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    Volume 44, Issue 2 (March 2016)

    Special Issue Paper

    Recommended Protocol for Round-Robin Studies in Additive Manufacturing

    (Received 29 July 2015; accepted 9 December 2015)

    Published Online: 2016

    CODEN: JTEVAB

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    Abstract

    One way to improve confidence and encourage proliferation of additive manufacturing (AM) technologies and parts is by generating more high-quality data describing the performance of AM processes and parts. Many in the AM community see round-robin studies as a way to generate large data sets while distributing the cost among the participants, thereby reducing the cost to individual users. The National Institute of Standards and Technology (NIST) has conducted and participated in several of these AM round-robin studies. Whereas the results of these studies are interesting and informative, many of the lessons learned in conducting these studies concern the logistics and methods of the study and unique issues presented by AM. Existing standards for conducting interlaboratory studies of measurement methods, along with NIST's experience, form the basis for recommended protocols for conducting AM round-robin studies. The role of round-robin studies in AM qualification, some of the limitations of round-robin studies, and the potential benefit of less formal collaborative experiments where multiple factors, AM machine being only one, are varied simultaneously are also discussed.


    Author Information:

    Moylan, Shawn
    National Institute of Standards and Technology, Gaithersburg, MD

    Brown, Christopher U.
    National Institute of Standards and Technology, Gaithersburg, MD

    Slotwinski, John
    Johns Hopkins Univ., Applied Physics Laboratory, Laurel, MD


    Stock #: JTE20150317

    ISSN:0090-3973

    DOI: 10.1520/JTE20150317

    Author
    Title Recommended Protocol for Round-Robin Studies in Additive Manufacturing
    Symposium ,
    Committee F42