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Challenges on extrusion-based additive manufacturing of thermoplastic polyurethane

Year: 2024

Type: article

Abstract: Fused filament fabrication (FFF) offers rapid production with user-friendly operation and cost-effectiveness, yet challenges in printing with thermoplastic polyurethane (TPU) persist. This study identifies causes of print defects in FFF-TPUs and their relation to process parameters, by visually analysing samples produced with various TPU materials. Extrusion temperature, printing speeds, filament cooling, overlap, and extrusion flow are subject to evaluation. Common issues include filament entanglements, under-extrusion, stringing, or geometric deviations. Among other approaches, results highlight the importance of slow, constant print speeds and careful optimization of extrusion temperature.

Source: Engineering Manufacturing Letters

DOI: 10.24840/2795-5168_002-001_2675

Authors: Manuel Sardinha, Luís Ferreira, Tânia Ramos, Luís Reis, M. Fátima Vaz

Institutions: University of Lisbon, Instituto Superior Técnico, Instituto Superior Técnico Instituto de Engenharia Mecânica, Centro de Estudos de Gestão

Language: English

Topic: Additive Manufacturing and 3D Printing Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4403338918

FWCI: 0.971

Cites:

Cited by: 9

Related to: 10