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counterboring

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001561
EISBN: 978-1-62708-229-7
... stage (two repairs completed). The pipe had also been counterbored prior to installation for ease in pipe fit-up prior to welding. The crack on the outside surface of the pipe was approximately five inches long, ran parallel to the girth weld and was reasoned to be in the weld heat-affected zone...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0089722
EISBN: 978-1-62708-217-4
... , p 700 – 727 10.31399/asm.hb.v11.a0003544 Visual examination of the elbow assembly revealed a crack in the fillet weld that joined the tube to the shoulder fitting. In assembly, the tube was inserted into a counterbore in the shoulder fitting (original design, section A-A, Fig. 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001743
EISBN: 978-1-62708-217-4
... concentrations at the thread roots. Figs. 1 and 2 illustrate one example of the most common type of cylinder failure. Fig. 1 When opened, crack on cylinder dome surface was found to be progressive and old. Fig. 2 The crack (arrow) extended at the exhaust valve seat counterbore where...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001327
EISBN: 978-1-62708-215-0
... been observed previously on feedwater pipes at various nuclear power plants. The location of the large, single crack at the counterbore was similar to that observed at other PWRs. This crack and the smaller cracks exhibited crack arrests and a tight oxide film. The nature of the nozzle/reducer area...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001301
EISBN: 978-1-62708-215-0
.... The rework included opening the counterbore, sleeving previous gear-to-camshaft bolt holes, and redoing the bolt holes. These two reworked gears were then installed at the rear of the dragline unit in April 1983, and new front gears were installed on November of the same year. The rear gears failed...
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