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A macroscale FEM-based approach for selective laser sintering of thermoplastics
- Source :
- The International Journal of Advanced Manufacturing Technology. 91:3169-3180
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- A numerical approach to model the selective laser sintering (SLS) of polypropylene is proposed. A 3D thermal model was developed and thus enables the prediction of the temperature fields and the extension of the sintered area in the powder bed taking into account the phase change during multiple laser passes. Powderâliquid, liquidâsolid and solidâliquid phase changes were modelled during the SLS and the subsequent cooling processes. Then, a 3D thermomechanically coupled model was set up based on the temperature results of the thermal model in order to predict the distortion of the produced parts after cooling down. Different pre-heating temperatures were considered, highlighting their influence on the final part properties.
- Subjects :
- 0209 industrial biotechnology
Materials science
Additive manufacturing
02 engineering and technology
Industrial and Manufacturing Engineering
law.invention
chemistry.chemical_compound
Phase change
020901 industrial engineering & automation
law
Distortion
Phase (matter)
Composite material
Polypropylene
Mechanical Engineering
Computer Science Applications1707 Computer Vision and Pattern Recognition
021001 nanoscience & nanotechnology
Laser
Finite element method
Finite element modelling
Computer Science Applications
Selective laser sintering
chemistry
Control and Systems Engineering
0210 nano-technology
Software
Cooling down
Subjects
Details
- ISSN :
- 14333015 and 02683768
- Volume :
- 91
- Database :
- OpenAIRE
- Journal :
- The International Journal of Advanced Manufacturing Technology
- Accession number :
- edsair.doi.dedup.....97c139257d549cd18f55bb116bd8c82c