De-powdering of green samples using freezing method for additive manufacturing
AssigneeEntegris, Inc.
InventorsThines Kumar Perumal, Subhash Guddati, Aravind Vasanthakumar, Montray Leavy, Rocky Dean Gipson, Edward A. Sturm
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Abstract
A method for producing an article and a system associated with the method are provided. The method includes providing a green part, cooling the green part to a temperature below the freezing point of the ink to form a hardened mass and loosely-attached powder particles, and removing the loosely-attached powder particles. The green part includes powder particles, an ink, and optionally a binder. The loosely-attached powder particles removed from the green part may be recycled and reused.
Claims20
A method for producing an article, comprising the following steps:
- (a) providing a green part, wherein the green part comprises powder particles, an ink, and optionally a binder;
- (b) cooling the green part to a temperature below the freezing point of the ink to form a hardened mass having loosely-attached powder particles;
- (c) de-powdering the hardened mass to remove the loosely-attached powder particles from the hardened mass;
- and
- (d) collecting the loosely-attached powder particles that are removed from the hardened mass.
Dependencies are inferred from the claim text.