Some body work

[Grandman]

I stretched the wheel base on this GMC , I had to cut the rear quaters out which leaves them wide open to fill up with mud and crap . I made what i call quarter panel plugs to fill this back in and prevent these issues .

I weld them in with brass , it flows so there are no gaps , brass dont rust either .

Then put a coat of undercoating on them and your good to go .

http://i99.photobucket.com/albums/l292/grandman_02/Patchingquaters.jpg
http://i99.photobucket.com/albums/l292/grandman_02/patchingquarterdone.jpg

[Orange CJ]

:thumbsup:good idea.

[MuddyPaws 3.0]

How do you keep it from warping the shit out of the panels?

[Grandman]

How do you keep it from warping the shit out of the panels?

same as you would do with a wire welder . tack it along the seam but with wire i think you have to keep stiching and stiching . With brass and enough practice you can use just enough heat to melt the brass and move right along . That dont work as well on a wide open strectch such as welding in a whole quater panel , then you will get some warping which would normally be dealt with by filler .

Wheelers i use no filler , gets knocked out to easy .

[Grandman]

Regarding the strenght of brazing , its no way to weld your bumpers up but for body panels its plenty strong . The Grand has the rear fender wells cut out including the dog legs . The seams were put back together with brass and even with the beating it seen never opened a seam up .

[sglide]

Regarding the strenght of brazing , its no way to weld your bumpers up but for body panels its plenty strong . The Grand has the rear fender wells cut out including the dog legs . The seams were put back together with brass and even with the beating it seen never opened a seam up .
x2
brazing when done right is plenty stong for this
and brazing will give a bit befor it cracks
unlike hardwire
or cord wire
or any of the 60xx
and nickle rods

[Jeepr]

When I worked on bicycles, we brazed all the frames together. If it will take the abuse of kids playing Evil Knievel, it should hold your patch on.. Nice work, buy the way.

[Big Daddy Rubicon]

Brazing works well and is strong for panels. But auto bondo doesn't like the acid that it makes and it will fail in time, so not for anyone one building a show jeep.:hehe:

[sglide]

Brazing works well and is strong for panels. But auto bondo doesn't like the acid that it makes and it will fail in time, so not for anyone one building a show jeep.:hehe:what does it do to wax?:hehe:

[ddeadserious]

Is this done with a stick welder or oxy/acetelyne?

[Grandman]

Is this done with a stick welder or oxy/acetelyne?


torch and coated brazing rod . use very low heat , get the two parts hot , red hot but in a small area , hold the brazing rod right in the mix and heat it with the parts . Brass melts before steel does . as the parts become red hot or on the edge of glowing red get the brass melting onto them . The trick is moving the tip of the torch to the parts , or brass as a heat control method . where you need the heat you point the torch tip . If the brass just rolls off you didnt have the steel hot enough .

Play on the flat cement and learn , once you can get the brass to melt onto and stick to the steel your on your way :thumbsup: Um keep it up off the cement or your going to explode the cement

Dont expect to be an expert in 5 minutes , pratice . Make sure the steel is clean of paint rust blah blah .

[Spoiledbrat]

For small patch panels the bonding kits that are out work great. As long as you cover the area you grind down to bare metal with the material, no rust issues and no issues with bondo or filler. So far everything I used it on has worked well with no problems down the road.

[Grandman]

Bonding kit ? this some sort of epoxy ?

[user name]

I would guess the "bonding kit" is an epoxy most likely the same stuff Muddy Paws was going to use to fill the area on his XJ. I plan to use it if I ever get the time and ambition to put to wheel arches on my Dakota. It's rather expensive if I'm not mistaken though.

[BIGBEN]

torch and coated brazing rod . use very low heat , get the two parts hot , red hot but in a small area , hold the brazing rod right in the mix and heat it with the parts . Brass melts before steel does . as the parts become red hot or on the edge of glowing red get the brass melting onto them . The trick is moving the tip of the torch to the parts , or brass as a heat control method . where you need the heat you point the torch tip . If the brass just rolls off you didnt have the steel hot enough .

Play on the flat cement and learn , once you can get the brass to melt onto and stick to the steel your on your way :thumbsup: Um keep it up off the cement or your going to explode the cement

Dont expect to be an expert in 5 minutes , pratice . Make sure the steel is clean of paint rust blah blah .


if the metal is not cleaned properly, the braze will not stick to it. must be clean of all paint, dirt, rust, or other oxides.

also, let the heat of the metal melt the braze rod, not the torch. that way you can make sure the metal is hot enough.

it took me about three days in class to perfect braze welding so no, you will not learn it in five minutes.

good job on it marv.:thumbsup:

[Grandman]

also, let the heat of the metal melt the braze rod, not the torch. that way you can make sure the metal is hot enough.


Im guessing you were welding some heavy gauge stuff there Ben , on sheet metal you would not be able to do that .

[sglide]

good brazing info for those unfamiliar with the process
http://www.shopfloortalk.com/forums/showthread.php?t=13582&page=2

[BIGBEN]

also, let the heat of the metal melt the braze rod, not the torch. that way you can make sure the metal is hot enough.


Im guessing you were welding some heavy gauge stuff there Ben , on sheet metal you would not be able to do that .

from 14 gauge up to 3/8in

[Spoiledbrat]

Bonding kit ? this some sort of epoxy ?

Yes. 3M is one brand. They run from $25 to $40. Any auto paint supplier should have them. We use a lot in the bodyshop. Everything I have used them on has turned out with no problems. Clean the area good, glue it and clamp it or hold it together with screws. Needs to sit about 8 hrs.

[pre4runner]

http://i99.photobucket.com/albums/l292/grandman_02/patchingquarterdone.jpg

Mini mud flap!:hehe:

As far as this whole brazing thing goes i was messing around with it a while ago, its good for all sort of things

[sglide]

Mini mud flap!:hehe:

As far as this whole brazing thing goes i was messing around with it a while ago, its good for all sort of thingsyes it is, and still widely used by prof. welders like me

[Mongo]

[/COLOR]yes it is, and still widely used by prof. welders like me

And bjb

[sglide]

And bjbahahahahaha no