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Search Publications

NIST Authors in Bold

Displaying 776 - 800 of 2183

Post-process machining of additive manufactured stainless steel

April 29, 2015
Author(s)
Brandon M. Lane, Shawn P. Moylan, Eric P. Whitenton
Due to the poorer surface finish and geometric accuracy of additive manufactured (AM) parts compared to machined parts, it is inevitable that parts fabricated through AM processes will require post-process machining. This problem was identified early by

Performance Measurement of Mobile Manipulators

April 24, 2015
Author(s)
Roger V. Bostelman, Tsai Hong Hong, Jeremy A. Marvel
This paper describes a concept for measuring the reproducible performance of mobile manipulators to be used for assembly or other similar tasks. An AGV with an onboard robot arm was programmed to repeatedly move to and stop at a novel, reconfigurable

The role of standards in MEMS commercialization

April 1, 2015
Author(s)
Michael Gaitan
For many years, the development, creation and use of standards has played a valuable role in the successful commercialization of products, services and processes that address many industries and many applications. So it is with microelectromechanical

Characterizing Task-Based Human-Robot Collaboration Safety in Manufacturing

February 27, 2015
Author(s)
Jeremy A. Marvel, Joseph A. Falco, Ilari Marstio
A new methodology for describing the safety of human-robot collaborations is presented. Taking a task-based perspective, a risk assessment of a collaborative robot system safety can be evaluated offline during the initial design stages. This risk

Effects of wafer noise on the detection of 20 nm defects using optical volumetric inspection

February 11, 2015
Author(s)
Bryan M. Barnes, Francois R. Goasmat, Martin Y. Sohn, Hui Zhou, Andras Vladar, Richard M. Silver
Patterning imperfections in semiconductor device fabrication may either be noncritical [e.g., line edge roughness (LER)] or critical, such as defects that impact manufacturing yield. As the sizes of the pitches and linewidths decrease in lithography

Thermographic and FE Simulation of the DMLS Process at NIST

February 4, 2015
Author(s)
Brandon M. Lane, Li Ma, Shawn P. Moylan, M A. Donmez, Eric P. Whitenton, Daniel J. Falvey
A major effort of the Measurement Science for Additive Manufacturing Program at NIST is to provide high quality, well-defined temperature measurement of the DMLS process to support and validate multi-physics simulations. However, the dynamic, complex

A Semantic Framework for Modeling and Simulation of Cyber-physical Systems

December 30, 2014
Author(s)
Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn
This paper describes a new semantic platform infrastructure for model-based systems engineering, requirements traceability, and system simulation and assessment of cyberphysical systems (CPSs). When fully developed this environment will support the

Product Data Sheet Ontology

December 18, 2014
Author(s)
Binyam G. Abeye, Edward J. Barkmeyer Jr., Peter O. Denno
Data exchange transactions for the engineering, procurement, and operation of process equipment depend heavily on product data sheets. Product data sheets are traditional paper forms that serve as the main method of communicating detailed equipment

DATA ANALYTICS USING SIMULATION FOR SMART MANUFACTURING

December 11, 2014
Author(s)
Guodong Shao, Sanjay Jain, Seungjun Shin
Manufacturing organizations are able to accumulate large amounts of plant floor production and environmental data due to advances in data collection, communications technology, and use of standards. The challenge has shifted from collecting a sufficient

VIRTUAL FACTORY REVISITED FOR MANUFACTURING DATA ANALYTICS

December 11, 2014
Author(s)
Sanjay Jain, Guodong Shao
Development of a data analytics application for manufacturing is best when tested with large sets of data. It is usually difficult for application developers to find access to real manufacturing data streams for testing new data analytics applications

Costs and Cost Effectiveness of Additive Manufacturing

December 4, 2014
Author(s)
Douglas Thomas, Stanley W. Gilbert
The use of additive manufacturing has increased significantly in previous years. Additive manufacturing is used by multiple industry subsectors, including motor vehicles, aerospace, machinery, electronics, and medical products. Currently, however, additive
Displaying 776 - 800 of 2183
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