Open AccessExperimental Study on the Dimension Error of Bridged Structures Printed by Fused Deposition Modeling
Author(s) -
ChunChen Yang,
Jianhua Liu,
Xiaohui Ao,
Huanxiong Xia
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/772/1/012069
Subject(s) - bridging (networking) , nozzle , fused deposition modeling , materials science , deposition (geology) , composite material , dimension (graph theory) , 3d printing , thermoplastic , structural engineering , computer science , engineering drawing , mechanical engineering , engineering , mathematics , geology , computer network , paleontology , sediment , pure mathematics
Fused deposition modeling, a popular additive manufacturing technology by extruding thermoplastic materials, can be used to print structural parts with complex geometries. However, when a part appears an overhanging structure, it is usually necessary to add an auxiliary support structure. The added structure not only causes material waste but also secondary damage to the printed part owing to removing the support structure in post-processing. To understand the dimension error of bridged structures without support structures, this paper experimentally investigated the effects of the bridging span, layer thickness, nozzle speed and temperature on the sagging deformation of the bridged structures. The limitation of bridging span and the sensitivities of the printing parameters were found.