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squeeze-film lubrication

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Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006806
EISBN: 978-1-62708-329-4
... provides an overview of bearing materials, and then presents the various lubrication mechanisms: hydrostatic, hydrodynamic, boundary lubrication, elastohydrodynamic, and squeeze-film lubrication. The article describes the effect of debris and contaminant particles in bearings. The steps involved in failure...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... capacity lubricants rotating shaft sliding bearings squeeze-film lubrication surface roughness MECHANICAL DEVICES usually contain some moving parts. Bearings are usually provided where a specific spatial relationship (alignment) must be maintained between the parts or where a force...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... by overheating. It is very important to highlight that engine syntetic lubricating fluid looses properties and begins to release carbon deposits in the range of 230 ÷ 250°C. Neither carboned deposits nor burnt oil film were detected during visual examination of the frozen components. On the other hand...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... of material from the surface of a bearing race depends on the lubricant viscosity and/or film thickness. Various theories have been proposed that attribute the spalling to hydrostatic pressure of the lubricant being forced into surface cracks to propagate them. Another theory states that the propagation...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... of Rolling-Element Bearings” in Friction, Lubrication, and Wear Technology , Volume 18 of ASM Handbook , 2017, which specifically covers the question of the lubrication function itself (elastohydrodynamic lubrication and the estimation of the minimum film thickness required to lubricate the contact...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
...,” “cocoa,” or “red mud.” In components that are lubricated so that ordinary corrosion is not likely to occur, the presence of reddish brown debris is indicative of fretting. If a component is not lubricated, the presence of oxide powder may not necessarily signify fretting but, rather, wear. Fretting also...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... Abstract This article focuses on the general root causes of failure attributed to the casting process, casting material, and design with examples. The casting processes discussed include gravity die casting, pressure die casting, semisolid casting, squeeze casting, and centrifugal casting. Cast...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... reddish-brown debris of ferric oxide, which, when mixed with oil or grease, produces debris that is often referred to as “blood,” “cocoa,” or “red mud.” Hence, in components that are lubricated so that ordinary corrosion is not likely to occur, the presence of reddish-brown debris is indicative...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
.... Similar effects occur as the polymer flows out of the injection gate. If flow into the part is basically in one direction, it will orient in that direction. This takes place when a plate mold is filled from a film gate at one of the short sides. However, if the melt is injected at the center of a disk...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... significant information should be properly recorded or photographed so that the information can be shown and described to all concerned parties. Color photographs are occasionally required to show contaminants, scorch, and temper color. Every possible piece of information should be squeezed out of the sample...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... areas. (h) Seams that develop from elongated trapped-gas pockets or from cracks during working. (j) Laps when excessive material is squeezed out and turned back into the material. (k) Chevron or internal bursts. See text for additional discussions. It must be clearly recognized that manufactured...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... of carbide films around prior martensite plates. Alloy steels undergo temper brittleness or a reduction in toughness that occurs when the steel is tempered in (or slowly cooled through) the temperature range of 510 to 593 °C (950 to 1100 °F). This phenomenon does not occur in plain carbon steels...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... the seams removed either during manufacturing or during machining. Laps are most often caused by excessive material in a given hot roll pass being squeezed out into the area of the roll collar. When turned for the following pass, the material is rolled back into the bar and appears as a lap...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
..., and chemical characteristics of the contacting surfaces, including the oil film that lubricates the surfaces. The significant stress in rolling-contact fatigue is the maximum alternating shear stress that undergoes a reversal in direction during rolling. In pure rolling, as in antifriction bearings...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... of the contacting surfaces, including the oil film that lubricates the surfaces. The significant stress in rolling-contact fatigue is the maximum alternating shear stress that undergoes a reversal in direction during rolling. In pure rolling, as in antifriction bearings, this stress occurs slightly below...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... of ductile cast iron Black spots G 142 (a) Inclusions in the form of oxide skins, most often causing a localized seam Oxide inclusion or skins, seams G 143 (a) Folded films of graphitic luster in the wall of the casting Lustrous carbon films, or kish tracks G 144 Hard inclusions...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9