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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047830
EISBN: 978-1-62708-235-8
...) was determined. Indication of fatigue failure was revealed by visual examination of the fracture surfaces. Rough grooves from hot trimming of the flash were visible on the surface of the cheeks. The outer face of one cheek of the throw on the forging contained shallow surface folds. Slightly decarburized forged...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0047615
EISBN: 978-1-62708-230-3
... with the most severe cracking were ground and repair welded. The square corners of the fins were trimmed back with a gradual taper so that expansion strains would be more gradually transferred to the tube surface. Water chemistry was closely evaluated and monitored, especially with regard to oxygen content...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001270
EISBN: 978-1-62708-215-0
... in the forgings and from material flow during trimming and/or material flow during forging. Closed-die forging Cracking (fracturing) Die forgings Alloy steel Carbon steel Metalworking-related failures Intergranular fracture Background Testing Procedure and Results Discussion Conclusion...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001124
EISBN: 978-1-62708-214-3
... in.) on either side of the fracture. These were attributed to trimming that followed the wire joining. Fig. 1 Aluminum alloy conductor strands composed of 19 wires, with fracture and crack locations identified. All of the fractures and cracks were at the wire joints. Nondestructive Evaluation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001462
EISBN: 978-1-62708-224-2
... welding process, as used in the manufacture of these chain links, and arise in material which is overheated during the weld cycle. Most of the oxidised material is exuded into the flash which is removed by the trimming operation that is carried out after welding. The flash remaining on the links that were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001587
EISBN: 978-1-62708-217-4
... corresponding to the initial descent, the autopilot disengaged. Simultaneously, the horizontal stabilizer trim moved to the full nose down position in six seconds, remaining in that position until the final upset. As recorded on the cockpit voice recorder, the crew commented that they were not able to maintain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... 88%, was trimmed, and tensile test samples were taken from a fully formed extra length of the tube as per ASTM A 370 ( Fig. 3 ). The specified and achieved mechanical properties and dimensional accuracies are presented in Table 2 . Flow forming sequence with thickness and hardness variations...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
... the deposition on component surfaces of radioactive isotopes that has previously been activated in the reactor core. In the typical sequence of events, 2 corrosion products from reactor coolant piping, feedwater heaters, valve trim, and other upstream cooling-circuit components are carried by the coolant...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001569
EISBN: 978-1-62708-229-7
... (approximately 40 tubes were repaired this way). The fin ends of all tubes were profile trimmed to better redistribute the local strains into the tube ( Figure 19 ). The unit ran with no further failures for approximately 1– 1 2 years. The economizer was then replaced with one of a different design...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
... roughing die, where it was given a single large deformation at a high strain rate. The partially-formed kingpin was then moved to the finishing die and given a smaller deformation at a slower strain rate. The final piece was trimmed of flash and dropped in a steel bin to cool. It was then reaustenitized...
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
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001608
EISBN: 978-1-62708-236-5
... during coiling. Such damage is not possible during transport; (b and c) serrated edges on hot rolled steel coil. This condition is a natural result of hot rolling, but it should be trimmed away at the steel mill prior to shipping. Fig. 17 Strapping: Strapping can be poor to begin with, or can...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
... that was coated with a protective glass film after laser trimming and finished with an epoxy coating. Continuity through the resistive element was established by solder attachments to the assembly lead frame through edge terminations. Fig. 1 Chip detail schematic, indicating chip construction as having...
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
... welds Weld-area cracks Incomplete fusion Porosity Slag inclusions Inclusions at skelp edge Off seam Repair welds Incomplete penetration Electric welds (a) Upturned fiber cracks Weld-line inclusions Cold weld Excessive trim Contact burns Field weld...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... is open to the atmosphere. (b) Structural members should be designed to avoid retention of liquids; L-shaped sections should be used with the open side down, and exposed seams should be avoided. (c) Incorrect trimming or poor design of seals and gaskets can create crevice sites. (d) Drain valves should...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003519
EISBN: 978-1-62708-180-1
... is another problem-solving technique used in failure analysis that streamlines the process and works well in situations where industrial failures occur. The KT method is not as thorough as fault-tree analysis because potential causes get trimmed early in the process if they are found to be impossible...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... sections should be used with the open side down, and exposed seams should be avoided. (c) Incorrect trimming or poor design of seals and gaskets can create crevice sites. (d) Drain valves should be designed with sloping bottoms to avoid pitting of the base of the valve. (e) Nonsloping tubing can leave...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006755
EISBN: 978-1-62708-295-2
... are trimmed early in the process if they are found to be impossible. However, it is a useful method of problem solving and decision analysis. The KT method is a structured problem-solving approach that first defines the problem in terms of what “is” and what “is not” as related to the questions of what...