Hey guys,
I`m new to the forum so first of all HI
Now to my question:
I have to weld a box with the following measurements:
29x17x9 inches with the material being 3/8 inches thick. It`s going to be welded with 7018 electrode.
Is there any data or if you have any information on the correct sequence of welds to prevent or at least minimize distortion?
What welding projects are you working on? Are you proud of something you built?
How about posting some pics so other welders can get some ideas?
How about posting some pics so other welders can get some ideas?
- TRACKRANGER
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Owr,
Hi, and welcome to the forum.
Do you need to weld inside and out?
When you say 'Box', will it have 6 sides welded (i.e. is it a sealed cube?)
The most important thing to reduce distortion is to tack it together initially, by getting good fit-up and stitching it together with plenty of distributed tacks. Then go about welding all of the sides, again with staggered welds.
if it's sealed you'll have to take some consideration for internal pressure issues.
Others will chime in with great ideas too, hopefully.
Trev
Hi, and welcome to the forum.
Do you need to weld inside and out?
When you say 'Box', will it have 6 sides welded (i.e. is it a sealed cube?)
The most important thing to reduce distortion is to tack it together initially, by getting good fit-up and stitching it together with plenty of distributed tacks. Then go about welding all of the sides, again with staggered welds.
if it's sealed you'll have to take some consideration for internal pressure issues.
Others will chime in with great ideas too, hopefully.
Trev
EWM Phonenix 355 Pulse MIG set mainly for Aluminum, CIGWeld 300Amp AC/DC TIG, TRANSMIG S3C 300 Amp MIG, etc, etc
Welcome. I agree with using plenty of tacks and staggering your welds. I'd just like to add my emphasis to the importance of proper fit up. In my experience the fit up and joint prep was the key to a good result. Good luck and let us know how it turns out.
We are not lawyers nor physicians, but welders do it in all positions!
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- AKweldshop
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Weld it all up except for (1) spot, maybe 1/2" long.
Let the whole thing cool to room tempature.
Than weld up the last bit.
Stagger your welds, but it won't warp much.
Best regards,
~John
Let the whole thing cool to room tempature.
Than weld up the last bit.
Stagger your welds, but it won't warp much.
Best regards,
~John
Just a couple welders and a couple of big hammers and torches.
Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
Men in dirty jeans built this country, while men in clean suits have destroyed it.
Trump/Carson 2016-2024
Well, it`s all welded and there is almost no warpage. I welded the corners first and then welded the center part of the longer side then moved to the shorter side. I welded those welds from the center out to the corners and moved diagonally for the next weld.
Then flip it over, repeat and eventually weld the rest on the longer side moving to the corners. That`s all folks
Then flip it over, repeat and eventually weld the rest on the longer side moving to the corners. That`s all folks
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- Box3.jpg (79.79 KiB) Viewed 2473 times
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- Box2.jpg (51.29 KiB) Viewed 2473 times
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- Box1.jpg (35.35 KiB) Viewed 2473 times
- TRACKRANGER
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Are we allowed to ask what's it for?
EWM Phonenix 355 Pulse MIG set mainly for Aluminum, CIGWeld 300Amp AC/DC TIG, TRANSMIG S3C 300 Amp MIG, etc, etc
I'm sure it's just my eyes playing tricks, but in the first photo it looks a bit like a crack near the top of the vertical weld.
We are not lawyers nor physicians, but welders do it in all positions!
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Miller 625 X-Treme
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Miller Dynasty 280DX
Lincoln 210 MP
Miller 625 X-Treme
Hobart Handler 150
Victor Oxygen-acetylene torch
Miller/Lincoln Big 40-SA200 hybrid
- Superiorwelding
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I will back you up, looks like it to me as well.xwrench wrote:I'm sure it's just my eyes playing tricks, but in the first photo it looks a bit like a crack near the top of the vertical weld.
-Jonathan
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- Braehill
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I think they're talking about to the left of your circle. It looks like the slag may have puked down over your other weld.
Len
Len
Now go melt something.
Instagram @lenny_gforce
Len
Instagram @lenny_gforce
Len
It`s just metal poured over from the heat. It was grinded out and welded over with no problem whatsoever. The part under the bulge on the left is actually millscale. Should of grinded it before welding and use 3/32" instead of 1/8" but wanted to weld a bit hotter on the corners. A crack that size wouldn`t of disappear after using flap disk on it just to deburr.
- Superiorwelding
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Don't take this crack question as your project is bad. Looks very good to me. Just thought that this looks like a crack. Pic is blurry but this is what I was referring to.
-Jonathan
-Jonathan
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Instagram- @superiorwelding/@learntotig
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https://www.superiorweldandfab.com
https://www.youtube.com/+SuperiorWeldin ... ATHANLEWIS
Twitter- @_JonathanLewis
https://www.learntotig.com
https://www.superiorweldandfab.com
https://www.youtube.com/+SuperiorWeldin ... ATHANLEWIS
I never thought of it that way. Back to the crack it is actually a millscale, but the picture is not of good quality so maybe that`s why it looks like it. As I said earlier, crack like that doesn`t disappear after using flap disc on it just for deburring the edge. The tie in wasn`t perfect so there was a little undercut on the sides but nothing major since the weld is already overdone for it`s application.
Since we are already talking about weld cracks here are some pics of cracks on aluminum gates for track&field. The wind caused the gates to break.
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- Otto Nobedder
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Agreed! Serious "lack of penetration" issues. Those welds all appear to be (poor) cap/crown welds on metal that was not prepped for the weld.dsmabe wrote:Looks like weld material just sitting on top of everything.
Steve S
Sounds like a good hobby. I'm always scrutinizing welds when out and about. Drives my friends nuts!Owr wrote:I just like to take pictures of welds that are interesting to me. Sometimes you should just use stick for stainless:
We are not lawyers nor physicians, but welders do it in all positions!
Miller Dynasty 280DX
Lincoln 210 MP
Miller 625 X-Treme
Hobart Handler 150
Victor Oxygen-acetylene torch
Miller/Lincoln Big 40-SA200 hybrid
Miller Dynasty 280DX
Lincoln 210 MP
Miller 625 X-Treme
Hobart Handler 150
Victor Oxygen-acetylene torch
Miller/Lincoln Big 40-SA200 hybrid
- weldin mike 27
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Post well and truly hijacked.
Mick
Mick
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- Otto Nobedder
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That fun-house mirror pic of you does, I suppose, qualify as a hijack...weldin mike 27 wrote:Post well and truly hijacked.
Mick
Steve S
- weldin mike 27
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I can`t remember how many times I have seen fences welded outside with a tig procedure. People pay lots of money for sth that is not really safe to use.
I remember one time when one of the construction sites supervisor was explaining to me how he sent some welder off the site because he was welding ss pipes with stick - outside. He said then we did it the proper way - with tig, of course without any wind protection.
I remember one time when one of the construction sites supervisor was explaining to me how he sent some welder off the site because he was welding ss pipes with stick - outside. He said then we did it the proper way - with tig, of course without any wind protection.
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