Vibratory Stress Relief - Resonant Vibration Method
for Reducing Residual Stresses in Welded or Machined Fabrications.

Stress Relief Engineering
The World Leader in Vibratory Stress Relief Technology

Technical Papers

Stress Relief of Weld by Heat Treatment and Vibration:
A Comparison Between the Two Methods

Abstract
Introduction
Sources of Residual Stress
Effects of Residual Stress
Effects of Residual Stress on Welds
Stress Relief by Heat Treatment
Stress Relief by Vibration (VSR)
Measuring the Extent of Stress Relief
Experimental Section
Conclusions

STRESS RELIEF BY HEAT TREATMENT

Depending on the shape and size of the piece, heat treatment for residual stress relief can be carried out by heating the entire piece, or parts of it, in a furnace; or transforming it in a combustion chamber by installing a temporary burner into it, or treating the welds one by one by means of electric resistances. Heating by exothermic kits, which enjoyed some popularity in the sixties and seventies, was abandoned because it did not produce the expected results.

 

 


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