The Quest for the Holy Grail Of 3D Printing: A Critical Review of Recycling in Polymer Powder Bed Fusion Additive Manufacturing
Bruno Alexandre de Sousa Alves, Dimitrios Kontziampasis, Abdel-Hamid Soliman
TL;DR
This paper reviews recycling solutions for 3D printing to improve sustainability and help additive manufacturing dominate global manufacturing.
Contribution
The paper provides a comprehensive and forward-looking review of recycling processes in polymer powder bed fusion additive manufacturing.
Findings
Current AM methods produce significant waste and are unsustainable due to energy and material use.
Recycling solutions for Powder Bed Fusion AM, especially SLS, are explored to identify research gaps.
The paper highlights the importance of sustainable AM for transitioning to a sustainable civilization.
Abstract
The benefits of additive manufacturing (AM) are widely recognised, boosting the AM method’s use in industry, while it is predicted AM will dominate the global manufacturing industry. Alas, 3D printing’s growth is hindered by its sustainability. AM methods generate vast amounts of residuals considered as waste, which are disposed of. Additionally, the energy consumed, the materials used, and numerous other factors render AM unsustainable. This paper aims to bring forward all documented solutions in the literature. The spotlight is on potential solutions for the Powder Bed Fusion (PBF) AM, focusing on Selective Laser Sintering (SLS), as these are candidates for mass manufacturing by industry. Solutions are evaluated critically, to identify research gaps regarding the recyclability of residual material. Only then can AM dominate the manufacturing industry, which is extremely important…
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Taxonomy
TopicsPhilosophy and Theoretical Science · Epistemology, Ethics, and Metaphysics