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Displaying 1 - 25 of 1918

In situ absorption synchrotron measurements, predictive modeling, microstructural analysis, and scanning probe measurements of laser melted Ti-6Al-4V single tracks for additive manufacturing applications

December 29, 2021
Author(s)
Nicholas Derimow, Edwin Schwalbach, Jake Benzing, Jason Killgore, Aly Artusio-Glimpse, Nik Hrabe, Brian Simonds
In this work, the fundamental processing-structure-property (PSP) relationships that govern laser-based additive manufacturing were investigated with the Ti-6Al-4V alloy. X-ray synchrotron imaging carried out in conjunction with in-situ integrating sphere

Circular Economy in the High-Tech World Workshop Report

December 14, 2021
Author(s)
Martin L. Green, Kelsea Schumacher
The National Institute of Standards and Technology (NIST) held a Technical Workshop on January 27 and 28, 2021 to assess the state and challenges of a Circular Economy (CE) in the High-Tech World. Scientists, researchers, and program managers in the CE

Experiments to Test the A-UGV Capabilities Standard

December 8, 2021
Author(s)
Soocheol Yoon, Roger V. Bostelman, Ann Virts
Automatic, Automated, or Autonomous - Unmanned Ground Vehicles (A-UGVs), as referred to by ASTM International Committee F45, are industrial vehicles that have capabilities to navigate, dock, avoid obstacles, and interact with other vehicles and systems all

Sintered powder oxidation variation as a function of build height for titanium alloy produced by electron beam powder-bed fusion

November 26, 2021
Author(s)
Nicholas Derimow, Alejandro Romero, Aldo Rubio, Cesar Terrazas, Francisco Medina, Ryan Wicker, Nik Hrabe
It is well-established that titanium alloy (Ti-6Al-4V) powder oxidizes during electron beam powder-bed fusion (PBF-EB) due to the high background temperatures resulting from layer preheating and sintering of the powder bed before melting. However, it is

Evaluation of a Modified Void Descriptor Function to Uniquely Characterize Pore Networks and Predict Fracture Location in Additively Manufactured Metals

November 15, 2021
Author(s)
Dillon Watring, Jake Benzing, Orion Kafka, Li-Anne Liew, Newell Moser, John Erickson, Nik Hrabe, Ashley Spear
Variations in additive manufacturing (AM) processing parameters can lead to variations in porosity, making it challenging to predict pore- or void-sensitive mechanical response in AM metals. A recently developed pore metric, the void descriptor function

Manufacturing USA Highlights Report

November 5, 2021
Author(s)
Zahraha Brunner, Frank W. Gayle
A summary of technology innovation and workforce development projects by the Manufacturing USA network for FY 2020.

Annual Report on U.S. Manufacturing Industry Statistics: 2021

October 29, 2021
Author(s)
Douglas Thomas
This report provides a statistical review of the U.S. manufacturing industry. There are three aspects of U.S. manufacturing that are considered: (1) how the U.S. industry compares to other countries, (2) the trends in the domestic industry, and (3) the

Cognitive Automation and its Impact on Additive Manufacturing

October 27, 2021
Author(s)
Albert T. Jones, Zhuo Yang, Yan Lu
The English word manufacturing firstly appeared in 1683 and it was derived from Latin manu factus, meaning making by hand. For more than thousands of years now, and four Industrial Revolutions, the physical, and mostly mechanical processes, associated with

STEP File Analyzer and Viewer User Guide (Update 7)

October 13, 2021
Author(s)
Robert R. Lipman
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

SHARING STANDARDIZED COMPOSITE MATERIAL DESIGN AND MANUFACTURING INFORMATION

September 1, 2021
Author(s)
Allison Barnard Feeney, Keith A. Hunten
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

Assessing Industrial Robot agility through international competitions

August 31, 2021
Author(s)
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

Quantifying Machining Process Inventories In Detailed Design

August 24, 2021
Author(s)
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

Visualizing Model-based Product Definitions in Augmented Reality

August 23, 2021
Author(s)
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

Ultraviolet Radiation Technologies and Healthcare Associated Infections: Standards and Metrology Needs

August 20, 2021
Author(s)
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

Advancing the Accuracy of Computational Models for Double-sided Incremental Forming

July 11, 2021
Author(s)
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

Agility Metrics in the ARIAC Competition

July 10, 2021
Author(s)
Anthony Downs, Zeid Kootbally, Craig I. Schlenoff
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

Adapting natural language processing for technical text

June 29, 2021
Author(s)
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
Displaying 1 - 25 of 1918