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US 9,682,166 B2Granted
Additive manufacturing powder and method of manufacturing the same
AssigneeRicoh Company, Ltd.
InventorMasaki Watanabe
Life of this patent
Estimating the term…
Abstract
Additive manufacturing powder contains a core-shell type particle containing a core particle comprising a first binder resin and a filler and a shell present on the surface of the core particle. The shell contains a second binder resin. The powder has a particle size distribution Dv/Dn of 1.5 or less and an average circularity of from 0.800 to 0.980, the average circularity being represented by the following relation: Average circularity=(a perimeter of a circle having the same area as a projected image of a particle)/(the perimeter of the projected image of the particle)×100.
Claims15
An additive manufacturing powder comprising:
- a core-shell type particle comprising
- a core particle comprising a first binder resin and a filler and
- a shell present on a surface of the core particle, the shell comprising a second binder resin,
- wherein the powder has a particle size distribution Dv/Dn of 1.5 or less where Dv is the volume average particle diameter and Dn is the number average particle diameter and an average circularity of 0.800 to 0.980,
- and wherein the additive manufacturing powder satisfies a relation:
- 0.2≦A/B<0.8, where A represents a volume average particle diameter of the filler and B represents a volume average particle diameter of the powder.
3 more elements
Dependencies are inferred from the claim text.