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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001444
EISBN: 978-1-62708-231-0
... Abstract To permit bolting of a 90 lb/yd. flat-bottomed rail to a steel structure, rectangular slots 2 in. wide x 1 in. deep were flame-cut in the base of the rail at 2 ft intervals to suit existing bolt holes. During subsequent handling, one of the rails (which were about 25 ft long...
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Published: 01 June 2019
Fig. 2 Cutting sequence used for metallographic examination of shaft failure. More
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Published: 01 June 2019
Fig. 3 Opened crack (cutting edge on top). 3× More
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Published: 01 June 2019
Fig. 4 Defective saw blade. Peripheral microstructure in chrome plated cutting edge. Transverse section, unetched. 500× More
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Published: 01 June 2019
Fig. 5 Holes enlarged by torch cutting to accommodate beam misalignment in construction. More
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Published: 01 June 2019
Fig. 15 Inner shell following cutting of strips More
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Published: 01 June 2019
Fig. 4 Cutting plan of the piece analyzed. Part 40B is the piece cut out from between the two parts shown in Figure 4a . Part 40B 1 was then examined metallographically as shown in Figures 5 , 6 and 7 . More
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Published: 01 June 2019
Fig. 3 Trimming and cutting of tensile specimen from fully formed tube More
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Published: 01 June 2019
Fig. 3 Analysis of the cutting fluid by EDS revealed the presence of detectable carbon and oxygen. More
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Published: 01 June 2019
Fig. 13 Analysis of the cutting fluid and Coolant 2 by FTIR produced absorption bands indicative of hydrocarbon-based oils and additives. More
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Published: 01 December 1993
Fig. 2 Closer view of fractured cutting edges. Approximately 5×. More
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Published: 01 December 1993
Fig. 3 Electron micrograph showing the fractured cutting edge. Note the directional features going across the face of the tooth. 12×. More
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Published: 01 December 1993
Fig. 5 Reshuffling of residual stresses after hacksaw cutting at a location in the straight portion of a dished end More
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Published: 01 December 1993
Fig. 1 Reducer section after cutting. A crack is visible in the right-hand section -upper left. There is no evidence of erosion or corrosion damage. More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... preventive measures workpiece failures Machining-Related Failures Machining-related failures may be characterized as: Machining workpiece (in-process) failures: Machining condition and parameters contributing to (in-process) workpiece failures: Machine tool, cutting tool, cutting fluid...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048064
EISBN: 978-1-62708-224-2
... Abstract A 10,890-kg coil hook torch cut from 1040 steel plate failed while lifting a load of 13,600 kg after eight years of service. The normal ironing (wear) marks were exhibited by the inner surface of the hook. It was revealed by visual examination that cracking had originated at the inside...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048091
EISBN: 978-1-62708-224-2
... Abstract A section from a stop-block guide fell to the floor on a crane runway after it failed. A brittle crystalline-type break was disclosed by examination of the fracture surface. The point of initiation was in a hardened heat-affected layer that had developed during flame cutting...
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Published: 01 June 2019
Fig. 5 To prepare the shaft for repair welding, a machinist cut a groove into the fractured zone. After a dowel was inserted through the centers to hold the two sections in place, welding proceeded. Note electrical coils that wrap each section; they were used for preheating and postheating More
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Published: 01 June 2019
Fig. 6 Photograph of specimen cut from NRC-1. The locations of SEM samples 5–10 are marked. More
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Published: 01 June 2019
Fig. 6 Shallow angle, planar flaw (lamination) in the off-cut of the Bruce 2 N06 pressure tube. [R and T are the radial and transverse directions respectively.] More