Development of material in the form of filament of the ABS type for use in FDM rapid prototyping machines

• Grant number: 03/07985-0
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: December 01, 2003
• End date: August 31, 2004
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Sergio Luiz Dulcini
• Grantee: Sergio Luiz Dulcini
• Company: Oriel Indústria e Comércio Ltda. - ME

Abstract

The submitted proposal aims at the development of consumable materials used in rapid prototyping machines of the FDM type, with the aim of reducing the cost of making prototypes in Brazil and abroad. The project involves the characterization of the material through the following analyses over an ABS filament: infrared spectroscopy, capillary rheometry, permeable gel filtration chromatography, diffractogram of inorganic charges, thermogravimetric analysis, dynamic-mechanical analysis, electronic sweeping microscopy, co-rotating twin-screw extrusion and sample preparation in ARBURG injector. Following these analyses, research will be undertaken into materials of the ABS type (Acrylonitrile Butadiene Estirene) commercialized in Brazil and sold in pellets used in mixture which results in a compound with characteristics similar to those of imported ABS. This material will be inserted in a co-rotating extruder with a cylindrical orifice die, so that in the extrusion, a cylindrical filament calibrated at 3 millimeters thickness emerges. This filament will then be fed into the FDM machine in order for prototypes to be made with mechanical and geometrical properties similar to those used by an imported filament. (AU)