Thanks for the help everyone.
We have had a couple of weeks of investigation, consideration, repair and reinvestigation. We have a large number of joints in the structure and it is a relatively small number (statistically) showing defects. In all cases we have been able to attribute the cause...
I have just started on a new project (in the UK) so am not completely on top of all the specific construction history as I would like to be. The structure is aluminium, welded at all joints, and makes up a gantry which hangs from a bridge so is subject to vibration with traffic, but very little...
Can anyone advise on the possibility of repairing cracks in aluminium welds without the need to grind the weld back to remove the crack first?
I have been presented with a proposal stating that cracks on my project are small/shallow enough that in the process of welding over the existing weld...
