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pin fasteners

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... Abstract This article discusses different types of mechanical fasteners, including threaded fasteners, rivets, blind fasteners, pin fasteners, special-purpose fasteners, and fasteners used with composite materials. It describes the origins and causes of fastener failures and with illustrative...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
.... Further, the article discusses the types of rivet, blind fastener, and pin fastener failures. Finally, it provides information on the mechanism of fastener failures in composites. blind fasteners corrosion fasteners fretting pin fasteners rivets threaded fasteners THE PRIMARY FUNCTION...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048634
EISBN: 978-1-62708-225-9
... from the pins, which were then baked and repeated with a dull, porous cadmium layer that allowed outward diffusion of hydrogen. The pins were baked again after deposition of the porous cadmium layer. This eliminated the problem. Electroplating Fasteners Hydrogen embrittlement 8740 UNS G87400...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001260
EISBN: 978-1-62708-235-8
... Abstract One percent Cr-Mo low alloy constructional steel is widely used for high tensile applications, e.g., for manufacture of high tensile fasteners, heat treated shafts and axles, for automobile applications such as track pins for high duty tracked vehicles etc. The steel is fairly through...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001660
EISBN: 978-1-62708-236-5
... of fastener is designed so that during installation, the nuts (collars) separate in half (torque off) leaving a portion of the collar tight against the bolt (pin) at a specified torque ( Figures 1 ). Pins from three different commercial sources were evaluated in the present investigation and are referred...
Image
Published: 01 June 2019
Fig. 1 Photomacrograph of the fastener combination investigated in this paper (a). During normal installation, the collar separates (b). For a number of fasteners, the pin fractured instead of the collar separating (c). More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0048665
EISBN: 978-1-62708-217-4
... corrosion 300M UNS K44220 Stress-corrosion cracking Both jackscrew drive pins on a landing-gear bogie failed suddenly when the other bogie on the same side of the airplane was kneeled for a tire change. The pins were smooth cylindrical tubes that fastened the top tubular ends of the jackscrew...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001080
EISBN: 978-1-62708-214-3
... was responsible for the loosening of the nut. It was recommended that the locking mechanism be redesigned and changed in all existing turbines. Locking Nuts (fasteners) Turbine disks Turbine steel (Other, miscellaneous, or unspecified) failure Background A290 mm (10 in.) diam horizontal steam...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0089530
EISBN: 978-1-62708-219-8
... Abstract A sand-cast steel eye connector used to link together two 54,430 kg capacity floating-bridge pontoons failed prematurely in service. The pontoons were coupled by upper and lower eye and clevis connectors that were pinned together. The eye connector was found to be cast from low-alloy...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001815
EISBN: 978-1-62708-241-9
.... The pins were reportedly manufactured by casting as oversized rods, cold rolling to near final diameter, fourstroke cold-heading of the head features, and final machining of the seal surface shank and threads. No intermediate annealing operations were reported. fastening pin corrosion stress...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006821
EISBN: 978-1-62708-329-4
... tomography scanning, or by using a coordinate-measuring machine. Another common task performed at aircraft inspections is mechanically disassembling or reassembling various aircraft components or structures. This may involve removing or reconnecting various components or fasteners. It could also involve...
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
... corrosive wear of materials include pin-on-disc, slurry-pot erosion, slurry-jet erosion, and cavitation-corrosion tests ( Fig. 4 ), which simulate different corrosive wear conditions. Figure 4(a) schematically illustrates a pin-on-disc tester in accordance with ASTM G 99 ( Ref 27 ) for evaluating abrasion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001353
EISBN: 978-1-62708-215-0
... was made of two separate flap pieces fastened together at the outer periphery using bolts and spacers. The flap pieces were elliptical, with an approximate size of 1927 × 1187 × 80 mm (76 × 47 × 3 in.). The bolted flap body was mounted using a dowel pin on the central shaft, which passed through a central...
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
... is greater than the rate of heat dissipation, more thermally driven severe and unstable plastic deformation will occur, resulting in scuffing propagation; otherwise, scuffing will be limited to only the severely deformed initiation site ( Ref 36 ). Seizure Seizure means to bind or fasten together...
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
... A SHAFT IS A METAL BAR—usually cylindrical in shape and solid but sometimes hollow—that is used to support rotating components or to transmit power or motion by rotary or axial movement. Even fasteners, such as bolts or studs, can be considered to be stationary shafts, usually with tensile forces...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... installation torque. Investigation Typical failed fasteners are shown in Fig. 2(a) . Substantial necking accompanied all of the fractures. The fractographic features were consistent with dimple rupture, and the macroscopic necking is shown metallographically in Fig. 2(b) . The chemical composition...
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
...—that is used to support rotating components or to transmit power or motion by rotary or axial movement. Even fasteners, such as bolts or studs, can be considered to be stationary shafts, usually with tensile forces, but sometimes combined with bending and/or torsional forces. In addition to failures in shafts...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... at the normal installation torque. Investigation Typical failed fasteners are shown in Fig. 2(a) . All fractures showed substantial necking. Fractographic features were consistent with dimple rupture, and macroscopic necking is shown metallographically in Fig. 2(b) . The chemical composition...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
... for the wing leading edge flap are fastened ( Fig. 1 ). The outboard and inboard supports had fractured, leading to loss of the flap in flight. Despite this, the aircraft was able to land safely. Analysis of the fracture was first performed by the materials engineering laboratory of the aircraft overhaul...
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
... in failures, such as the use of cadmium plating on an A286 superalloy fastener, subjected to service temperatures above 315 °C (600 °F) (the melting temperature of cadmium is 320 °C, or 610 °F). Two metals specified for use in a wear application could sustain galling if the metals are incompatible...