Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of manufacturing process of a Superelastic NiTi Bending Spring
Submission Author:
Igor Jordan Guilherme de Sena , PB
Co-Authors:
Igor Jordan Guilherme de Sena, Richard Senko, Antonio Almeida Silva, Vinícius da Silva Almeida
Presenter: Richard Senko
doi://10.26678/ABCM.COBEM2023.COB2023-1249
Abstract
The application of smart materials in rotating systems as vibration attenuators is well-established due to their vibration reduction capabilities. One of the most common types of smart materials used is Shape Memory Alloys (SMA), which exhibit property changes in response to temperature (shape memory effect - SME) or mechanical stress (super-elasticity-SE). The objective of this research is to compare and analyze the manufacturing of superelastic NiTi blade-type springs, considering different heat treatment methods, mechanical forming processes, and fabrication techniques (shape setting), with the aim of achieving a balance in properties. By optimizing these factors, it was possible to obtain a final austenitic temperature of 14.88°C, an increased hysteresis damping of 78.44%, and a rupture strength of 1285.23 MPa. These results demonstrate the high potential of the springs in passive vibration reduction in rotating systems.
Keywords
Shape Memory Alloys, Superelasticity, rotating systems
