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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001901
EISBN: 978-1-62708-218-1
... failure of the part. POM should not be selected for automotive applications where elevated temperatures and acidic environments can exist. If exposure to acid is suspected, sodium bicarbonate should be applied to neutralize the surrounding environment, followed by copious quantities of water, and repeated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090626
EISBN: 978-1-62708-218-1
... Abstract A steel spring used in an automotive application suddenly began to fail in the field, although “nothing had changed” in the fabrication process. Fatigue tests using springs fabricated prior to field failures lasted 500,000 cycles to failure, whereas fatigue tests performed on springs...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090442
EISBN: 978-1-62708-218-1
... Abstract A number of plastic sleeves used in an automotive application cracked after assembly but prior to installation into the mating components. The sleeves were specified to be injection molded from a 20% glass-fiber-reinforced polybutylene terephthalate (PBT) resin. After molding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090466
EISBN: 978-1-62708-218-1
... Abstract A production lot of mechanical hinges used in an automotive application had failed during incoming quality-control routine actuation testing. A change in part supplier had taken place between the approval of the prototype parts that performed acceptably and the receipt of the first lot...
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Published: 15 May 2022
Fig. 20 Tensile stress/strain at 23 °C (73 °F) for nylon 6/6 30% glass fiber. Stress-strain curve represents the nylon 6/6 resin that was used to produce the failing aftermarket automotive components. The identified level of stress inherent to the application is indicated. More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006869
EISBN: 978-1-62708-395-9
... Abstract Reinforced polymers (RPs) are widely used in structural, industrial, automotive, and engineering applications due to their ecofriendly nature and the potential to manipulate their properties. This article addresses the technical synthesis of RPs, referring to their tribological...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... thermoplastics are presented for comparison. Finally, the properties and applications of six common thermosets are briefly considered. chemical properties chemical structure electrical properties mechanical properties optical properties thermal properties thermoplastics thermosets...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001271
EISBN: 978-1-62708-215-0
... Abstract A carbon steel ball-peen hammer ejected a chip that struck the user's eye. Failure occurred when two hammers were struck together during an attempt to free a universal joint from an automotive drive shaft. Two samples were cut from the face of the hammer one through the chipped area...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001121
EISBN: 978-1-62708-214-3
... fracture Heat treating-related failures Background An AISI D2 tool steel insert from a forming die used in the manufacture of automotive components failed prematurely during production. Applications In an automotive stamping plant, forming dies are used for the manufacture of metal...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001092
EISBN: 978-1-62708-214-3
... stresses Transmissions (automotive) 4320H UNS H43200 Rolling-contact wear Fatigue fracture Background A transfer gear shaft that was part of a transmission sustained severe surface damage after 12 h of dynamometer testing at various gearing and torque loads. Applications The gear shaft...
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
..., but there are practical guidelines for selecting material types based on applied stress. Table 1 lists such information. Peak stresses for normal fatigue life of various bearing materials used in automotive applications<xref rid="n0010057" ref-type="table-fn">(a)</xref> Table 1 Peak stresses for normal fatigue...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... in an Automotive Coil Spring The existence of a raw material defect within the steel matrix, such as a nonmetallic inclusion, can have adverse effects on the fatigue performance of springs depending on the size and location of the defect and the application load of a coil spring ( Ref 5 ). Figure 2(a) shows...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... such a large displacement that it dents the sheet metal of the automobile, then it has failed in its function. In other applications, the criteria defining failure may be linked directly to damage. If a plastic panel is to be used in an exterior automotive body application, the ability to withstand an impact...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006939
EISBN: 978-1-62708-395-9
... for use. This results in a wide variety of surface-modifier applications across automotive, aerospace, electronics, engineering polymers, paint and coatings, cement and construction, biomedical, textile, and petrochemical industries ( Ref 45 ). Types of Surface Modifiers Surface modifiers can...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... K.A. , Richards M.D. , Speer J.G. : Surface processing to improve the fatigue resistance of advanced bar steels for automotive applications . Mater. Res. 8 ( 4 ), 453 – 459 ( 2005 ). 10.1590/S1516-14392005000400017 15. Dieter G.E. : Mechanical Metallurgy. SI Matrix edn...
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
... that failed by fatigue. (a) Wormhole appearance in a lead-base Babbitt bearing. (b) Flaking (between arrows) of overlay in a trimetal bearing Peak stresses for normal fatigue life of various bearing materials used in automotive applications Table 1 Peak stresses for normal fatigue life of various...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001306
EISBN: 978-1-62708-215-0
... caused the inner wheel nuts to loosen during break-in and lose the required clamping force. The development and promotion of educational programs on proper wheel tightening procedures was recommended. Automotive wheels Bolted joints Fasteners Mechanical properties 1541 UNS G15410 Fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001614
EISBN: 978-1-62708-225-9
... Abstract The damage to a screw on the head of a 1.8 liter personal car engine was nucleated as the result of common disadvantageous environmental influences and reversed loads leading to corrosion fatigue. Automotive Screw steel Fatigue fracture Corrosion fatigue The seal coupling...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001732
EISBN: 978-1-62708-218-1
..., or unspecified) failure Over the years, the automotive industry in general, Ford included, has evolved an approach to design of products which will have an acceptable life in the hands of the customer. In each case, proving ground and road tests have been employed as the chief tool to establish the adequacy...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... performance. Ultraviolet Radiation Degradation due to solar radiation, especially its ultraviolet (UV) component, is the primary concern when plastics are intended for outdoor use. The reference spectral irradiance of solar radiation (sunlight) for weathering applications is described in CIE 241 as CIE...