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Many additive manufacturing (AM) processes are driven by a moving heat source. Thermal field evolution during the manufacturing process plays an important role in determining both geometric and mechanical properties of the fabricated parts. Thermal
Unmelted titanium alloy (Ti-6Al-4V) feedstock powder oxidizes during powder-bed fusion (PBF) additive manufacturing (AM), which limits the useful lifetime of a batch of powder and affects the overall AM process cost. Critical understanding of key factors
The STEP File Analyzer and Viewer opens a STEP (ISO 10303 - STandard for Exchange of Product model data) Part 21 file and (1) generates a spreadsheet or CSV files of all entity and attribute information, (2) creates a visualization (view) of part geometry
Metal additive manufacturing provides a larger design space with accompanying manufacturability than traditional manufacturing. Recently, much research has focused on simulating the process with regards to part geometry, porosity, and microstructure
Pandemic of 2019 brought on many challenges. Sustaining manufacturing production is one of them. Some market segments may experience reductions in demands, while other market segments may experience explosions. Companies have to deal with these changing
Composite structures have been developed for use in aerospace, automotive, sports and marine industries since the early 1940s. Compared to conventional metallic structures, high-performance composite structures provide benefits such as decreased weight and
Anthony Downs, Zeid Kootbally, William Harrison, Pavlo Piliptchak, Brian Antonishek, Murat Aksu, Craig I. Schlenoff
Manufacturing and Industrial Robotics have reached a point where in order to be more useful to small and medium sized manufacturers, the systems must become more agile and able to adapt to changes in the environment. This paper describes the process for
William Z. Bernstein, Till Boettjer, Deverajan Ramanujan
This paper quantifies machining process inventories based on commonly used techniques in various stages of the detailed design process. We investigate variabilities in process inventories between these techniques and their relation to manufacturing process
Teodor Vernica, Robert R. Lipman, William Z. Bernstein
Augmented reality (AR) technologies present immense potential for the design and manufacturing communities. However, coordinating traditional engineering data representations into AR systems without loss of context and information remains a challenge. A
Dianne L. Poster, C Cameron Miller, Richard Martinello, Norman Horn, Michael T. Postek, Troy Cowan, Yaw S. Obeng, John J. Kasianowicz
The National Institute of Standards and Technology (NIST) hosted an international workshop on ultraviolet-C (UV-C) disinfection technologies on January 14 – 15, 2020 in Gaithersburg, Maryland in collaboration with the International Ultraviolet Association
Yosep Oh, Michael Sharp, Timothy A. Sprock, Soonjo Kwon
Additive Manufacturing (AM) has brought positive opportunities with phenomenal changes to traditional manufacturing. Consistent efforts and novel studies into AM use have resolved critical issues in manufacturing and broadened technical boundaries. Build
Michael Sharp, Thomas D. Hedberg Jr., William Z. Bernstein, Soonjo Kwon
Engineering change is a non-value-added activity that happens as a product progresses through its lifecycle. Engineering change is a significant cost sink in many projects. While avoiding and mitigating the risk of change is the ideal approach, mistakes
Boonserm Kulvatunyou, David Romero, Gregor V. Cieminski, Paolo Gaiardelli, Ilkyeong Moon, Giuditta Pezzotta, Stefan Wiesner, Marco Macchi, Jannicke B. Hauge, Irene Roda, Daryl Powell, Torbj?rn Netland, Nick Szirbik, Christoph Roser, Erlend Alfnes, Martin Rudberg
Since its inception in 1978, the IFIP Working Group 5.7 on Advances in Production Management Systems (APMS) has played an active role in the conception, development, and application of innovative strategies, frameworks, architectures, processes, methods
Microstructural and tensile test data are becoming increasingly available and important in additive manufacturing (AM). These data can be used as inputs to a variety of data-analytics tools, outputs from which can be used to ensure the part's quality and
Nenad Ivezic, Boonserm Kulvatunyou, Elena Jelisic, Hakju Oh, Simon P. Frechette, Vijay Srinivasan
It is generally observed in inter-organizational communication that present-day data exchange standards are too costly and too complex to develop and use. These problems in data exchange are felt keenly by manufacturing industry with its vast supply chains
Nathan Castro, Greta Babakhanova, Jerry Hu, Kyriacos Athanasiou
Traditional testing methods have helped to elucidate and correlate the structure-function relationship of natural tissues and have guided the development of promising tissue-engineered medical products. From a manufacturing standpoint, such assays have
Aaron M. Hanke, Teodor Vernica, William Z. Bernstein
Interoperability across emerging visualization modalities, including augmented reality (AR) and virtual reality (VR), remains a challenge with respect to industrial applications. One critical issue relates to the lack of standard approaches for
The Manufacturing USA Program's 2019 reauthorization allows the National Institute of Standards and Technology (NIST) to renew Manufacturing USA institute support, subject to a "rigorous merit review." Following an initial five to seven-year cooperative
Newell Moser, Dohyun Leem, Liao Shuheng, Kornel Ehmann, Jian Cao
Double-Sided Incremental Forming (DSIF) is a rapid-prototyping manufacturing process for metal forming that, for low-volume production, is competitively energy-efficient. However, controlling the DSIF process in terms of accuracy and formability is an
A thriving manufacturing sector is the essential heart of a vibrant and balanced economy in the United States(U.S.). Small and medium manufacturers (SMMs) constitute an important sector in the U.S. manufacturing but they are currently facing an increasing
The Manufacturing USA Program's 2019 reauthorization allows the National Institute of Standards and Technology (NIST) to renew Manufacturing USA institute support, subject to a "rigorous merit review." Following an initial five to seven-year cooperative
Anna Conte, Coline Bolland, Lynn Phan, Michael Brundage, Thurston Sexton
Historical data from maintenance work orders (MWOs) is a powerful source of information to improve maintenance decisions and procedures. However, data quality often impacts an analyst's ability to calculate important Key Performance Indicators (KPIs) and
Often in manufacturing systems scenarios arise where the demand for maintenance exceeds the capacity of maintenance resources. This leads to the problem of allocating the limited resources among machines competing for them. This maintenance scheduling
Alden A. Dima, Sarah Lukens, Melinda Hodkiewicz, Thurston Sexton, Michael Brundage
Despite recent dramatic successes, Natural Language Processing (NLP) is not ready to address a variety of real-world problems. Its reliance on large standard corpora, a training and evaluation paradigm that favors the learning of shallow heuristics, and