Empleo de explosivos en el alivio de tensiones residuales de la zona de influencia térmica de uniones soldadas

AUTOR(ES)
FONTE

Soldagem & Inspeção

DATA DE PUBLICAÇÃO

2009-06

RESUMO

In this paper, the effect of explosive charges as a method to reduce the residual stresses in the heated zone of welded unions was studied. A comparative analysis of two geometries of the explosive charge applied on welded unions was made: linear and sinusoidal. The comparative results obtained before and after the explosive treatment demonstrate its effectiveness by the reduction of the residual stresses. Residual stress reduction ranged in the order of 50 and 60%, confirming that explosive treatment offers a viable solution to extend the life of the welded unions.

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