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... Abstract This chapter discusses the effect of friction in the context of design. It explains how friction coefficients are determined and how they are used to make sizing and selection decisions. It covers practical issues associated with rolling friction, the use of lubricants...
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Published: 30 September 2023
Figure 8.18: Effect of roll diameter on coefficient of friction measured in rolling of 0.4-mm-thick aluminum strip with a light mineral oil. More
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Published: 30 September 2023
Figure 9.7: Normal pressure and coefficient of friction determined by photoelastic analysis. More
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Published: 30 September 2023
Figure 9.30: Effect of die pressure on coefficient of friction in drawing of 0.53%C steel wire. (a) Rapeseed oil; (b) mineral oil. More
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Published: 30 September 2023
Figure 11.9: Calibration curves for extracting (a) coefficient of friction and (b) friction factor. Reprinted by permission of Pearson Education, Inc. More
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Published: 30 September 2023
Figure 11.26: Coefficient of friction measured in low- and high-speed compression of 18-8 stainless steel to 30% reduction in height. More
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Published: 30 September 2023
Figure 11.30: Shear stress and coefficient of friction measured in upsetting of aluminum with various lubricants. A - Dry; B - Oleic acid in mineral oil, abraded surface; C - same as B, but etched; D - lauric acid in mineral oil, etched; E - mineral oil, etched; F-MoS 2 ; G - soap. More
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Published: 30 September 2023
Figure 11.31: Coefficient of friction in upsetting of (a) low-carbon steel and (b) copper with various lubricants. A - mineral oil; B - lauric acid in mineral oil; C - oleic acid in mineral oil; D - same as C, but oxidized surface. More
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Published: 30 September 2023
Figure 13.7: Apparent mean coefficient of friction in cutting of free-machining steel (HSS tool; dry; f = 0.15 mm). More
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Published: 01 June 2016
Fig. 7.12 (a) Coefficient of friction and (b) wear rate of Al5056 and Al5056-SiC coatings. Source: Ref 7.54 More
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Published: 01 December 2003
Fig. 2 Inclined plane used to determine the static coefficient of friction (μ s ). (a) Tilting a flat surface through the smallest angle, θ, needed to initiate movement of the body down the plane. (b) Relationship of the friction angle to the principal applied forces. F , friction force; N More
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Published: 01 March 2001
Fig. 1 Inclined plane used to determine coefficient of static friction, μ s . (a) Tilting flat surface through smallest angle, θ, needed to initiate movement of the body down the plane. (b) Relation of the friction angle to the principal applied forces More