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Manufacturing

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Displaying 101 - 125 of 2174

American Competitiveness Of a More Productive Emerging Tech Economy Act (The American COMPETE Act)

August 11, 2023
Author(s)
Commerce Secretary, Kevin A. Kimball, Matthew Hoehler, Anne Lane, Elham Tabassi, Marie LaSalle, Kevin Jurrens, Mark VanLandingham, James Warren, Naomi Lefkovitz, Nada Golmie, Chris Greer, Matthew Scholl, Dylan Yaga, Andrew C. Wilson, Kevin Stine, Karen Reczek, Institute for Defense Analyses Science and Technology Policy Institute (IDA STPI), Quantum Economic Development Consortium (QED-C), Federal Trade Commission (FTC)
Under DIVISION FF, Title XV, §1501 of the Consolidated Appropriations Act of 2021 (Public Law 116-260)—the "American Competitiveness Of a More Productive Emerging Tech Economy Act" (the "American COMPETE Act")—the United States Congress directed the

Fundamentals of Geometric Dimensioning and Tolerancing, Part II

August 10, 2023
Author(s)
Jaime Berez, Maxwell R. Praniewicz
This 45-60 minute presentation (part II of II) provides a contextual and technical introduction to the fundamentals of geometric dimensioning and tolerancing (GD&T), a system used in engineering product definition, i.e., engineering drawings. This

Design and Implementation of a Closed-Loop Mobile Manipulator Control System

July 28, 2023
Author(s)
Omar Aboul-Enein, Ya-Shian Li-Baboud, Roger Bostelman, Ann Virts
Mobile manipulators, which integrate a robotic manipulator with an automatic--autonomous mobile base, have the potential to augment automation by combining the capability of navigation with complex manipulation to support unstructured and dynamic

Enabling FAIR Data in Additive Manufacturing to Accelerate Industrialization

July 24, 2023
Author(s)
Shengyen Li, Yan Lu, Kareem Aggour, Peter Coutts, Brennan Harris, Alex Kitt, Afina Lupulescu, Luke Mohr, Mike Vasquez
Additive manufacturing (AM) is an important enabler of Industry 4.0 but there are several hurdles that need to be overcome to fully realize the potential of AM. These challenges include the need for a data infrastructure to enable the scaling of the

Standards as Enablers for a Circular Economy

June 30, 2023
Author(s)
KC Morris, Vincenzo Ferrero, Buddhika Hapuwatte, Noah Last, Nehika Mathur
A successful transition to a circular economy (CE) will require global participation, but the path to that transition will follow many unique routes depending on local situations. The transition must have rigorous technical underpinnings and well-conceived

Data Formats in Additive Manufacturing

June 1, 2023
Author(s)
Paul Witherell
Data formats play an integral role in leveraging the flexibility of additive manufacturing and achieving consistent part quality. This article compares and contrasts data formats optimized for design, materials, processes, and inspection methods. It also

Towards a Markerless 3D Pose Estimation Tool

April 28, 2023
Author(s)
Amaan Rahman, Mili Shah, Ya-Shian Li-Baboud, Ann Virts
Evaluation of exoskeleton performance benefts from standards to verify proper functionality and safety. Currently, there are limited evaluation methods for exoskeletons. Measurement methods to evaluate human-exoskeleton kinematics include optical tracking

Bearing area curve based partitioning for the verification of theoretical supplemental geometry on additively manufactured lattice structures

April 25, 2023
Author(s)
Maxwell R. Praniewicz, Jason Fox, Lucas Fournet-Fayard, Charles Cayron, Imade Koutiri, Anne-Francoise Obaton
The geometrical qualification of additively manufactured lattice structures has largely focused on the measurement of strut diameter, form variations, and surface texture. However, the exterior surfaces of the lattice structure, defined through theoretical

Machine tool calibration: Measurement, modeling, and compensation of machine tool errors

April 20, 2023
Author(s)
Wei Gao, Soichi Ibaraki, Alkan Donmez, D. Kono, J.R.R Mayer, Yuan-Liu Chen, Karoly Szipka, Andreas Archenti, Jean-Marc Linares, N. Suzuki
Advanced technologies for the calibration of machine tools are presented. Kinematic errors independently of their causes are classified into errors within one-axis as intra-axis errors, errors between axes as inter-axis errors, and as volumetric errors. As

Vision-based thermal drift monitoring method for machine tools

April 15, 2023
Author(s)
Gregory W. Vogl, Ainsley Rexford, Zongze Li, Robert Landers, Edward Kinzel, Alkan Donmez, Joe Chalfoun
A method is presented to measure machine tool thermal drift for error compensation. A wireless microscope within a tool holder in the spindle is used to capture videos of image targets attached to the worktable. For each target, one video is captured

A high-strength precipitation hardened cobalt-free high-entropy alloy

April 12, 2023
Author(s)
Matthew Luebbe, Jiaqi Duan, Fan Zhang, Jonathan Poplawsky, Hans Pommeranke, Maalavan Arivu, Andrew Hoffman, Haiming Wen
Recent studies on precipitation-hardened high-entropy alloys (HEAs) demonstrate their high strength and thermal stability, making them promising materials for high-temperature structural applications such as nuclear reactors. However, many existing HEAs

Security Segmentation in a Small Manufacturing Environment

April 6, 2023
Author(s)
Michael Powell, John Hoyt, Aslam Sherule, Lynette Wilcox
Manufacturers are increasingly targeted in cyber-attacks. Small manufacturers are particularly vulnerable due to limitations in staff and resources to operate facilities and manage cybersecurity. Security segmentation is a cost-effective and efficient

Solidification modes during additive manufacturing of steel revealed by high-speed X-ray diffraction

March 1, 2023
Author(s)
Hans-Henrik Konig, Niklas Hollander Pettersson, A Durga, Steven Van Petegem, Daniel Grolimund, Qilin Guo, Chihpin Chuang, lianyi Chen, Christos Oikonomou, Fan Zhang, Greta Lindwall
Solidification during fusion-based additive manufacturing (AM) is characterized by high solidification velocities and high thermal gradients, two factors that control the solidification mode of AM metals and alloys. Using two synchrotron-based, in situ
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