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usage monitoring systems

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003558
EISBN: 978-1-62708-180-1
... relative to it. Wear is progressive in that it increases with usage or increasing amounts of motion, and it ultimately results in the loss of material from a surface or the transfer of material between surfaces. Wear failures occur because of the sensitivity of a material or system to the surface changes...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
.... As a result, the overall load at the fracture-critical location in a spin-pit simulation test is lower than that which is operative during service. Conclusion and Recommendations The aircraft under investigation were not equipped with airborne data recorders for monitoring the cyclic usage...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... in this article for different AM processes. Powder-Bed Fusion Figure 5 is a schematic of a generic PBF system. In PBF, a component is built in a series of layers, each with a thickness of 10 to 50 μm. In principle, the entire volume of the part can be inspected during the build process by monitoring each...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006916
EISBN: 978-1-62708-395-9
... Process based on machine inputs Process based on derived data from testing and monitoring Temperatures Reliance on barrel temperature settings Reliance on actual melt temperature Velocity (Injection speed) Slow to fast Fast — as fast as possible Pressures Fill/pack/hold — all same...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001828
EISBN: 978-1-62708-241-9
... provided the recorded data for the on-line monitored parameters of the pump motor set during the incident. These data were used in estimating some of the following critical system parameters using a computer code. Selected data are summarized as: The duration of the incident was approximately 50 min...
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
... documentation system of the company, organization, or industry to prevent recurrence in similar products or systems. Monitor changes to ensure effectiveness. The second step in the problem-solving model, determine root cause , introduces a very significant process. Solutions to prevent recurrence...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006930
EISBN: 978-1-62708-395-9
... on HDPE (high-density polyethylene) at 230 °C (450 °F) in air Another important usage of the dynamic time sweep is to monitor curing reactions. These are often performed at a frequency of 1 Hz but are also done at a frequency of 10 rad/sec. One example of an isothermal time sweep where curing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... that the problem is corrected and improves customer satisfaction. Standardize: Incorporate the corrective action into the standards documentation system of the company, organization, or industry to prevent recurrence in similar products or systems. Monitor changes to ensure effectiveness. The second...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... system. The intention here is simply to set the physical failure within a broader context and then to focus on assessing the design process evidence available within that context. The article purposely does not address issues such as manufacturing, operation, and maintenance, except as they relate...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
... a straight, flat component with teeth that match the geometry of the driving gear, the pinion. As shown in the figure, they can be spur or helical sets, and both are often used in automotive steering systems and as linear actuators. Figure 3 shows a large industrial reducer with a pair of double...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... and cracks, while methods such as radiography and ultrasound are capable of detecting imperfections within a part. Other methods are more suited for online monitoring, which is a quality-control function in production systems. Also, there are many NDE methods used for condition monitoring of parts in service...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... as the noted observations, are described. Six stages [two machined (MP) and four electron beam (EB) welded] from the mercury diffusion pumps operating in the Tritium Purification process at SRS have been analyzed to determine their condition after nine months of usage. Several cracks were found around...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
..., location and geometry of the empennage, the power plant of the aircraft, and anticipated usage. The same may be said for the other two vehicles, except for the particular geometry associated with the aircraft and the vertical dimension of flight. It should be noted that these other vehicles also experience...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
.... For example, a steel specimen was machined in three regions, each with different machine tools, to introduce variations in surface roughness on the same specimen ( Ref 35 ). The stress was then measured in the three regions via XRD techniques under independently monitored tensile loads. X-ray diffraction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... inspection are: Both surface and subsurface defects are detectable. No special operator skills are required. The process is adaptable to continuous monitoring. The process may be substantially automated and is capable of high speeds. No probe contact is needed. Limitations...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... and residential plumbing systems, SCC can occur in brass plumbing components that are used in a hard temper condition or that have residual stresses from final finishing, such as rolled threads. Stainless steel clamps used in residential cross-linked polyethylene (PEX) plumbing systems exhibit SCC when moisture...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... engineering. The article presents the nomenclature, numbering systems, and worldwide market of REBs as well as provides description of REBs as high-tech machine components. It discusses heat treatments, performance, and properties of bearing materials. The processes involved in the examination of failed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
..., which is the monitoring of welder and equipment performance and of the quality of the consumables and the base materials used Acceptance or rejection of a weld on the basis of its fitness for purpose under the service conditions imposed on the structure, and typically governed by a construction code...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4