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Materiale Plastice
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https://doi.org/10.37358/Mat.Plast.1964

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ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2020, Volume 57, Issue 2, 228-238

https://doi.org/10.37358/MP.20.2.5369

Ionel Danut Savu, Sorin Vasile Savu, Nicusor-Alin Sirbu, Mirela Ciornei, Robert Cristian Marin, Daniela Ioana Tudose

Laser Marking of PLA FDM Printed Products


Abstract:
The paper aimed to reveal, qualitatively and quantitatively, the modifications suffered by the PLA during the complex heating cycle specific to the 3D printing followed by laser marking. The obtained results showed that the melting point of the PLA decreases from 162.2oC (which is specific to PLA filament) to 153.1oC after the 3D printing process and to 149.7oC after the laser heating. The glass transition suffered the same lowering after the printing process but an important increasing after the laser heating. The elastic modulus evolution proved a decreasing of the plasticity and that is hapenning when the material suffers an increasing of its rigidity. The elongation viscosity was analyzed and its values were decreasing with the increasing of the temperature that happened on the material. The decreasing was produced by the reduction of the elasticity, when the chain branches are decreasing their length. The decreasing is more pronounced with the increasing of the temperature. The ratio between the loss modulus to the storage modulus and quantifies the way in which the PLA absorbs and disperses energy moves its peak from 65oC (curve specific to the PLA filament) to 45oC (curve specific to the last layer deposited by 3D printing process and re-heated by laser beam for marking). The peak means the lowest storage modulus, which is a measure of elastic response of a material, so the transition from glass to high elasticity moves to the lower temperatures.


Keywords:
3D printing using PLA; laser heating; relaxation modulus; crystallization; decreased plasticity; elongation viscosity

Issue: 2020 Volume 57, Issue 2
Pages: 228-238
Publication date: 01/07/2019
https://doi.org/10.37358/MP.20.2.5369
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
SAVU, I.D., SAVU, S.V., SIRBU, N., CIORNEI, M., MARIN, R.C., TUDOSE, D.I., Laser Marking of PLA FDM Printed Products, Mater. Plast., 57(2), 2020, 228-238.

Vancouver
Savu ID, Savu SV, Sirbu N, Ciornei M, Marin RC, Tudose DI. Laser Marking of PLA FDM Printed Products. Mater. Plast.[internet]. 2020 Apr;57(2):228-238. Available from: https://doi.org/10.37358/MP.20.2.5369


APA 6th edition
Savu, I.D., Savu, S.V., Sirbu, N., Ciornei, M., Marin, R.C. & Tudose, D.I. (2020). Laser Marking of PLA FDM Printed Products. Materiale Plastice, 57(2), 228-238. https://doi.org/10.37358/MP.20.2.5369


Harvard
Savu, I.D., Savu, S.V., Sirbu, N., Ciornei, M., Marin, R.C., Tudose, D.I. (2020). 'Laser Marking of PLA FDM Printed Products', Materiale Plastice, 57(2), pp. 228-238. https://doi.org/10.37358/MP.20.2.5369


IEEE
I.D. Savu, S.V. Savu, N. Sirbu, M. Ciornei, R.C. Marin, D.I. Tudose, "Laser Marking of PLA FDM Printed Products". Materiale Plastice, vol. 57, no. 2, pp. 228-238, 2020. [online]. https://doi.org/10.37358/MP.20.2.5369


Text
Ionel Danut Savu, Sorin Vasile Savu, Nicusor-Alin Sirbu, Mirela Ciornei, Robert Cristian Marin, Daniela Ioana Tudose,
Laser Marking of PLA FDM Printed Products,
Materiale Plastice,
Volume 57, Issue 2,
2020,
Pages 228-238,
ISSN 2668-8220,
https://doi.org/10.37358/MP.20.2.5369.
(https://revmaterialeplastice.ro/Articles.asp?ID=5369)
Keywords: 3D printing using PLA; laser heating; relaxation modulus; crystallization; decreased plasticity; elongation viscosity


RIS
TY - JOUR
T1 - Laser Marking of PLA FDM Printed Products
A1 - Savu, Ionel Danut
A2 - Savu, Sorin Vasile
A3 - Sirbu, Nicusor-Alin
A4 - Ciornei, Mirela
A5 - Marin, Robert Cristian
A6 - Tudose, Daniela Ioana
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2020
VL - 57
IS - 2
SP - 228
EP - 238
UR - https://doi.org/10.37358/MP.20.2.5369
KW - 3D printing using PLA
KW - laser heating
KW - relaxation modulus
KW - crystallization
KW - decreased plasticity
KW - elongation viscosity
ER -


BibTex
@article{MatPlast2020P228,
author = {Savu Ionel Danut and Savu Sorin Vasile and Sirbu Nicusor-Alin and Ciornei Mirela and Marin Robert Cristian and Tudose Daniela Ioana},
title = {Laser Marking of PLA FDM Printed Products},
journal = {Materiale Plastice},
volume = {57},
number = {2},
pages = {228-238},
year = {2020},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.20.2.5369},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5369}
}
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