Little aluminum repair on a boat

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My son has a 12', 36" bottom Polar Craft that was given to him and it has a few cracks in the hull and in other areas. So today we started the repairs. This is in the corners at the stern. Cracks and one bolt hole to fix.We will repair the cracks in the hull next. Yes, I did drill the end of the cracks.Here's the pics..1. the corner on port quarter. The crack is longer than it looks in the pic2. the corner on starboard quarter. the crack is hardly visible in the pic3. repaired port quarter.4. repaired starboard quarter.repaired port quarterrepaired starboard quarterand yes I did go back and fix that crater
Reply:Goat, what machine did you use for  the repair?  Nicely done.Lincoln Power Mig 216Lincoln AC/DC-225/125Miller  625 X-Treme PlasmaMiller 211 Forney 95FI-A 301HF 91110Victor Journeyman O/PMilwaukee DaytonMakita  Baileigh NRA Life Member
Reply:Thanks. Used a Syncrowave 200 @ 90 amps (foot control manual pulse), 15cfh argon, 3/32" 4043 filler, 3/32" 2% lanthanated tungsten, sharp. I just bought my tig machine on the 18th of December so this was a good test for me. Thanks again.
Reply:Originally Posted by Goat DriverThanks. Used a Syncrowave 200 @ 90 amps (foot control manual pulse), 15cfh argon, 3/32" 4043 filler, 3/32" 2% lanthanated tungsten, sharp. I just bought my tig machine on the 18th of December so this was a good test for me. Thanks again.
Reply:I have a buddy with a boat with about the same repairs to do. nice pics. Thanks!Lincoln Power Mig 210MP MIGLincoln Power Mig 350MP - MIG and Push-PullLincoln TIG 300-300Lincoln Hobby-Weld 110v  Thanks JLAMESCK TIG TORCH, gas diffuser, pyrex cupThermal Dynamics Cutmaster 101My brain
Reply:Cool!...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:I have found that the crack is less likely to come back in aluminum if I don't grind off the weld beads.  That extra thickness of the bead adds considerably to the durability of the repair.  Sometimes you need to grind it to make it look good, but on a boat I think I'd rather have the strength.Miller Syncrowave 350Millermatic 252/ 30A spoolgunMiller Bobcat 225g w/ 3545 spoolgunLincoln PowerArc4000Lincoln 175 Mig  Lincoln 135 Mig Everlast 250EX TigCentury ac/dc 230 amp stickVictor O/AHypertherm 1000 plasma