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concentric grooves

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Published: 01 January 2000
Fig. 5 Compression-test end profiles for lubricant entrapment. (a) Concentric grooves. Source: Ref 7 . (b) Rastegaev reservoir. Source: Ref 8 . (c) Modified Rastegaev reservoir. Source: Ref 9 More
Image
Published: 01 January 1989
Fig. 3 Combination tool for producing a groove close to a concentric pilot hole More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005558
EISBN: 978-1-62708-174-0
... of the acceptable fatigue stresses in welded structures. The preference for one type of weld joint over another may be affected by the need to prevent fatigue cracking. Groove welds can usually be made with lower stress concentrations than fillet welds. Moving weld ends to low-stress areas can also improve fatigue...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006066
EISBN: 978-1-62708-175-7
.... With these advantages, PM stainless steel has carved out a major portion of the automotive exhaust flange and oxygen sensor boss market. Figure 1 shows a PM stainless steel exhaust flange with concentric grooves on both surfaces. Fig. 1 A four-bolt automotive exhaust flange made of press and sinter PM...
Image
Published: 01 January 2002
Fig. 33 Effect of stress raisers on stress concentration and distribution of stress at several changes of form in components. (a) to (c) Progressive increases in stress with decreasing fillet radii. (d) to (f) Relative magnitude and distribution of stress resulting from uniform loading. (g More
Image
Published: 15 January 2021
Fig. 42 Effect of stress raisers on stress concentration and distribution of stress at several changes of form in components. (a) to (c) Progressive increases in stress with decreasing fillet radii. (d) to (f) Relative magnitude and distribution of stress resulting from uniform loading. (g More
Image
Published: 01 January 1987
Fig. 476 Surface of a fatigue fracture that began at six fillet areas around the periphery of a shaft, near the runouts of spiral grooves. The material is AISI 4817 steel; the shaft was carburized and heat treated to a surface hardness of 60 HRC. The fatigue cracks penetrated equally More
Image
Published: 30 August 2021
. The fracture is to the viewer’s left, and the concentric lathe tool cutting marks can be seen as vertical parallel grooves farther to the right of the pitting More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004154
EISBN: 978-1-62708-184-9
... concentrate in the boiler water. Where the solubility of an impurity is exceeded, steam formation may leave behind precipitated deposits. These deposits in turn provide a sheltered environment that further increases chemical concentrations and deposition rates. In a clean boiler tube, concentration...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.9781627081740
EISBN: 978-1-62708-174-0
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
... failure mechanism was fracture by torsional fatigue, which started at numerous surface shear cracks, both longitudinal and transverse, that developed in the periphery of the root of the shear groove. These shear cracks resulted from high peak loads caused by chatter. Stress concentrations developed...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004178
EISBN: 978-1-62708-184-9
... Abstract This article describes the selection of materials for the production and handling equipment of concentrated sulfuric acid, depending on factors such as the allowable corrosion rate, desired mechanical and physical properties, fabrication requirements, availability, and cost. Materials...
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
... cracks, both longitudinal and transverse, that developed in the periphery of the root of the shear groove. These shear cracks resulted from high peak loads caused by chatter. Stress concentrations developed in the regions of maximum shear, and fatigue cracks propagated in a direction perpendicular...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005409
EISBN: 978-1-62708-196-2
... completely segmented the plate. Fig. 4 Schematic illustration of the geometry during boundary grooving. Source: Ref 23 , 24 The Mullins grooving analysis ( Ref 23 , 24 ) determines the solute concentration field that satisfies the steady-state diffusion (Laplace's) equation subject...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005646
EISBN: 978-1-62708-174-0
... cutting to any subsequent thermal, mechanical, or back weld A weld made at the back of a single- process that melts base metals by the heat chemical treatments. groove weld. of a carbon arc and removes the molten autogenous weld A fusion weld made without balling up The formation of globules of molten...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... sections are often points of initiation of cracks. Small fillets, sharp corners, grooves, and threads act as stress raisers from which fatigue cracks initiate and fractures propagate. Correct design of a threaded shank on a hook, for example, and the stress-relief groove at the base of a threaded shank...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... marks, and threaded sections often act as points of crack initiation. Small fillets, sharp corners, grooves, and threads act as stress raisers from which fatigue cracks initiate and fractures propagate. Correct design of a threaded shank on a hook, for example, and the stress-relief groove at the base...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002368
EISBN: 978-1-62708-193-1
... units). The stress concentration factor ( K t ) depends on geometry. For each groove in a threaded bolt the adjacent threads act as relief notches so that the stress concentration factor is much lower than that of a single groove of the same geometry. Otaki ( Ref 13 ) estimated the stress concentration...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
..., undercut, and weld ripples. Geometric imperfections have the effect of locally elevating the stress over and above the nominal stress due to stress concentration from the joint geometry. Methods for calculating the stress concentration factor due to misalignment are readily available ( Ref 4 ). However...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989