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digital twins

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Journal Articles
AM&P Technical Articles (2018) 176 (1): 23–26.
Published: 01 January 2018
... analytics, artificial intelligence (machine learning and deep learning), blockchain, digital thread and digital twins, Internet of Things (IoT) or Industry 4.0, additive manufacturing, electric vehicles, and autonomous vehicles. An in-depth understanding of technology trends not only keep materials...
Journal Articles
AM&P Technical Articles (2018) 176 (2): 43.
Published: 01 February 2018
... through a technology roadmap, which is discussed and updated with CSAM members, following several research axes: By combining cold spray digital twinning with advanced robot programming (A and B), it is possible to build 3D structures using cold spray without any masking, i.e., copper cooling fins (C...
Journal Articles
AM&P Technical Articles (2024) 182 (5): 50–52.
Published: 01 July 2024
... technologies to cold spray. Virtual twins, digital twins, augmented reality, and automated toolpaths have emerged as revolutionary paradigms to enhance and redefine processes to achieve optimum cold spray technology. The ability to capture and exploit data enables highly flexible and reconfigurable production...
Journal Articles
AM&P Technical Articles (2020) 178 (5): 32–33.
Published: 01 July 2020
... I don t see is tying those to actual creation of defects. And because of the digital twin value chain, from in-process monitoring, the first time quality inspection, like in an X-ray CT, you would do in a factory with, for example, a turbine blade. Detailed first-time inspections to define a process...
Journal Articles
AM&P Technical Articles (2013) 171 (4): 21–24.
Published: 01 April 2013
...M. Kimiecik; J.W. Jones; S. Daly Researchers at the University of Michigan are investigating the complex heterogeneous phase transformations associated with deformation in shape memory alloys by means of in-situ tensile loading in combination with SEM, EBSD, and digital image correlation...
Journal Articles
AM&P Technical Articles (2024) 182 (3): 13–19.
Published: 01 April 2024
..., and rationalize these requirements and standards. Establish standards for machine data output and data logging requirements. Establish standards for AM machine preventative maintenance and maintenance and control plans. Develop a digital twin model of AM machines for build status, health monitoring...
Journal Articles
AM&P Technical Articles (2024) 182 (1): 14–17.
Published: 01 January 2024
..., a database of real images for image recognition through machine learning, and a digital twin of an operating TEM that aids new user training. Customizing HoloMicroscope applications for individual users is also envisioned; given that different users process information differently and different cognitive...
Journal Articles
AM&P Technical Articles (2022) 180 (2): 40–42.
Published: 01 March 2022
... of zinc, but the c/a ratio of zinc allows mechanical twinning in tension and new slip systems, which leads to great ductility (e.g., 50%) in zinc alloys. In contrast, the c/a ratio of magnesium allows only mechanical twinning in compression. Thus, magnesium alloys invariably have low (e.g., less than 10...
Journal Articles
AM&P Technical Articles (2022) 180 (8): 19–23.
Published: 01 November 2022
...% copper and 30% zinc. C26000 was chosen due to the striking twins and large grain size that are easily generated by annealing a cold-worked sample, the large range of contrast and colors that can be created by etching, and the wide availability of the material. This entry won the Jacquet-Lucas Award...
Journal Articles
AM&P Technical Articles (2013) 171 (4): 17–20.
Published: 01 April 2013
... of field is normally shallow, providing a limited area of sharp surface image around the region of interest. The depth-from-defocus (DFD) method introduced in the 1990s[4] helps to solve this problem, enabling visual examination of very rough surfaces using new digital microscopes. Other optical methods...
Journal Articles
AM&P Technical Articles (2023) 181 (4): 28–30.
Published: 01 May 2023
... SCC occurs predominantly along slip planes, also in annealing twins of subsequently worked objects (Fig. 4a). It is important to note that the scales of intergranular and transgranular SCC are different. Figure 4c illustrates that intergranular SCC results in relatively large cracks, and therefore...
Journal Articles
AM&P Technical Articles (2020) 178 (1): 32–34.
Published: 01 January 2020
... characterized by well-formed faces and uniform optical properties when observed under a polarizing microscope. In practice, crystals are often grown under less than ideal conditions and shape, providing only few recognizable faces due to twinning, intergrowth, or other types of defects. Additionally, not all...
Journal Articles
AM&P Technical Articles (2022) 180 (2): 12–15.
Published: 01 March 2022
... of time, ensuring that all areas are visually checked. After the devices have been found, a key is released which allows the inspector to leave the x-ray zone. Physical data collected during testing is used to confirm aspects of engine performance predicted by digital models. To accomplish this, new...
Journal Articles
AM&P Technical Articles (2018) 176 (7): 35–44.
Published: 01 October 2018
... competition winners announced; ASM CEO William Mahoney reports on ASM “crossing the digital divide”; volunteer profile for Andy Frerichs; professional profile for Jessica Enos. News about ASM members, chapters, events, awards, conferences, affiliates, and other society activities. Topics include: ASM...
Journal Articles
AM&P Technical Articles (2014) 172 (7): 20–24.
Published: 01 July 2014
... alumina), and etched using a solution of 100 mL water, 8 mL sulfuric acid, 4 mL sodium chloride, and 2 g potassium perchlorate. For imaging, a Reichart MF4 A/M optical metallograph with digital image converter was (a) (b) 5 µm (c) (d) Fig. 2 Magnified SEM image of powder C section showing high...
Journal Articles
AM&P Technical Articles (2021) 179 (7): 46–49.
Published: 01 October 2021
... through shear stress by the formation of crystal twinning in the material. Heat is released (exothermic) during the A M transformation and is absorbed (endothermic) during the reverse M A transformation. While the names austenite and martensite are derived from the steel phases of the same names to denote...
Journal Articles
AM&P Technical Articles (2022) 180 (4): 49–62.
Published: 01 May 2022
.... Ashlie A. Hamilton University of Minnesota Twin Cities Ashlie Hamilton is an undergradu- ate student at the University of Minne- sota - Twin Cities pursuing a bachelor s degree in materials science and engi- neering. She is currently a research assistant in Professor Nathan Mara s Hamilton lab...
Journal Articles
AM&P Technical Articles (2021) 179 (3): 63–70.
Published: 01 April 2021
..., and the survey suggests that members want greater access to these tools and resources. On that point, I would like to highlight two projects the operations team is working on. For our Digital Library, in addition to the ASM Handbook series, technical books, and failure analysis content already available, we...
Journal Articles
AM&P Technical Articles (2017) 175 (5): 66–78.
Published: 01 July 2017
... month-tomonth. Our digital transformation and content reengineer- ing initiative is developing according to plan, readying ASM for our full digital publishing future. Our bottom line is improving, and we recently received an unmodified opinion from our auditor regarding our 2016 financial reports...
Journal Articles
AM&P Technical Articles (2023) 181 (4): 59–70.
Published: 01 May 2023
... Minnesota Chapter. He is also a board member of the Twin Cities Section of the Society of Tribologists and Lubrication Engineers (STLE) and a technical editor for Tribology & Lubrication Technology. In recent years, he has served as chair of the ASM Technical Books Committee, chair of the ASM Minnesota...