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spiral damage

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Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... fillet. The bright and shiny flat areas are regions of postfracture damage produced by the rubbing together of the broken portions of the shaft. (D.J. Wulpi, Consultant) Fig. 474 View of a carburized spiral gear of AISI 4817 steel, showing fine subcase fatigue cracks in the gear-tooth tips...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003986
EISBN: 978-1-62708-185-6
... factors that impact the precision forging process. It provides information on the achievable tolerances and presents examples of precision forging. A discussion on forging of bevel gears/spiral bevel gears is also presented. axle shafts bevel gears precision flashless forging precision hot...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... same Manaurite superalloy shown in (c). Marble’s etch. (e) Scanning electron microscope image of creep void Stress resulting from a twisting motion often has unique characteristics. The fracture surface is usually severely deformed or smeared with a spiral pattern, but on a smooth surface or one...
Book Chapter

By Peter J. Blau
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... Testing geometry Sliding Abrasive wear, 2-body Flat pin-on-rotating abrasive drum (spiral path), reciprocating pin-on-abrasive flat, flat pin-on-moving abrasive belt, traversing pin-on-abrasive disk (spiral path), twin rotating abrasive wheels Abrasive wear, 3-body Dry sand fed between a...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... cyclone in a spiral motion and exit through the spigot with a fraction of the liquid. Damage to pipes and pumps caused by high-speed liquid flow with certain corrosivity is also regarded as erosion-corrosion. Erosion-corrosion can also occur in gas-solid particle flows where chemical reactions on the...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... Abstract Friction and wear are important when considering the operation and efficiency of components and mechanical systems. Among the different types and mechanisms of wear, adhesive wear is very serious. Adhesion results in a high coefficient of friction as well as in serious damage to the...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006038
EISBN: 978-1-62708-172-6
... products (asphalt or coal tar) were reinforced by application of a tar-saturated felt mat that was worked into the hot matrix ( Fig. 1 ). The system was completed with a spiral wrap of kraft paper. Coating application typically took place over the trench. For many years, the built-up coal tar and asphalt...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001314
EISBN: 978-1-62708-170-2
... bond 24 or 36 None 25–30 5000–6000 Roughing Cotton fabric, sewn sections 60 or 80 None 30–40 6000–7500 Dry fining Cotton fabric, sewn sections 100 or 120 None 30–40 6000–7500 Greasing 64–68 unbleached sheeting, spirally sewn sections 150 or 180 Polishing tallow or No. 180...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005419
EISBN: 978-1-62708-196-2
... for a crack in a spiral-bevel gear. This demonstrates the complexity of geometry that can be incorporated in this type of model. Fig. 9 Simulated crack growth in spiral-bevel gears. The model provides color images. The largest values are at the ends of the crack. The smallest values (compressive...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... Cloth (a) 2100 23 80-grit silicon carbide 29 None or light application of grease stick Final polishing Cloth (a) 2100 30 220-grit Al 2 O 3 49 Grease stick Spot polishing Cloth (a) 2100 46 220-grit Al 2 O 3 77 Grease stick General buffing Spiral-sewn, treated cloth...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006048
EISBN: 978-1-62708-172-6
... the metal edge, the more important is the use of profiling mastic. Apply the tape: The tape can be applied using a spiral- ( Fig. 5 ) or cigarette-wrap method, which uses a series of shorter parallel sections of tape applied one piece at a time. For very irregular-shaped fixtures, such as large...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000607
EISBN: 978-1-62708-181-8
... slowly that oxidation occurred (note darkness of fatigue zone at left). 3× Fig. 265 Fractured 13-mm ( 1 2 -in.) diam spring of AISI 10B62 steel wire with a hardness of 477 HB. Note the spiral gouges, which are screw marks that were generated during coiling. See also Fig. 266 . 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... decarburization, as discussed here for a spiral power spring. Figure 8 shows two spiral power springs that were designed to counterbalance a textile-machine beam. The spring in Fig. 8(a) was satisfactory and took a normal set when loaded to solid deflection in a presetting operation. The spring in Fig. 8...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001234
EISBN: 978-1-62708-170-2
... to one another. This is referred to as the lead angle. When set within the normal range established by the manufacturer, a spiral motion is imparted to the mass of parts and media. Changing the relationship of the weights alters the spiral path, the speed at which the load moves around the bowl, and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003226
EISBN: 978-1-62708-199-3
... I fracture). A spiral-type fracture is one characteristic of this type of loading and material and can be demonstrated by twisting a piece of chalk to fracture ( Fig. 8 ). The elastic-stress distribution in pure torsion is maximum at the surface and zero at the center. Thus, fracture normally...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003037
EISBN: 978-1-62708-200-6
... g/cm 3 . Tube core is manufactured by spirally wrapping a corrugated sheet with adhesive applied to the nodes and a flat sheet around a mandrel. The inside and outside diameters are variable. This core configuration is used exclusively for energy absorption applications. Honeycomb test...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006458
EISBN: 978-1-62708-190-0
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005955
EISBN: 978-1-62708-166-5
... hot zone prior to heating. Failure to do so will result in extensive damage to these parts due to eutectic melting. This will lead to high maintenance and replacement costs as well as significant furnace downtime, and loss of revenue as the furnace is repaired. Mechanical pumps operate on the...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... guideline to determine the degree of superheat needed: (Eq 1) L = 2.4 Δ T + 110 where L is the length of spiral fluidity (in millimeters), and Δ T is the degree of superheat (in degrees centigrade). The use of Eq 1 for ferrous alloys results in casting temperatures that are 50 to 100 °C...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... described as vertical (upright cylindrical), drum (horizontal cylindrical), and low profile (spherical). Typically, all of these units are hydraulically tilted to permit the emptying of the contents. The coreless furnace is completely surrounded by a spiral of copper tubing of a special cross section that...