Design and manufacturing of a shape memory alloy helical spring actuator: a review

Prince Deshwal and M.L.Aggarwal

Shape memory alloy (SMA) provides a significant amount of actuation with an extremely small envelope volume with minimum noise levels. Mechanical properties of Ti-Ni alloys are very interesting for developing smart actuators manufactured from these non-conventional materials. Design and material properties for SMA has been discussed in the present work. The paper provides framework for manufacturing, designs and applications of shape memory alloy intelligent helical spring actuator. This paper will contribute through intelligent technique using temperature sensitive automation in mechanical system.

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