Investigations of additively manufactured SMA high-load actuator elements

Conference: ACTUATOR 2024 - International Conference and Exhibition on New Actuator Systems and Applications
06/13/2024 - 06/14/2024 at Wiesbaden, Germany

Proceedings: GMM-Fb. 110: ACTUATOR 2024

Pages: 2Language: englishTyp: PDF

Authors:
Boehm, Andrea; Weck, Christian; Hofer, Andreas; Pagel, Kenny; Drossel, Welf-Guntram

Abstract:
Additive Manufacturing techniques like laser powder bed fusion process allow for the manufacturing of NiTi shape memory elements. The additive produced hollow samples are in the low-temperature phase in the martensitic state at room temperature. The reversible, martensitic-austenitic phase transformation results in a shape memory effect. The additional heat treatment makes the hollow cylinders suitable for cyclic use as actuator material. Microstructure, phase transformation temperatures, and cyclic behavior were investigated. In addition, a high-load actuator element is presented.