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Title Feasibility study on the use of recycled materials for prototyping purposes: A comparative study based on the tensile strength
ID_Doc 18891
Authors López, VM; Carou, D; Cruz, FA
Title Feasibility study on the use of recycled materials for prototyping purposes: A comparative study based on the tensile strength
Year 2023
Published Proceedings Of The Institution Of Mechanical Engineers Part B-Journal Of Engineering Manufacture, 237.0, 5
DOI 10.1177/09544054221113378
Abstract 3D printing is considered a disruptive technology and it continues to expand the design space boundaries for prototypes and final products. Sustainability is one of the major objectives for manufacturing, and the use of recycled materials is becoming a relevant sustainability strategy, particularly for improving material resource efficiency. This paper evaluates the suitability of substituting virgin polylactic acid (PLA) for recycled PLA. It describes an experimental plan divided into three phases to evaluate the specimens' tensile strength. The results showed that recycled PLA could be used thanks to a similar tensile strength, even though this is slightly lower than that of the virgin material. In addition, the infill density and the orientation parameters played a major role in the response. As the infill density approaches 100%, both the maximum load and tensile strength increase sharply. However, when using an infill density of 40%, on average, the specimen resists 58.07% of the maximum load. In addition, because of the anisotropy, the horizontal orientation allowed attaining a higher tensile strength while the vertical orientation provided a lower value. These are relevant insights for prescriptions of the 3D-printing parameters guaranteeing minimum tensile strength in prototyping.
Author Keywords 3D printing; prototyping; distributed recycling; recycling; tensile strength; PLA
Index Keywords Index Keywords
Document Type Other
Open Access Open Access
Source Science Citation Index Expanded (SCI-EXPANDED)
EID WOS:000830759800001
WoS Category Engineering, Manufacturing; Engineering, Mechanical
Research Area Engineering
PDF https://zenodo.org/records/7764252/files/L%C3%B3pez%20et%20al.%20-%202022%20-%20Feasibility%20study%20on%20the%20use%20of%20recycled%20materials.pdf
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