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Thermography and Weld Strength Characterization of Thermoplastic Extrusion 3D Printing



Jonathan E. Seppala, Kaitlyn E. Hillgartner, Chelsea S. Davis, Kalman D. Migler


In fused filament fabrication (FFF), a material extrusion additive manufacturing (AM) method, thermoplastic filament is extruded though a rastering nozzle on prior layers building a 3 dimensional object. The resulting strength of the FFF produced part is limited by the strength of the weld between each layer. While numerous factors can affect the weld strength, the temperatures of the extrudate and the previous layer dictate the amount of interdiffusion and thus the weld strength. To investigate the relationship between the FFF processing conditions, extruder temperature and feed rate, and final build strength, infrared cooling profiles and weld fracture strengths are compared.
Proceedings Title
Conference Dates
May 23-25, 2016
Conference Location
Indianapolis, IN


additive manufacturing, polymer, thermography, mode III fracture, FDM, FFF


Seppala, J. , Hillgartner, K. , Davis, C. and Migler, K. (2016), Thermography and Weld Strength Characterization of Thermoplastic Extrusion 3D Printing, SPE ANTEC 2016, Indianapolis, IN (Accessed April 19, 2024)
Created May 23, 2016, Updated February 19, 2017