ESR Presentation

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TECHNOLOGY FOR EXPLOSION STRESS RELIEVING IN
WELDED JOINTS OF METAL STRUCTURES
NATIONAL ACADEMY OF SCIENCES OF UKRAINE The E.O.
Paton Electric Welding Institute (PWI)
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TECHNOLOGY FOR EXPLOSION STRESS RELIEVING IN
WELDED JOINTS OF METAL STRUCTURES
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EXPLOSION STRESS RELIEVING IN WELDED JOINTS
Residual stresses inevitably occurring during
fusion welding are hazardous for welded metal
structures. They sharply decrease the reliability
and life-time of welded joints. The existing
traditional methods of stress relieving (thermal,
vibration, rolling by rolls, etc.) are either
ineffective or unacceptable. The explosion
treatment technology proposed is based on
application of intensive relaxation processes and
deformation on metal in shock waves generated by
contact explosion. It permits relieving or
inducing residual stresses, strengthening metal
and changing its substructure.
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EXPLOSION STRESS RELIEVING IN WELDED JOINTS
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EXPLOSION STRESS RELIEVING IN WELDED JOINTS
1. Vessels and reservoirs, operable in contact
with hostile environment 2. Pipelines of
critical application 3. Large dimension
structures, produced with high requirements
against accuracy of their geometry.
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