レーザ照射条件が積層造形物の構造と機械的性質に及ぼす影響

抄録

Selective laser sintering (SLS) is a rapid prototyping technique that allows us to produce complex three-dimensional parts from CAD models by sintering successive thin layers of powder with a laser beam. In this research, the following four parameters were experimentally investigated, laser power, laminate thickess, scanning speed and sweep spacing, to check the most suitable processing conditions. And our test pieces were cubic in shape with a side length of 5mm. The mechanical characteristics of the cubes were tested by compression test, and their structures were examined by SEM. The laminated thickness gives a large effect on the mechanical properties of the test pieces. There was a correlation between the laminate thickness and the void density.