Method for polishing polyamide objects obtained by additive manufacturing or 3D printing techniques

The present invention refers to a method for polishing polyamide objects obtained by additive manufacturing or 3D printing techniques, which comprises immersion of the polyamide object in a mixture of formic acid and dichloromethane at room temperature for a period of time comprised between 5 second...

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Bibliographische Detailangaben
Hauptverfasser:	Alonso Almirall, Oscar, Aubouy, Laurent, Morillo Martín, Diego, Galindo Anguera, Magí, Amantia, David, Faccini, Mirko
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention refers to a method for polishing polyamide objects obtained by additive manufacturing or 3D printing techniques, which comprises immersion of the polyamide object in a mixture of formic acid and dichloromethane at room temperature for a period of time comprised between 5 seconds and 6 minutes. This method allows effectively elimination or reduction of the roughness of the polyamide objects obtained by additive manufacturing or 3D printing techniques, for example, obtained by techniques such as the Selective Laser Sintering (SLS) with a simple procedure which does not require neither high temperatures nor extended treatment times. The present invention also refers to the object obtainable according to such method.