Resumen

GARCIA JACOMINO, J; BURGOS SOLA, J; ALVAREZ LUNA, M  y  GARCIA ARTEAGA, J. Efecto del tratamiento con explosivos sobre las tensiones residuales en uniones soldadas de acero al carbonoEffect of explosive treatment on residual stress in carbon steel welding joints.. Rev. Fac. Ing. UCV [online]. 2007, vol.22, n.2, pp.5-11. ISSN 0798-4065.

In this paper, the effect of the detonation energy of explosive charges as a method to reduce residual stresses in the heat affected zone of welded joints was studied. A comparative analysis of two alternatives for the positioning of the explosive charge is made: one of linear form and the other sinusoidal. The results obtained before and after the treatment demonstrate the effectiveness of the method and that in both cases a decrease in residual stress is obtained, with values which range between 50 and 60%, allowing us to affirm that both alternatives offer a possible solution to extend the working life of the welded joints.

Palabras clave : residual stress in welding joints; explosive treatments; residual stress relief.