Quarter panel welds.

[GideonBowles]

Greetings and a good day to who read. I finally made it and put my quarter panel on my car. 

I have it tacked in place but I am unsure of the next steps. I’ve been told recently recently you should always do a full weld, which includes tacking it in small sections very quickly over and over again until full weld is completed. That is correct. I would love for someone to let me know because I have found very many differing answers. I will also try to upload some pictures! 
 

https://imgur.com/a/GisRbfB

Thank you very much!

[Leghome]

By doing the small tacking or very short welds you are less likely to get warpage.  I remember 45 years ago of brazing a quarter panel on and you had to really careful doing that because a torch will warp the metal in a heart beat. Then we would have to go back and grind off all of the exposed brass so it would not pop and destroy the body work. Bondo did not like to stick to brass very well. And then if you got it to warm from grinding it would warp also. Very tedious work and glad I did not have to make my living doing that kind of work I would have starved I was not real good and slow at it. 

[GideonBowles]

So is that just do short welds and tacking or is that short welds and tacking over the whole thing at different periods to make make sure it doesn’t warp. After my original quarter panel, it had in total five different sections welded onto it and all of them were braised on. And the only experience I have with that holy smokes, I ruined a good dozen blades trying to cut through it. 

[GideonBowles]

6 minutes ago, Leghome said:

By doing the small tacking or very short welds you are less likely to get warpage.  I remember 45 years ago of brazing a quarter panel on and you had to really careful doing that because a torch will warp the metal in a heart beat. Then we would have to go back and grind off all of the exposed brass so it would not pop and destroy the body work. Bondo did not like to stick to brass very well. And then if you got it to warm from grinding it would warp also. Very tedious work and glad I did not have to make my living doing that kind of work I would have starved I was not real good and slow at it. 

So is that just do short welds and tacking or is that short welds and tacking over the whole thing at different periods to make make sure it doesn’t warp. After my original quarter panel, it had in total five different sections welded onto it and all of them were braised on. And the only experience I have with that holy smokes, I ruined a good dozen blades trying to cut through it. 

[Leghome]

either one works well yo9u just don't won't to over heat it. I usually do a few tacks to hold it in place and then finish it up with the short welds. There may be better mways of doing a quarter panel but this had always worked for me

[jft69z]

What are you using to weld the quarters on? MIG with shielding gas, MIG with flux core wire, brazing with brass rod?

[GideonBowles]

1 hour ago, jft69z said:

What are you using to weld the quarters on? MIG with shielding gas, MIG with flux core wire, brazing with brass rod?

MiG, with shielding gas!

[GideonBowles]

1 hour ago, Leghome said:

either one works well yo9u just don't won't to over heat it. I usually do a few tacks to hold it in place and then finish it up with the short welds. There may be better mways of doing a quarter panel but this had always worked for me

Alrighty, thanks for the quick reply and info!

[Blackhawk]

Do a few small welds, clean them up until they're almost flush, then put a dolly behind the weld and tap it with a hammer. You should hear a ringing sound if you have them on the same portion of weld. Welding shrinks metal, so this hammering stretches it back out a bit to avoid the sucked in seam that you'll get otherwise. 

[Leghome]

38 minutes ago, Blackhawk said:

Do a few small welds, clean them up until they're almost flush, then put a dolly behind the weld and tap it with a hammer. You should hear a ringing sound if you have them on the same portion of weld. Welding shrinks metal, so this hammering stretches it back out a bit to avoid the sucked in seam that you'll get otherwise. 

i knew there was more to it than I posted but it has been a few years since i did any serious body work Thank you for refreshing my memory