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manufacturing defects

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Journal Articles
AM&P Technical Articles (2023) 181 (5): 31–33.
Published: 01 July 2023
... ASM International® 2023 2023 ASM International fire risk industrial computed tomography lithium-ion batteries manufacturing defects ADVANCED MATERIALS & PROCESSES | JULY/AUGUST 2023 KWWSVGRL RUJDVP DPSS TECHNICAL SPOTLIGHT KEEPING EV LITHIUM-ION BATTERIES GREEN WITH CT-SCAN DATA...
Journal Articles
AM&P Technical Articles (2020) 178 (6): 16–21.
Published: 01 September 2020
... composition. Over time, blade Fig. 2 Microwave inspection of highdensity polyethylene. ADVANCED MATERIALS & PROCESSES | SEPTEMBER 2020 18 integrity can become compromised due to manufacturing defects, operational fatigue, or impact damage, necessitating component repair or replacement. Defects, often...
Journal Articles
AM&P Technical Articles (2020) 178 (5): 15–19.
Published: 01 July 2020
...Soumya Mandal; Ritesh Sachan; Amit Pandey This article explains how SEM, TEM, and atom probe tomography are being used in the development of additively manufactured high-entropy alloys (HEAs), revealing critical features such as anisotropic microstructure and metallurgical defects. It also...
Journal Articles
AM&P Technical Articles (2020) 178 (1): 16–21.
Published: 01 January 2020
... micro-inductor smaller than 1 x 1 x 0.5 mm3, serial sectioning was used to determine if failure was due to a manufacturing defect or an isolated result of downstream handling. In this study, electrical failure was diagnosed as resulting from a severed copper wire somewhere within the micro-inductor...
Journal Articles
AM&P Technical Articles (2019) 177 (7): 22–26.
Published: 01 October 2019
... defects and inhomogeneities directly or indirectly during the building process. The BAM project Process Monitoring in Additive Manufacturing (ProMoAM) within the materials subject area aims to develop spectroscopic and NDT methods for in situ evaluation of the quality of additively manufactured metal...
Journal Articles
AM&P Technical Articles (2022) 180 (5): 39–41.
Published: 01 July 2022
...-defect manufacturing httpsdoi.org/10.31399/asm.amp.2022-05.p039 FEATURE iTSSe TSS ACHIEVING ZERO DEFECTS IN THERMAL SPRAY: CULTURE, PROCEDURE AND DIGITALIZATION Developing a disciplined approach to standardizing special processes and introducing new technologies is key to eliminating defects...
Journal Articles
AM&P Technical Articles (2019) 177 (7): 16–21.
Published: 01 October 2019
... for additive manufacturing. This article describes the first phase of the probabilistic machine learning framework that was successfully demonstrated to rapidly define optimum parameter sets for commercial high-temperature nickel superalloys, as well as to guide alloy design and selection for compatibility...
Journal Articles
AM&P Technical Articles (2016) 174 (2): 16–19.
Published: 01 February 2016
... for Microstructure of Materials and Systems IMWS, which includes the Fraun- and electron microscopy, surface and trace analysis, crystallography and optical spectrometry, surface topography essential because these defects are relatively rare but contain important information about the manufacturing hofer Center...
Journal Articles
AM&P Technical Articles (2020) 178 (5): 32–33.
Published: 01 July 2020
... This article is an informal discussion among three industry leaders about how additive manufacturing is impacted by new data-driven technologies. The panelists are Elizabeth A. Holm, James C. Williams, and Edward D. Herderick; the discussion is moderated by Hanchen Huang. The discussion...
Journal Articles
AM&P Technical Articles (2021) 179 (1): 38–41.
Published: 01 January 2021
... used to manufacture aluminum alloy wheels. Casting imparts moderate mechanical properties good enough to meet the needs of most wheels while the rate of finished products with few defects is high, and the cost is low. Wheels produced by forging feature high mechanical properties, including tensile...
Journal Articles
AM&P Technical Articles (2016) 174 (1): 18–21.
Published: 01 January 2016
... and examined. Visual inspection revealed no defects. CONCLUSIONS Additive manufacturing was an ideal process for making these vent assemblies because it reduced individual part count and eliminated mesh welding. It also improved the material buy-to-fly ratio because the previous design included machining...
Journal Articles
AM&P Technical Articles (2018) 176 (6): 51–52.
Published: 01 September 2018
... Researchers at the Center for Heat Treating Excellence (CHTE) at Worcester Polytechnic Institute (WPI) are working with CHTE members to develop post-processing parameters to enhance the mechanical properties of additively manufactured (AM) steels. This article reports preliminary results based...
Journal Articles
AM&P Technical Articles (2015) 173 (9): 29–31.
Published: 01 October 2015
... Parts Quality Problems in Major Programs. The GAO document notes that most parts quality problems are associated with electronic versus mechanical parts or materials, and they result from poor workmanship, undocumented and untested manufacturing processes, poor control of those processes...
Journal Articles
AM&P Technical Articles (2021) 179 (5): 20–23.
Published: 01 July 2021
... & PROCESSES | JULY/AUGUST 2021 DIFFERENCES IN DEFECT DISTRIBUTION ACROSS SCAN STRATEGIES IN ELECTRON BEAM AM Ti-6Al-4V The fraction and size of pores present in EBM Ti-6Al-4V specimens varies depending on the melting strategy used, whether linear raster melting or point melting. Maria J. Quintana, Iowa State...
Journal Articles
AM&P Technical Articles (2014) 172 (10): 25–27.
Published: 01 October 2014
...Tom Adams Physical cross-sectioning is commonly used on parts to reveal and study their internal features and defects. An alternative technology, acoustic cross-sectioning, produces equivalent results and images for small parts without damaging them. This article describes a new system for acoustic...
Journal Articles
AM&P Technical Articles (2018) 176 (6): 26–29.
Published: 01 September 2018
... by manufacturing anomalies, service or environmental stresses, or natural material aging. More generally, applications may include estimation of mechanical and material properties, stress/strain, and dynamic response behavior. NDE comprises a large family of specific test disciplines including visual inspection...
Journal Articles
AM&P Technical Articles (2019) 177 (5): 16–21.
Published: 01 July 2019
... is of special interest due to the capacity for self-assembly and multifunctionality, with the added benefit of higher actuation capability. *Member of ASM International Additive manufacturing (AM) or 3D printing is a manufacturing technique in which complex geometries can be fabricated in a layer-by-layer...
Journal Articles
AM&P Technical Articles (2024) 182 (4): 14–20.
Published: 01 May 2024
.... 6. A. Caggiano, et al., Machine Learning-based Image Processing for ADVANCED MATERIALS & PROCESSES | MAY/JUNE 2024 20 On-line Defect Recognition in Additive Manufacturing, CIRP Ann., 68(1), p 451 454, 2019. 7. [Sasidhar 2022] httpswww.nature.com/articles/s41529-022-00281-x. 8. [Nyby 2021...
Journal Articles
AM&P Technical Articles (2023) 181 (1): 23–31.
Published: 01 January 2023
... possible defect locations, and expanding the library of available materials. Both CNC machining and additive manufacturing are methods that are primarily for shape making. Plastic deformation is the other obvious way to make shapes and thermomechanical processing, which also involves deformation, is our...
Journal Articles
AM&P Technical Articles (2014) 172 (10): 17–19.
Published: 01 October 2014
... spectra of a test sample to those obtained from a standard, it is possible to infer the causes of the differences (if any) and detect various part defects, such as size variations, cracks, and pores. Thanks to advances in computer technology, codes and software are now available for data reduction...