The essential work of fracture method for the characterisation of fusion bonding in 3D printed short carbon-fibre reinforced polyamide 6 thin films

He，Qinghao1,2; Ye，Lin1,3; Kinloch，Anthony J.4

2022

10.1016/j.compscitech.2022.109361

COMPOSITES SCIENCE AND TECHNOLOGY   影响因子和分区

0266-3538

The fusion bonding between individual filaments of 3D printed short carbon-fibre reinforced polyamide 6 (SCF/PA6) in thin films manufactured using the fused filament fabrication (FFF) process has been studied. The thin films were deposited by an ‘in-plane’ mode or an ‘interlayer’ mode. The main characterisation technique employed was the essential work of fracture (EWF) method. Undertaking EWF tests on such thin films is shown to be a feasible and efficient way to evaluate the extent and quality of fusion bonding between individual filaments of the 3D printed SCF/PA6 composites. For example, firstly, for the 3D printed SCF/PA6 thin films it was readily evident that the extent of fusion bonding, i.e. the adhesion via molecular inter-diffusion, often termed the autohesion, between the filaments is the weakest, and the most variable, in the 3D printed SCF/PA6 thin films deposited via the interlayer mode. This was indicated by the lowest measured values of both the specific essential work of fracture, w, and the coefficient of determination, R, of 19.6 kJ/m and 0.05, respectively, for the interlayer printed SCF/PA6 thin films. Secondly, the quality of the 3D printed SCF/PA6 thin films deposited via the in-plane mode was significantly enhanced by the use of further compression moulding process, since the value of R increased from 0.77 to 0.92. The results clearly suggest the need to improve the extent and quality of fusion bonding between individual filaments printed using the FFF process when 3D printed components are made for practical applications.

Essential work of fracture Fused filament fabrication Fusion bonding Process–structure–property relationships Short carbon-fibre reinforced polyamide 6

EI

英语

通讯

Australian Research Council[DP190102354];

20221211815287

3D printers ; Carbon fibers ; Carbon films ; Fracture ; Reinforcement ; Thin films

Printing Equipment:745.1.1 ; Chemical Products Generally:804 ; Coating Materials:813.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85126515762

Scopus

1.Centre for Advanced Materials Technology,School of Aerospace,Mechanical and Mechatronic Engineering,University of Sydney,2006,Australia
2.Research Institute of Advanced Composite Forming Technology and Equipment,Jiangsu Industrial Technology Research Institute (JITRI),Wuxi,China
3.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,China
4.Department of Mechanical Engineering,Imperial College London,South Kensington Campus,London,SW7 2AZ,United Kingdom

He，Qinghao,Ye，Lin,Kinloch，Anthony J.. The essential work of fracture method for the characterisation of fusion bonding in 3D printed short carbon-fibre reinforced polyamide 6 thin films[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2022.

He，Qinghao,Ye，Lin,&Kinloch，Anthony J..(2022).The essential work of fracture method for the characterisation of fusion bonding in 3D printed short carbon-fibre reinforced polyamide 6 thin films.COMPOSITES SCIENCE AND TECHNOLOGY.

He，Qinghao,et al."The essential work of fracture method for the characterisation of fusion bonding in 3D printed short carbon-fibre reinforced polyamide 6 thin films".COMPOSITES SCIENCE AND TECHNOLOGY (2022).