Hydrodynamic Machining of Fiber-Reinforced Composites

    Volume 18, Issue 2 (April 1996)

    ISSN: 0884-6804

    CODEN: CTROAD

    Page Count: 9


    Chelikani, S
    Research assistant, Yale University, New Haven, CT

    Kalpakjian, S
    Professor, Illinois Institute of Technology, Chicago, IL

    Abstract

    This paper presents the results of an experimental investigation aimed at studying the applicability of waterjet machining to reinforced plastics. Representative samples of plastics over a wide range of matrices and fibers of various thicknesses were chosen. The machined samples were studied under a scanning electron microscope (SEM) for surface characteristics. Some samples were measured for roughness using a stylus profilometer and later non-contact laser holography for confirmation. The SEM study revealed that under conditions of excessive cutting speed, high stand-off distance, low water pressure, small nozzle diameter, which are considered nonoptimum, the surfaces displayed signs of fiber debonding, pull-out, matrix chipping, and delamination. Roughness readings revealed that surface quality improves with larger-diameter nozzles and at low machining speeds.


    Paper ID: CTR10523J

    DOI: 10.1520/CTR10523J

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    Author
    Title Hydrodynamic Machining of Fiber-Reinforced Composites
    Symposium , 0000-00-00
    Committee D30