Build direction effects on additively manufactured channels

Jacob C. Snyder, Curtis K. Stimpson, Karen Ann Thole, Dominic Mongillo

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    With the advance of direct metal laser sintering (DMLS), also generically referred to as additive manufacturing (AM), novel geometric features of internal channels for gas turbine cooling can be achieved beyond those features using traditional manufacturing techniques. There are many variables, however, in the DMLS process that affect the final quality of the part. Of most interest to gas turbine heat transfer designers are the roughness levels and tolerance levels that can be held for the internal channels. This study investigates the effect of DMLS build direction and channel shape on the pressure loss and heat transfer measurements of small-scale channels. Results indicate that differences in pressure loss occur between the test cases with differing channel shapes and build directions, while little change is measured in heat transfer performance.

    Original languageEnglish (US)
    Article number051006
    JournalJournal of Turbomachinery
    Volume138
    Issue number5
    DOIs
    StatePublished - May 1 2016

    Fingerprint

    Sintering
    Heat transfer
    Gas turbines
    Lasers
    3D printers
    Metals
    Surface roughness
    Cooling

    All Science Journal Classification (ASJC) codes

    • Mechanical Engineering

    Cite this

    Snyder, Jacob C. ; Stimpson, Curtis K. ; Thole, Karen Ann ; Mongillo, Dominic. / Build direction effects on additively manufactured channels. In: Journal of Turbomachinery. 2016 ; Vol. 138, No. 5.
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    Build direction effects on additively manufactured channels. / Snyder, Jacob C.; Stimpson, Curtis K.; Thole, Karen Ann; Mongillo, Dominic.

    In: Journal of Turbomachinery, Vol. 138, No. 5, 051006, 01.05.2016.

    Research output: Contribution to journalArticle

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