I found that out too, not to use a grinder on aluminum if your going to weld it. It seems even with a grinding or cut off wheel made for aluminum it still embeds particles in the aluminum and the MIG does not like that. After learning that, I now always cut aluminum with a shear or saw, no problems there. Plasma cutter if I have to. Sandblasting also cleans good but again embeds particles in the aluminum.
Fun4now, I use the little SS wire brushes with the wood handles, cheap and work pretty well. I have a cup one too but I usually us it for cleaning up when done.
Some good info welder_one
Results 31 to 40 of 44
Thread: Pontoon Boats
08-16-2007, 07:11 AM #31Scott
HMW [Heavy Metal welding]
08-16-2007, 09:15 AM #32Senior Member
- Join Date
- Aug 2007
- I live in Cheraw, South Carolina
Thanks for the info on the depth finder. I put a Humingbird on the Triton but wasn't sure about where to put one on the pontoon. My gas tank is in the back and the boat is definitely a little lower in the back sitting in the water.
I think I will use whatever they have at Wallmart. They just built a super Wallmart in Cheraw and it opened last week. I have only braved the crowd one time since then but will go there in a couple of days to see what they have. I have a friend that says he wouldn't have anything but a Garmin. I have a Humingbird on the Triton and that is the only one I have any experience with. I guess the Humingbird works OK - many times it has shown me fish and then I will see some jump out of the water. One thing I have learned about the fish finder. It may show you where they are at, but it won't make them bite.
That is a good idea on the reference line on the boat. That will probably save me a lot of trial and error. I think I will have to weld the L bracket a little below the water line though. That way I won't have to lie about the weld.
We can meet at the Midnight Rooster soon. My daughter works in Hartsville a couple days a week doing her internship for her Master of Social Work. She graduated from Coker, so I am sure whe knows where the Rooster is . For all the good information you have given me, I will have to buy you lunch instead of just a coffee.
Thanks for the offer to use your dock. I will bring the cooler and a couple of rods for you to use if you can turn off the welder for a little while.
07-14-2008, 09:33 PM #33
Baxely has pretty good handle on things,some good advice.I personally preferr the Tig repair on pontoon boats,I know that they weld from factory with MiG ,But that is with ****** material,most of the cases I run across is wear ,the material is very thin in locations to be welded or rewelded.I run a hand amp controll .I can lay on my back under a pontoon and weld over head and control my heat.Where is if you tried Mig you would probally be to hot and burn through and have your hands full with a big ole MESS.May be that helped a little.I weld on refrigeration coils also If you didnt use the Tig method w/h amp control of some kind ,would also burn through and have the same mess.
07-14-2008, 09:39 PM #34
In cutting Aluminum or gouging a bevel in a crack,I reccomend a suicide saw this is awesome tool .It will even surface a weld bead to near machined surface... With no embeded particles or with out the gouge tears of a plasama.All air pneumatics, hand held, but kinda dangerous with out proper training
07-14-2008, 11:27 PM #35at home:
2012 325 Trailblazer EFI with Excel power
2007 302 Trailblazer with the Robin SOLD
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2009 Dynasty 200DX
2000 XMT 304
2008 Thermal Dynamics Cutmaster 52
Retired:Shopmaster 300 with a HF-251
07-16-2008, 06:39 PM #36Senior Member
- Join Date
- Jan 2008
- haslet, TEXAS
a close friend of mine welded potoons in louisiana and he built the strongest ones they had useind 3/16 spring steel and he fusion welded them together! No filler
07-16-2008, 06:55 PM #37Senior Member
- Join Date
- Dec 2007
07-16-2008, 07:03 PM #38Senior Member
- Join Date
- Dec 2007
07-16-2008, 10:03 PM #39
Ammonia refrigeration tech
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HF-15 High frequency
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Victor O/A, DeWalt, North mask
"A professional knows what to do. A craftsman knows why."
07-17-2008, 07:12 PM #40
I hope you do not believe everything you have read on this thread....I have made my living for many years doing pontoon repair almost exclusively and there is some SERIOUS B.S. on this thread. (material, and processes etc..)
That is why I would not post on it other than that even tho it's been up for darn near a year
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