Welding Question
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Mountain Pass
Joined: Nov 2018
Posts: 106
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Welding Question
I am an amateur welder and after several weeks of practice i finally got the courage to cut and replace a patch panel on a rear fender of a 63 ford f100 stepside.
my question is that considering i am not a pro welder i hav a few ugly welds on the inside (back) of the panel. Should i worry about the inside when grinding the welds? I seem to have about 90% of the weld line with full penetration and a few spots that blew through and had to fill the holes in.
not sure if i should bring the inside or underside areas where welded or not.
Scott
my question is that considering i am not a pro welder i hav a few ugly welds on the inside (back) of the panel. Should i worry about the inside when grinding the welds? I seem to have about 90% of the weld line with full penetration and a few spots that blew through and had to fill the holes in.
not sure if i should bring the inside or underside areas where welded or not.
Scott
i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
the less places for moisture to get between the panels, the less chance for re rusting.
clean the reverse side of the panel too. smooth means water will roll off instead of pooling there.
clean the reverse side of the panel too. smooth means water will roll off instead of pooling there.
FTE Legend
Joined: Nov 2015
Posts: 30,935
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From: Angier, NC
Me if no one sees the back side I would just do a quick grind on the welds to make them look prettier, seam sealer to keep water out.
On the front side where it will be seen you will need to grind it down a little more maybe a little body filler, sand smooth, prim & paint.
On my Flare Side (step side is chevy) my patches were butt welded were it could be seen so that is where most of my grinding time was spent and did not need seam sealer.
This is the back side you cant see and the front side get covered up by the fender.
Patch welded in and a quick grind. I also had to make the lip that bolts the bed side to the floor and weld that in place, again grinding to look good where it will be seen.
Now on the cab floor pans, rockers, cab corners & rear door posts I did a over lap weld using weld thru primer. I punched holes around the out side of the patches and did plug welds thru the holes.
I then did 2 coats of seam sealer and then 2 coats of roll on bed liner top & bottom.
Dave ----
On the front side where it will be seen you will need to grind it down a little more maybe a little body filler, sand smooth, prim & paint.
On my Flare Side (step side is chevy) my patches were butt welded were it could be seen so that is where most of my grinding time was spent and did not need seam sealer.
This is the back side you cant see and the front side get covered up by the fender.
Patch welded in and a quick grind. I also had to make the lip that bolts the bed side to the floor and weld that in place, again grinding to look good where it will be seen.
Now on the cab floor pans, rockers, cab corners & rear door posts I did a over lap weld using weld thru primer. I punched holes around the out side of the patches and did plug welds thru the holes.
I then did 2 coats of seam sealer and then 2 coats of roll on bed liner top & bottom.
Dave ----
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Mountain Pass
Joined: Nov 2018
Posts: 106
Likes: 1
Good info thank you vey much.
are plug welds. Where you actually weld the inner plates. Thru the holes?
are plug welds. Where you actually weld the inner plates. Thru the holes?
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FTE Legend
Joined: Nov 2015
Posts: 30,935
Likes: 4,123
From: Angier, NC
Plug welds is a way to weld panels that over lap.
You drill or punch holes in 1 of the panels along the edge you want to weld together.
Then lay the 1 panel on top of the other and you weld the 2 panels together thru that hole. It's a poor mans spot weld.
All the little "dots" is where I did the plug welds to join the 2 panels together.
I could have welded along the edge of the panels where they overlap if I had to and may have in some areas.
Because I have compressed air in my garage I use a air tool that punches holes and flange edges.
http://www.eastwood.com/pistol-grip-...-16in-8mm.html
But they have others http://search.eastwood.com/search?w=...0flange%20tool
Before I do any cutting I do a trial fit of the panels and using a marker trace around the outside of the panel.
When removed you can now see what the new panel will cover and any cutting of the rusted part you know not to go to far.
You can also "trim" the new panel as needed but remark the area so you cut the rusted part right.
Dave ----
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