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forging overlap

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001845
EISBN: 978-1-62708-241-9
.... The investigation results suggest that the root cause of failure was a forging lap that occurred during manufacturing. Precracks induced by the forging defect and the influence of preload stress (due to bolt torque) caused the premature failure. cable clamps brittle fracture forging overlap copper alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0059924
EISBN: 978-1-62708-235-8
...Abstract Abstract The large steel ring produced for a nuclear application from a billet of 8822 steel was inspected. The large billet was first forged into a doughnut preform in a large press, and then formed into the ring by ring rolling. A straight-beam ultrasonic inspection was instituted...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
.... A semicircular crack (underbead crack) occurred roughly parallel to the weld bond line. This crack caused the weld to fail during pressure testing. These welds are made by forging a weld between overlapped plate edges. The weld is made using forging rolls that form a low-angle weld through the thickness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001500
EISBN: 978-1-62708-221-1
... remaining pinion tooth through the midsection. Mount and prepare the sample for a case hardness traverse and a microscopic examination. From the date of manufacture, the documented information on hand showed the pinion to be one of 10 forgings made from Republic Heat 6070929, grade 4820H. A nickel spot...
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
...” in this Volume. One of the most powerful tools in a failure investigation is the stereomicroscope, using the low end (5 to 20×) of its magnification range. This is often a step that overlaps with visual examination. The relationship between the failed component, its primary damage, and other indications...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001756
EISBN: 978-1-62708-241-9
... and rub, and aerodynamic excitation occurring in upstream vanes, downstream struts, and blades whereby engine excitation frequencies and component response frequencies corresponding to different modes of vibration may overlap. Aeromechanical instability, primarily in blades, accompanying aerofoil flutter...
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
... indications that are found by nondestructive testing methods. Surface features that are causes for rejection include: Excessive mismatch at the weld joint Excessive bead convexity and bead reinforcement Excessive bead concavity, underfill, and undersized welds Sharp undercut and overlap...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... are present within the lack-of-fusion region due to the evolution of the melt pool during processing. Lack-of-fusion defects are a result of insufficient overlap between passes, influenced by a mismatch in hatch-spacing parameters ( Ref 30 ), where hatch spacing refers to the distance between two adjacent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001393
EISBN: 978-1-62708-230-3
... separate cracks were present, most likely due to the fact that the section intersected two separate cracks which had broken out at different locations round the seam and during their subsequent development in the circumferential direction overlapped at their ends by a small amount. Fig. 13...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
..., such as an insufficient or missing groove for a groove weld, insufficient fit-up relief in a socket weld, or inadequate joint overlap in a brazed joint. Other geometry-caused failures can result from insufficient section thickness for a failure based on gross yielding, excessive section thickness in the presence...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... or missing groove for a groove weld, insufficient fit-up relief in a socket weld, or inadequate joint overlap in a brazed joint. Other geometry-caused failures can result from insufficient section thickness for a failure based on gross yielding, excessive section thickness in the presence of a flaw...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001347
EISBN: 978-1-62708-215-0
..., the attachment of the shell segment to nozzle ring is not a monoblock casting, forging, or full penetration butt weld. Fig. 13 illustrates the fillet weld lap joint attachment of the tank car nozzle to the two ring shell segments of the tank car shell. Fig. 13 Nozzle/plate lap weld to two center shell...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... aluminum alloy with equiaxed grains. 130×. (b) Intergranular fracture along the part line of an aluminum forging Fig. 3 SEM image of fracture surface of nickel-base alloy (Inconel 751, annealed and aged) after stress rupture (730 °C, or 1350 °F; 380 MPa, or 55 ksi; 125 h). (a) Low-magnification...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
.... (a) Rock candy appearance from atmospheric stress-corrosion cracking of a high-strength aluminum alloy with equiaxed grains. Original magnification: 130×. (b) Intergranular fracture along the part line of an aluminum forging Fig. 5 Tensile test fracture surface of a high-purity, coarse-grained Al...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... rolled, extruded, or forged products are stressed in the short-transverse direction. In wrought austenitic stainless steels, crack paths are usually transgranular if proper heat treatment has been employed. However, if thermal processing has produced sensitization because of carbide precipitation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... the central force mode (defined later in this article) with an automated grinder/polisher, because this method provides better flatness than individual pressure mode). Orient the position of the smaller-diameter specimen holder so that, as it rotates, its periphery slightly overlaps the periphery...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... teeth that are curved and oblique and that lie along a spiral at an angle to the shaft. The inclination of the teeth results in gradual engagement and continuous line contact or overlapping action; that is, two or more teeth are in contact at all times. Because of this continuous engagement, the load...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... (a) Macrograph of fracture, (b) SEM fractograph, and (c) light micrograph showing shrinkage cavities in an unusual tensile fracture from a carbon steel casting. The microstructure was revealed using nital. Fig. 25 Light micrographs of two cross-sectional views of a seam found on a closed-die forged...