Lamination molding resin-coated sand and lamination molding method using resin-coated sand

Abstract

Lamination molding resin-coated sand which can advantageously enhance accuracy for a formed article, is lamination molding resin-coated sand used for lamination molding for forming an article by laminating sand layers in thickness direction. Sand particles coated with resin are 20 to 100 μm in diameter and generally spherical. The resin has a mean molecular weight of about 2000 to 10000 and a fusion temperature of 100° C. or higher.

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