Browsing by Subject "fiber laser"

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    Low Temperature Laser Sintering of PA Powder Using Fiber Laser
    (University of Texas at Austin, 2016) Yamauchi, Yuki; Kigure, Takashi; Niino, Toshiki
    Low temperature process is a novel plastic laser sintering process having potential for improving powder recyclability dramatically. Although fiber laser has been rarely used for plastic laser sintering in commercial base, its ability of being focused in a very small spot suits it to improve precision of plastic laser sintering. In this research, low temperature laser sintering using fiber laser was tested. The highest part density of 99% was obtained while standard high temperature process can provide only 81%. Although generation of fume, which is a major problem in low temperature process using CO2 laser, is not suppressed, it did not affect quality of parts. Part density was strongly affected by slice size of parts and improved when the size is reduced.