Since 1963
ARTICLE
Evaluation of shape transformation in 4D printed polylactic acid using copper wires
1
Department of Industrial Machines and Equipment, Engineering Faculty, Lucian Blaga University of Sibiu, Sibiu, Romania
Submission date: 2024-12-05
Final revision date: 2025-02-18
Acceptance date: 2025-02-24
Online publication date: 2025-05-14
Publication date: 2025-05-14
Corresponding author
Raul-Mihai Petrașcu
Machinery and Industrial Equipment, Lucian Blaga University of Sibiu, Emil Cioran 4, 550025, Sibiu, Romania
Machinery and Industrial Equipment, Lucian Blaga University of Sibiu, Emil Cioran 4, 550025, Sibiu, Romania
KEYWORDS
TOPICS
ABSTRACT
This study explores the shape transformation of 4D printed polylactic acid (PLA) specimens activated by thermal stimulation above the glass transition temperature (Tg). Two methods were explored: (1) triggering shape transformation in a rectangular prism, “Flower”, and “Spiderweb”
designs via hot water immersion; and (2) inducing shape transformation through Joule heating using copper wires.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
