Open AccessInfluence of squeegee impact on stencil printing process: CFD approach
Author(s) -
M. H. H. Ishak,
Mohd Sharizal Abdul Aziz,
M. H. S. Abdul Samad,
Farzad Ismail,
Mohd Arif Anuar Mohd Salleh
Publication year - 2020
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/957/1/012065
Subject(s) - stencil , computational fluid dynamics , fluent , process (computing) , mechanical engineering , work (physics) , solder paste , soldering , engineering drawing , computer science , materials science , engineering , composite material , computational science , aerospace engineering , operating system
This work has been conducted to predict the real time observation of solder paste Sn96.5Ag3.0Cu0.5 (SAC305) filling process into stencil apertures as well as print quality in stencil printing by using Computational Fluid Dynamics (CFD) approach. A 3-Dimensional stencil printing model was developed and simulated in FLUENT by using different squeegee parameters which are the angle and printing speed. An experimental work was performed to be compared with part of the simulation results in term of print quality for validation purpose. It is found that squeegee angle 60° to 80° has potential to obtain good print quality of solder paste. In addition, print speed range between 35 mm/s to 95 mm/s also can be the good print speed option to achieve good print quality in stencil printing process. Finally, the maximum pressure distribution of solder paste also changes substantially as the squeegee travel further with respect to different values of tested parameters.