![]() ![]() Metallurgical mechanisms of pore formation during DMLS were addressed. With the favorable sintering mechanism prevailed, lowering laser power or increasing scan speed, scan line spacing, and powder layer thickness generally led to a higher porosity. ![]() A moderate LED of ∼3400–∼6000 J/m and a lower scan speed less than 0.06 m/s proved to be feasible. Linear energy density (LED), which was defined by the ratio of laser power to scan speed, was used to tailor the laser sintering mechanism. It was found that a partial melting mechanism of powders gave a high feasibility in obtaining porous sintered structures possessing porosities of ∼21–∼55%. In the present work, processing conditions and microstructural characteristics of direct laser sintered porous 316L stainless steel components were studied. ![]() Direct metal laser sintering (DMLS), due to its flexibility in materials and shapes, would be especially interesting to produce complex shaped porous metallic components.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |