Open AccessInfluence of contact geometry over the filament bond of polylactic acid blends
Author(s) -
Vasile Ermolai,
Ashok M. Raichur,
Gheorghe Nagîț
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1235/1/012004
Subject(s) - fused filament fabrication , polylactic acid , fabrication , materials science , thermoplastic , nozzle , protein filament , polymer , composite material , ultimate tensile strength , extrusion , 3d printing , engineering drawing , mechanical engineering , engineering , medicine , alternative medicine , pathology
Fused Filament Fabrication is one of the most common Additive Manufacturing technologies among industrial and domestic users because of the satisfying quality of parts and the great variety of thermoplastic polymers available on the market. New possibilities were provided along with the equipment with multiple extrusion systems, referring to multi-colour and multi-material components. Besides part orientation during the manufacturing process, filament bond influences the mechanical properties of parts produced through Fused Filament Fabrication technology. This paper aims to investigate if the bond performance for polylactic acid-based polymers can be enhanced by designing new contact geometries, different from the current surface-to-surface approach. To comprehensively understand the influence of the designed bonding geometries over the tensile strength, all specimens were produced according to a factorial design of experiment method and contact geometries constrained with function related to the nozzle size.