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12 June 2014 Infrared imaging of the polymer 3D-printing process
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Abstract
Both mid-wave and long-wave IR cameras are used to measure various temperature profiles in thermoplastic parts as they are printed. Two significantly different 3D-printers are used in this study. The first is a small scale commercially available Solidoodle 3 printer, which prints parts with layer thicknesses on the order of 125μm. The second printer used is a “Big Area Additive Manufacturing” (BAAM) 3D-printer developed at Oak Ridge National Laboratory. The BAAM prints parts with a layer thicknesses of 4.06 mm. Of particular interest is the temperature of the previously deposited layer as the new hot layer is about to be extruded onto it. The two layers are expected have a stronger bond if the temperature of the substrate layer is above the glass transition temperature. This paper describes the measurement technique and results for a study of temperature decay and substrate layer temperature for ABS thermoplastic with and without the addition of chopped carbon fibers.
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Ralph B. Dinwiddie, Vlastimil Kunc, John M. Lindal, Brian Post, Rachel J. Smith, Lonnie Love, and Chad E. Duty "Infrared imaging of the polymer 3D-printing process", Proc. SPIE 9105, Thermosense: Thermal Infrared Applications XXXVI, 910502 (12 June 2014); https://doi.org/10.1117/12.2053425
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