Hello,
Thanks to all the contributors on this forum I can now DC tig weld aluminium.
Which brings me to my next problem - What grade of filler rod should I be using?
The bodywork is for an Aston Martin - One book that I have describes it as Aluminium/Magnesium alloy of commercial grade half hard.
Another problem that I have had is hairline cracking - when I grind the weld level I sometimes get a short crack that is only just noticable; it runs along the joint. Is this poor preperation / technique or incorrect filler etc?
I have been using 5356 filler rods so far.
Thanks,
Simon