Abstract
The current research assesses various joining techniques such as an adhesive bond, direct three-dimensional printing, and ultrasonic welding for dissimilar three-dimensional printed thermoplastics such as polylactic acid and wood-reinforced polylactic acid biocomposite. This study is the first of its kind to determine an effective technique for joining three-dimensional printed polylactic acid/wood-polylactic acid profiles. Mechanical responses such as lap shear strength and shore D hardness of the various joints are investigated and compared experimentally. The results highlight that 15%–17% higher shear strength can be obtained for ultrasonically welded joints compared with direct three-dimensional printing of polylactic acid and wood polylactic acid lap joints. The macroscopic investigation of the ultrasonic welded polymeric joint exhibits a good level of melting of polymers and wetting in the interface. This results in an inter-molecular diffusion of polymeric chains and entanglement of polymers under respective conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 475-480 |
| Number of pages | 6 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications |
| Volume | 238 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2024 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© IMechE 2023.
Keywords
- Three-dimensional printing
- adhesion
- biocomposites
- polymers
- ultrasonics
- welding
ASJC Scopus subject areas
- General Materials Science
- Mechanical Engineering