Abstract
Laser induced forward transfer (LIFT) allows for the printing of high resolution metal structures, making it a promising technique for manufacturing functional devices. While the electrical properties of LIFT printed metal structures have been extensively studies, studies of their mechanical properties, which are of much interest, are rather scarce. Here we explore the mechanical properties of 3D, high aspect ratio, LIFT printed copper and gold structures. The effective modulus of special test structures was determined by tracing the resonance frequencies under pulse excitation. The effective modulus was found to be ~x3 to x9 times lower than the bulk values. Such differences are attributed to both the porosity of the LIFT printed structures as well as to droplets interfacial properties.
| Original language | English |
|---|---|
| Pages (from-to) | 285-289 |
| Number of pages | 5 |
| Journal | Procedia CIRP |
| Volume | 74 |
| DOIs | |
| State | Published - 2018 |
| Event | 10th CIRP Conference on Photonic Technologies, LANE 2018 - Furth, Germany Duration: 3 Sep 2018 → 6 Sep 2018 |
Bibliographical note
Publisher Copyright:© 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
Keywords
- 3D printing
- Additive manufactoring.
- LIFT
- Laser induced forward transfer
- Metalic microstructures