Ad Hoc, Yes aircraft are riveted, the primary alloys are 2024-t3 & 7075-t6 that should never be welded, there are a lot of other weldable alloys...
ad hoc ad hoc, as a retired aircraft welder (45 yrs) we have always used copper to back up alum. because on complex shapes, usually .020-.035 in...
Use a copper back up plate & argon as a sheilding gas.
thanks for the advice, the original transom was 2" guess i'll go with 4 sheets of 3/4, as the weight of the setback is about 100 lbs, the...
HI, im new to this forum, i have a 21' wellcraft, 18" setback transom w/ 6" hyd.jackplate and 150 merc efi. my transom is rotten, since i have a...