Reliability Testing of 3D-Printed Polyamide Actuators

Kasap G., Gokdel Y. D., Yelten M. B., Ferhanoğlu O.

IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY, vol.20, no.1, pp.152-156, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 1
  • Publication Date: 2020
  • Doi Number: 10.1109/tdmr.2020.2966043
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.152-156
  • Keywords: Three-dimensional printing, magnetic actuators, biomedical optical imaging, materials reliability, fatigue, lifetime estimation, MECHANICAL-PROPERTIES, LASER, DEPENDENCE
  • Istanbul Technical University Affiliated: Yes


3D printing is a rapidly emerging low-cost, high-yield, and high-speed manufacturing technique that has already been utilized in fabricating sensor and actuator devices. Here we investigate the cyclic fatigue and the effect of heating on 10 x 10 mm2-sized, 3D-printed polyamide-based laser scanning electromagnetic actuators, which are intended for integration with miniaturized laser-scanning imagers to yield a wide variety of optical imaging modalities. The tested actuators offer compact sizes and high-scan angles, comparable to their MEMS counterparts. We have tested N = 15 devices, at 5 different total optical scan angles between 40 degrees - 80 degrees, and observed their lifetimes (up to 108 cycles approximate to 10 days each), as well as the variability in their scan angle and mechanical resonance. A selected scanner was also tested under increased temperature conditions up to 60 degrees C for 10 hours, showing no sign of fatigue when returned to room temperature. Overall, it is concluded that 3D printed polymeric actuators are promising low-cost alternatives for short-term use in disposable opto-medical imaging units.