TY - JOUR
T1 - Thermal-fluid coupled analysis of the nozzle part for the FDM 3D printers considering flow characteristics of cooling fan
AU - Lee, Chang Whan
AU - Kim, Hyun Woo
AU - Yu, Jea Hyeong
AU - Park, Keun
N1 - Publisher Copyright:
© 2018 Korean Society for Precision Engineeing. All rights reserved.
PY - 2018/5
Y1 - 2018/5
N2 - For 3D printing of high-strength polymers, such as PC (Polycarbonate) and PEI (Polyetheimide), the temperature of the nozzle should exceed the melting temperature of the high-strength materials. At the same time, the temperature of the transfer part, composed of the shaft extruder and the Teflon hose, should be cooled below the glass transition temperature and below the limit temperature of the transfer part. In this study, we analyzed the effect of the flow rate of the cooling fan when the extruder nozzle is heated to 300oC. We compare the natural convection environment, in which the cooling fan is not operated, and the forced convection condition, in which the cooling fan is operated, and analyze the effect on the cooling fan flow rate. The simulation considered the heat transfer in the air and the nozzle, as well as the flow characteristics of the air.
AB - For 3D printing of high-strength polymers, such as PC (Polycarbonate) and PEI (Polyetheimide), the temperature of the nozzle should exceed the melting temperature of the high-strength materials. At the same time, the temperature of the transfer part, composed of the shaft extruder and the Teflon hose, should be cooled below the glass transition temperature and below the limit temperature of the transfer part. In this study, we analyzed the effect of the flow rate of the cooling fan when the extruder nozzle is heated to 300oC. We compare the natural convection environment, in which the cooling fan is not operated, and the forced convection condition, in which the cooling fan is operated, and analyze the effect on the cooling fan flow rate. The simulation considered the heat transfer in the air and the nozzle, as well as the flow characteristics of the air.
KW - 3D printing
KW - Extruder
KW - Finite element method
KW - Fused deposition modeling
KW - Thermal-fluid coupled analysis
UR - http://www.scopus.com/inward/record.url?scp=85046530794&partnerID=8YFLogxK
U2 - 10.7736/KSPE.2018.35.5.479
DO - 10.7736/KSPE.2018.35.5.479
M3 - Article
AN - SCOPUS:85046530794
SN - 1225-9071
VL - 35
SP - 479
EP - 484
JO - Journal of the Korean Society for Precision Engineering
JF - Journal of the Korean Society for Precision Engineering
IS - 5
ER -
