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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...
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Published: 01 December 2006
Fig. 4.58 Dependence of the viscosity of glass lubricants on the temperature [ Sce 83 ] No. Type of glass Approximate composition Recommended temperature range, °C 1 Lead-borate 10 B 2 O 3 , 82 PbO, 5 SiO 2 3 Al 2 O 3 530 2 Borate … 870 3 Potassium-lead More
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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
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
... Abstract This chapter discusses the factors that must be considered when selecting a lubricant for sheet metal forming operations. It begins with a review of lubrication regimes and friction models. It then describes the selection and use of sheet metal forming lubricants, explaining how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the effect of friction and lubrication on forgings and forging operations. The discussion covers lubrication mechanisms, the use of friction laws, tooling and process parameters, and the lubrication requirements of specific materials and forging processes...
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...
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Published: 30 April 2020
Fig. 4.2 A lubricant is selected for friction reduction, as evident in this plot for a 3.5 μm molybdenum powder treated with ethylene bis-stearamide as the lubricant. The force required to remove the compact from the tooling decreases rapidly with small concentrations of added lubricant, while More
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Published: 01 September 2005
Fig. 7 Regimes of lubrication for carburized gears of normal industry quality material (Grade 1 material, per Ref 2 ) More
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Published: 01 December 2006
Fig. 3.2 Process sequence of direct hot extrusion without lubrication and without a shell, with loose dummy block. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block or pressure pad; g, extrusion stem More
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Published: 01 December 2006
Fig. 3.3 Process sequence of direct hot extrusion without lubrication and without a shell, with dummy block fixed to the stem. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block or pressure pad; g, extrusion stem More
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Published: 01 December 2006
Fig. 3.4 Billet-on-billet direct hot extrusion without lubrication and without a shell, with dummy block fixed to the stem. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block; g, extrusion stem; h, discard from the previous extrusion More
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Published: 01 December 2006
Fig. 3.8 Stage in hot direct extrusion of AlMg3 without lubrication and without a shell (container diam = 140 mm; extrusion ratio V = 50; initial billet length = 450 mm; initial billet temperature = container temperature = 450 °C) More