Irreversible and Repeatable Shape Transformation of Additively Manufactured Annular Composite Structures.

ABSTRACT: Four-dimensional (4D) printing is a unique application of additive manufacturing (AM) which enables additional shape transformations over time. Although 4D printing is an interesting and attractive phenomenon, it still faces several challenges before it can be used for practical applications: (i) the manufacturing cost should be competitive, and (ii) the shape transformations must have high dimensional accuracy and repeatability. In this study, an irreversible and repeatable thermoresponsive shape transformation method was developed using a material extrusion type AM process and a plain thermoplastic polymer (ABS) without a shape-memory function. Various types of annular discs were additively manufactured using printing paths programmed along a circular direction, and additional heat treat

SUBMITTER: Goo B 

PROVIDER: S-EPMC8001721 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature