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coefficient of friction

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860049
EISBN: 978-1-62708-338-6
..., the chapter focuses on the determination of various kinds of curvatures that eventually lead to the derivation of (non-) geodesic fiber trajectories according to a predetermined coefficient of friction. It concludes with the analysis of nongeodesics on conical segments, annuli, and cylinders...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... on both plus light oil 0.1 Cd plating on both plus MoS2 0.08 Austenitic stainless steel bolt and nut No lubrication 0.3 Ag plating on both 0.25 Ag plating on both plus light oil 0.1 COF, coefficient of friction Rolling resistance of a golf ball on various rolling surfaces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
...Friction coefficient data for metals sliding on metals and corresponding references and test conditions Table 1 Friction coefficient data for metals sliding on metals and corresponding references and test conditions Metals tested in air at room temperature Material Test geometry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780259
EISBN: 978-1-62708-281-5
... (Reapproved 1990), 1992 Annual Book of ASTM Standards , ASTM 16. “ Standard Guide for Recommended Data Format of Sliding Wear Test Data Suitable for Databases, ” G 118-93, 1995 Annual Book of ASTM Standards , ASTM 17. “ Standard Guide for Measuring and Reporting Friction Coefficients, ” G 115-93...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... at a point. Rolling a ball in an “almost” conforming raceway produces a line of rolling contact. Fig. 2.12 Stribeck curve showing how lubricated tribosystems can have system coefficient of friction (COF) vary with viscosity and operating conditions Fig. 2.13 Leonardo da Vinci’s friction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
..., and lubricant characteristics. The parameters that affect friction and lubrication are schematically shown in Fig. 7.1 . Depending on these parameters, the performance of a lubricant and the coefficient of friction (COF) vary. Fig. 7.1 Factors that affect friction and lubrication in sheet metal forming...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400105
EISBN: 978-1-62708-316-4
... and the blank, their surface conditions, and the BHF. Low friction at the die/blank holder interface and high friction at the punch and cup interface lead to larger achievable LDRs. Values for coefficients of friction (COFs) in deep drawing are typically in the range of 0.04 to 0.10. Equipment and Tooling...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
...; PVC, polyvinyl chloride; CE, canvas electrical grade; PMMA, polymethyl methacrylate; PI, polyimide Fig. 11.8 Ranges of coefficient of friction for plastic versus steel tribosystems (from various plastics manufacturers’ catalogs). PTFE, polytetrafluoroethylene Fig. 11.9 Effect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... in Sheet Metal Forming , J. Mater. Process. Technol. , Vol 130–131 , 2002 , p 60 – 63 10.1016/S0924-0136(02)00784-7 3.8 Yanagida A. and Azushima A. , “ Evaluation of Coefficients of Friction for Hot Stamping by Newly Developed Tribosimulator ,” International Deep Drawing Research...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... COF is the wrong way to go; the COF should be measured while the rubbing surfaces are intact. The inclined plane test in Fig. 5.12(a) only yields breakaway or static coefficient of friction. This test is widely used for paper products, footwear, flooring, and fabrics. It is easy to run...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500133
EISBN: 978-1-62708-317-1
... of the Flow Properties of the Quenchable Ultra High Strength Steel 22MnB5 , CIRP Ann. , Vol 55 ( No.1 ), 2006 10.1016/S0007-8506(07)60404-1 7.10 Yanagida A. and Azushima A. , “ Evaluation of Coefficients of Friction for Hot Stamping by Newly Developed Tribosimulator ,” IDDRG 2009...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780267
EISBN: 978-1-62708-281-5
... on Friction Coefficient Between High Density Polyethylene on Galvanized Steel—Preliminary Results , Wear , Vol 225–229 , 1999 , p 339 – 342 10.1016/S0043-1648(98)00365-2 15. Van De Velde F. and De Baets P. , The Friction and Wear Behaviour of Polyamide 6 Sliding Against Steel at Low...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300271
EISBN: 978-1-62708-323-2
... cermets (in accordance with ASTM International G174) Fig. 10.20 Microstructure of cemented carbide (WC/6Co). Original magnification: 1500× Fig. 10.21 Composition options for cemented carbides Fig. 10.22 Coefficient of friction (kinetic) of various cemented carbide couples...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300163
EISBN: 978-1-62708-323-2
... Fig. 6.2 Effect of normal force on the coefficient of friction of copper (Cu) in continuous unlubricated sliding on type 316 stainless steel (SS) Fig. 6.3 Typical powder metal bronze bearings/bushings Fig. 6.1 Mass copper from Calumet, Michigan, USA Abstract Abstract...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... stresses/distortion —Most materials (especially steels) will have residual stresses after cold forging; distortion occurs when the stresses are not symmetrical. Lubrication—dies and workpiece —viscosity and flow, hydrodynamics of lubrication, friction, heat generation and power losses, coefficients...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... . Nomenclature and units of measure used in this chapter to discuss friction, lubrication, and wear of gears Table 1 Nomenclature and units of measure used in this chapter to discuss friction, lubrication, and wear of gears Symbol Description Units B M Thermal contact coefficient lbf...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500317
EISBN: 978-1-62708-317-1
.... Coatings that may have lower coefficient of friction and high surface hardness help reduce tool failures ( Ref 16.4 ). Tool coatings may require prior preparation of the tools (i.e., to harden or have surface roughness values below some threshold) ( Ref 16.5 , 16.6 ). Lubrication Lubrication helps...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
... Elimination of machining and finishing operations Capability of fabrication with metal inserts and integral designs Lower density (light weight and low inertia) Ability to dampen moderate shock and impact Ability to operate with minimal or no lubrication Low coefficient of friction Smooth...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300421
EISBN: 978-1-62708-323-2
...) Plastic (a) Wear rate (b) Coefficient of friction (c) Cost Weldability Stability Total ABS 0.3 2 10 10 10 32.3 PP 0.5 3.3 7.5 9 8 28.3 PE 10 5 5.5 9 7 36.5 ABS/PE 1.2 3.5 1.2 10 10 25.9 (a) ABS, acrylonitrile butadiene styrene; PP...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300179
EISBN: 978-1-62708-323-2
... many times in this book, a material does not have a coefficient of friction (COF) or even friction characteristics. Friction is a system effect that requires a counterface and method of contact and loading and force measurement. However, in 2018, most lubricant manufacturers are concentrating...