Abstract
The fabrication conditions of titanium powder were investigated using a selective laser sintering machine which has a 50 W Yb-fiber laser, a galvanometer scanner and a powder delivery and build system. The optimum laser power, scan speed and scan pitch were investigated by experiments. It was found that the smooth single-scan track can be fabricated at a laser power between 30 and 40 W and at a scan speed between 5 and 10 mm/s, and the width of the smooth single-scan track is around 450 [tm. The smooth surface could be successfully fabricated at a laser power more than 30 W.
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