Prevention of build up of residual stresses in welds during weld

Metal fusion bonding – Process – With condition responsive – program – or timing control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

228103, 228104, 228110, B23K 2800

Patent

active

043867278

ABSTRACT:
A process is described in which a weld is produced without residual stresses; or with residual stresses reduced to a low value. Stress cycles of low value at low frequency are applied in the longitudinal direction of the weld by means of an air operated vibrator during welding. Application of stress cycles may be continued after welding, during or after reheating which may be applied to the solidified weld. Stress cycles are applied at high temperature when the weld metal is in a molten state, semi-solid state and solidified state, and thus brings about reduction in dislocation density in solidified crystals. Stress exists at each dislocation and since the dislocation density is reduced, reduction in residual stress takes place thereby eliminating the need for additional stress relieving operations. Since stress cycles are applied during welding, gases in molten metal are driven out and porosity in the solidified weld is reduced.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Prevention of build up of residual stresses in welds during weld does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prevention of build up of residual stresses in welds during weld, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prevention of build up of residual stresses in welds during weld will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2339799

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.