RT Journal Article
T1 Evaluation of machinability and surface quality enhancement of material extrusion fabricated polylactic acid cylinders through lathe machining parameters
A1 Bañón-García, Fermín
A1 Martín-Béjar, Sergio
A1 Bermudo-Gamboa, Carolina
A1 Trujillo-Vilches, Francisco Javier
A1 Sevilla-Hurtado, Lorenzo
K1 Extrusión (Mecánica)
AB This study examines the effect of lathe machining parameters on the machinability and surface quality of polylactic acid(PLA) cylinders produced using material extrusion technology. The research focuses on the correlation between cuttingparameters, machining temperature, and factors such as required machining force and associated power consumption.The aim is to improve the final product quality while reducing production times. The comparison between high-quality,time-intensive printed pieces and normally printed pieces complemented by a post-machining operation shows that incorporatinga machining step significantly improves surface quality and operational efficiency. The critical examination ofthe machining temperature, which is essential due to the thermoplastic nature of PLA and its low glass transition temperature,highlighted the influence of cutting speed and feed rate. Overall, feed rate was identified as the dominant parametercontrolling mechanical loading and surface roughness, whereas cutting speed primarily governed thermal response andinstantaneous power demand. The integrated analysis supports a process window in which compressed air assistance mitigatesheat accumulation and promotes stable chip evacuation. From a manufacturing perspective, printing at a productivelayer height followed by a short turning operation provides a competitive route to achieve high quality rotational surfacescompared with fine layer FFF printing, particularly for batch production.
PB Springer
YR 2026
FD 2026-03-23
LK https://hdl.handle.net/10630/46224
UL https://hdl.handle.net/10630/46224
LA eng
NO Bañon-Garcia, F., Martin-Bejar, S., Bermudo, C. et al. Evaluation of machinability and surface quality enhancement of material extrusion fabricated polylactic acid cylinders through lathe machining parameters. Prog Addit Manuf (2026). https://doi.org/10.1007/s40964-026-01624-9
NO Funding for open access publishing: Universidad de Málaga/ CBUA. Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 7 abr 2026