Micro zigzag-type springs have been fabricated and characterized using shape memory alloy wires. Zigzag- type shape memory allloy springs, which are functional material applicable as actuator material, have planar structure. Coil-type springs, however...
Micro zigzag-type springs have been fabricated and characterized using shape memory alloy wires. Zigzag- type shape memory allloy springs, which are functional material applicable as actuator material, have planar structure. Coil-type springs, however, have three-dimensional structure, so zig zag-type spring has advantages of small dead volume over coil-type spring.
The proposed fabrication method of zigzag-type spring is very simple and can be applied for thin-tube type actuator.