Vibratory Stress Relieving


32 Beech Ave
Drakes Broughton
WR10 2BJ

Tel: + 44 (0) 7776 230 311



What is VSR ?

VSR is a mechanical process for stabilising engineering components. This is done by inducing the component into a series of resonant conditions. These are found by rigidly attaching a variable force/frequency exciter to the component, isolating the assembly via rubber mounts, then scanning through the frequency range until these resonant conditions are identified. They are then treated for the relevant number of cycles. The exciter used being one or several from the range, dependant on the frequency response, geometry etc. The loading patterns induced by the resonant vibrations are far more complex than could be achieved by externally applied static force therefore causing the component to undergo overall elastic and plastic deformation resulting in both a lowering and a redistribution of the overall stress field.

What size of component and range of materials can be treated?

VSR can treat components weighing from a few grammes to over 200 tonne in a wide range of ferrous and non ferrous materials, in cast fabricated and bar form. Mixed metal components can also be succesfully treated as can materials in previously treated conditions. The limitations being severly cold worked materials and because VSR brings about no metallurgical change it is unsuitable for the majority of pressure vessel and pipework applications.



Home When To Use VSR? Process Summary What is VSR? Problems?