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Author Topic: Welding Gas Tanks  (Read 5283 times)

Offline XS750AU

  • Posts: 317
Re: Welding Gas Tanks
« Reply #50 on: Sep 07, 2017, 21:55:56 »
The oxy welding is all wrong - I would  have thought they would not have much hair left!!!!!  ;D
Probably would look more like this.  :o
« Last Edit: Sep 11, 2017, 06:53:26 by XS750AU »
“Engineering is the art of being approximately right rather than exactly wrong.”

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Offline Hurco550

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Re: Welding Gas Tanks
« Reply #51 on: Sep 08, 2017, 00:18:34 »
I lost an awesome beard to an oxy acetylene torch once =/

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Offline crazypj

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Re: Welding Gas Tanks
« Reply #52 on: Sep 08, 2017, 11:06:17 »
I've gotten a of a lot of belligerent people to leave the premises with an oxy torch  ;D
CB750 fork leg also works  ;)
« Last Edit: Sep 08, 2017, 11:09:01 by crazypj »
'you can take my word for it or argue until you find out I'm right'
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 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
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Offline Pinky23

  • Posts: 19
Re: Welding Gas Tanks
« Reply #53 on: Sep 10, 2017, 07:22:47 »
I think that when it comes to welding, especially on things like tanks and body work there is nothing really that critical. A lot of good info in this thread but maybe a little overwhelming. Just buy yourself a TIG and get welding practice is really the only way! Watch some YouTube videos and ask loads of question. R-Tech do good welders based in the uk.
PS before I get loads of grief I'm a coded welder with codings in stick, MIG, TIG, on aluminium, stainless and mild


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Offline hangar21

  • Posts: 6
Re: Welding Gas Tanks
« Reply #54 on: Sep 10, 2017, 22:27:24 »
I have an old tank I'm repairing.  All welds with oxy-acetylene, here's a pic

Offline Ryan Stecken

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Re: Welding Gas Tanks
« Reply #55 on: Sep 11, 2017, 06:44:05 »
So guys I have great news!
I think I found a machine I´m going to buy!

Had a "lecture" last weekend, where I was able to weld stock and TIG.
It was amazing!
What a difference it is between these two techniques...
The lecturer advised me to buy his machine which is a "Stahlwerk 200 WIG", which is capable of AC/DC welding, pulse, foot pedal...not a pro machine but definitely enough to get me started (200 Amps).

http://www.stahlwerk-schweissgeraete.de/de/acdc-wig-200-puls-s/stahlwerk-acdc-wig-200-puls-s.html

Offline Hurco550

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Re: Welding Gas Tanks
« Reply #56 on: Sep 11, 2017, 10:17:22 »
So guys I have great news!
I think I found a machine I´m going to buy!

Had a "lecture" last weekend, where I was able to weld stock and TIG.
It was amazing!
What a difference it is between these two techniques...
The lecturer advised me to buy his machine which is a "Stahlwerk 200 WIG", which is capable of AC/DC welding, pulse, foot pedal...not a pro machine but definitely enough to get me started (200 Amps).

http://www.stahlwerk-schweissgeraete.de/de/acdc-wig-200-puls-s/stahlwerk-acdc-wig-200-puls-s.html

AC/DC with a pedal is a great thing. Sounds like your getting the ideal machine. May not last forever, but for what your doing it should be great!
Keep er' Between The Ditches!!!

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1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline Ryan Stecken

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Re: Welding Gas Tanks
« Reply #57 on: Sep 11, 2017, 10:26:35 »
It will be around 700 Euroish with all the stuff I need and a 20l argon gas bottle.

Would you guys recommend pure argon?Just checked out a video and did not recommended mix...

The guy that held the lecture showed some welded gas tanks and even a crazy aluminum seat piece he built and welded with that welder, so I guess for a starter I should be good.

What fillers would you guys recommend for mild steel, aluminium and stainless?

Cheers!

Offline Hurco550

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Re: Welding Gas Tanks
« Reply #58 on: Sep 11, 2017, 11:57:41 »
yes pure argon. If you run out of power and need a little more penetration into some thicker aluminum, pipe in a bit of helium.

ER70S-6 for steel. you can use this to weld anything from mild 1018 crs to A36 hrs to chromoly.

Usually 5183 for Aluminum (but varies depending on grade to be welded)

and 308L is a good all around for stainless, but again varies depending on base metal
Keep er' Between The Ditches!!!

1976 BMW R90/6 farkilitious: http://www.dotheton.com/forum/index.php?topic=74349.msg882477#msg882477
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer

Offline der_nanno

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Re: Welding Gas Tanks
« Reply #59 on: Sep 11, 2017, 15:34:55 »
TIG is only done with pure Argon, unless you go with Helium, which is a nice way of cheating to get more heat into aluminium, but can't be used for normal* TIG-welding. (IIRC it only works with AC...)

With regards to filler: I use ER70 for stainless, ER302 (IIRC) for mild steel and now comes the tricky part, there's no generic filler for aluminium, so you have to know which one you use, but generally a 4000-series does 80 percent of the work for me. As you asked me about welding brass, I've checked some old notes form college and nope, never tried it.

*Normal means steel for me.

Cheers,
Greg
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