Optimal Design & Analysis of Compression Helical Spring for Enhancement of Life
Keywords:
Spring, CATIA, spring steel, Shot peening, MPI, Ansys 14.5.Abstract
Springs are mechanical devices that are capable of storing mechanical energy because of their elasticity.
Springs are often made of coiled, hardened steel, although non-ferrous metals such as bronze and titanium and even
plastic are also used. There are various types of springs, the designs of which take advantage of different energy storage
management. Springs are usually made of hardened steel that are formed into the shape of a helix which returns to its
natural length when unloaded.
Shot peening is done on the helical spring, which serves to increase the life of the component subjected to high
cyclic stresses. These springs have been modelled and analysed using ANSYS 14.5 version.
These springs have been manufactured and one of the springs of each material has been shot peened. These
springs are tested on Universal Testing machine for their deflection when subjected to different loads. It is observed that
the spring that has been shot peened undergo less deflection for the same load applied when compared to spring to
normal spring.
Spring steel is material used to manufacture. These materials have high yield strength and high ultimate strength
but yield and ultimate are very close like brittle material but with high tensile strength.
