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ANALYSIS FOR RECONDITIONING

Residual stress plays an important role with respect to the operating performance of helical springs; its effect on the properties of materials can be considered. This project aimed to recondition the open coil helical spring through shot peening and heat treatment process.3D model of open coil helical spring is developed using CAD packages, then analysis is carried out to recondition the spring using FEM software.Shot peening is the cold working process used to impart compressive residual stress in the surface layer of work piece. Shot peening are carried out for various velocities (v=10m/s, v=15m/s & v= 20m/s) and various diameters (d=1.5mm, d=2mm, d=2.5mm) Heat treatment also considered along with different cooling rate and results are compared.



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Tue, 19/04/2011 - 21:24

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