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Search Publications by: Shaw C Feng (Fed)

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Displaying 26 - 50 of 91

Fundamental Requirements for Data Representations in Laser-based Powder Bed Fusion

June 8, 2015
Author(s)
Shaw C. Feng, Paul W. Witherell, Gaurav Ameta, Duck B. Kim
Additive Manufacturing (AM) processes intertwine aspects of many different engineering-related disciplines, such as powder material metrology, design, in-situ and off-line measurements, control. Due to the increasing complexity of AM systems and processes

Streamlining the Additive Manufacturing Digital Spectrum: A Systems Approach

October 18, 2014
Author(s)
Duck B. Kim, Paul Witherell, Robert R. Lipman, Shaw C. Feng
Additive Manufacturing (AM) provides great potential for industrial manufacturers who require low volume and functional, highly complex end use products. Given AM's potential, numerous research efforts are underway to reduce the time and improve the

Toward Metamodels for Composable and Reusable Additive Manufacturing Process Models

August 12, 2014
Author(s)
Paul W. Witherell, Shaw C. Feng, Timothy Simpson
Despite the existence and interest in additive manufacturing (AM) for many decades, industry adoption of AM technologies has been relatively slow. Recent advances in modeling and simulation of AM processes and materials are providing new insights to help

Feature Information Model for Disassembly

August 20, 2013
Author(s)
Shaw C. Feng
As sustainability becomes an important issue nowadays, disassembly becomes one of the key processes to turn out-of-service products into new or rebuilt products to save energy and materials. A disassembly process includes many subprocesses, such as

Energy Metrics for Product Assembly Equipment and Processes

August 13, 2013
Author(s)
Shaw C. Feng, FNU Kumaraguru, Christopher U. Brown, Boonserm Kulvatunyou
A key factor deciding the capacity to increase the sustainability of final products is the energy efficiency. The energy embodied in a product is an aggregation of all of the energy embodied in the products' components and subsystems, expended through its

Integration of Energy Information for Product Assembly and Logistics Processes

August 13, 2013
Author(s)
Shaw C. Feng, FNU Kumaraguru, Kincho H. Law, Kyeong Rim Ahn
This paper presents an on-going effort at NIST to model the energy performance in assembly and supply chain processes as a part of a larger sus-tainability improvement goal. Energy performance modeling comprises two dis-tinct metrics like energy

Categorization of Indicators for Sustainable Manufacturing

May 9, 2013
Author(s)
Shaw C. Feng, Che B. Joung, Prabir Sarkar, John Carrell
Manufacturers around the globe have become aware of the importance of sustainable manufacturing. They are increasing their efforts to become more sustainable by using sustainability-related indicators to assess their performance; however, in these efforts

Disassembly Process Information Model for Remanufacturing

April 22, 2013
Author(s)
Shaw C. Feng, Hanmin Lee, Thomas R. Kramer, Che B. Joung, Parisa Ghodous, Ram D. Sriram
The disassembly process is an essential activity performed on out-of-service products for remanufacturing. A disassembly process includes many subprocesses, such as separation, cleaning, repair, replacement, and inspection. The main purpose of performing

SUSTAINABLE MANUFACTURING INDICATOR REPOSITORY

May 2, 2011
Author(s)
Shaw C. Feng, Prabir Sarkar, Che B. Joung, John Carrell
Sustainable manufacturing promotes manufacturing processes that minimize environmental and social impacts while maintaining economic benefits. To achieve this, manufacturers seek metrics and measurement methods to enable them to track the progress and

A Framework of Product and Process Metrics for Sustainable Manufacturing

December 1, 2010
Author(s)
T. Lu, A. Gupta, A. D. Jayal, F. Badurdeen, Shaw C. Feng, O. W. Dillon, I. S. Jawahir
This paper presents a framework for developing comprehensive product and process metrics for sustainable manufacturing, using machined products and machining processes examples, and addressing all three aspects of the triple bottom line environment

A Measurement Infrastructure for Sustainable Manufacturing

August 6, 2010
Author(s)
Shaw C. Feng, Che B. Joung
Global resource degradation, climate change, and environmental pollution are worsening due to increasing globalized industrialization. The manufacturing industry has thus been put under pressure to cope with these problems while maintaining competiveness

Development Overview of Sustainable Manufacturing Metrics

February 18, 2010
Author(s)
Shaw C. Feng, Che B. Joung
The manufacturing industry is facing the challenge of measuring sustainability performance in a product s life cycle. Developing metrics for sustainable manufacturing is critical to enable manufacturing companies to quantitatively measure the

Development Overview of an Information Model for Disassembly

December 23, 2009
Author(s)
Shaw C. Feng, Hanmin Lee, Che B. Joung, P. Ghodous
Manufacturing is a fundamental support of an industrialized society. Currently, manufacturing industry is facing major challenges, such as resources depletion, global climate change, environmental pollution, and social well being for the future generations

Carbon Weight Analysis for Machining Operation and Allocation for Redesign

December 16, 2009
Author(s)
Gaurav Ameta, Mahesh Mani, Sudarsan Rachuri, Kevin W. Lyons, Shaw C. Feng, Ram D. Sriram
The objective of this research is to explore and develop a new methodology for computing carbon weight (CW) - often referred to as carbon footprint, in manufacturing processes from the part level to assembly level. In this initial study we focused on

Towards a Multi-View Semantic Model for Product Feature Description

May 28, 2008
Author(s)
Patrick Hoffmann, Shaw C. Feng, Gaurav Ameta, Parisa Ghodous, Lihong Qiao
Multiple perspectives need to be included in a product development process. Engineers from different departments usually have different views on a product design. It is hence necessary to define information structures that support multiple views. We

Nano- and Atomic-Scale Length Metrology

December 14, 2007
Author(s)
Theodore V. Vorburger, Ronald G. Dixson, Joseph Fu, Ndubuisi G. Orji, Shaw C. Feng, Michael W. Cresswell, Richard A. Allen, William F. Guthrie, Wei Chu

The State of Container Security Standards

October 17, 2007
Author(s)
Shaw C. Feng, Simon P. Frechette
As cargo container security is a critical component in the U.S. homeland security, the communication among people in a chain of custody of a container needs to be timely and effective. Since people in the container custody chain often use different

Computational Models of the Nano Probe Tip for Static Behaviors

June 1, 2007
Author(s)
Shaw C. Feng, Theodore V. Vorburger, Che B. Joung, Li Ma
As integrated circuits become smaller and faster, the measurement of line width must have less uncertainty and more versatility. The common requirement for uncertainty is less than 10 nanometers. The industrial need for versatility is three dimensional

Computational Models of the Nana Probe Tip for Static Behaviors (Abstract Only)

February 1, 2007
Author(s)
Shaw C. Feng, Theodore V. Vorburger, Che B. Joung, Joseph Fu, Ronald G. Dixson, Li Ma
As integrated circuits become smaller and faster, the measurement of line width must have less uncertainty and more versatility. The common requirement for uncertainty is less than 10 nanometers. The industrial need for versatility is three dimensional