Binder jetting additive manufacturing of high porosity 316L stainless steel metal foams
High porosity (40% to 60%) 316L stainless steel containing well-interconnected open-cell
porous structures with pore openness index of 0.87 to 1 were successfully fabricated by
binder jetting and subsequent sintering processes coupled with a powder space holder
technique. Mono-sized (30 µm) and 30%(by volume) spherically shaped poly (methyl
methacrylate)(PMMA) powder was used as the space holder material. The effects of
processing conditions such as:(1) binder saturation rates (55%, 100% and 150%), and (2) …
porous structures with pore openness index of 0.87 to 1 were successfully fabricated by
binder jetting and subsequent sintering processes coupled with a powder space holder
technique. Mono-sized (30 µm) and 30%(by volume) spherically shaped poly (methyl
methacrylate)(PMMA) powder was used as the space holder material. The effects of
processing conditions such as:(1) binder saturation rates (55%, 100% and 150%), and (2) …
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