Welding Aluminum with Gas and a Torch

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Join The Welding Geek as he dives deep into everything you need to know when it comes to welding aluminum with gas and a torch.
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29 дек 2022

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Комментарии : 146

@theshed8802 Год назад

When I did my apprenticeship as a mechanic, I had to oxy acetylene weld aluminium in order to pass welding. I've only done it a few times since. One of the more difficult parts of this process is knowing when you are getting close to welding temperature. You can use a match stick as a temperature crayon. You drag the back end of the match across the material. It will leave a black line when you are close to temperature. You can also use a bar of soap. Same thing happens. Have had many arguments with 'welders' on mine sites about gas welding aluminium. Just about everyone that I have met thinks it's impossible. Would like to see you do the same video with oxy acetylene. Regards Greg

@dudleysmith5111 6 месяцев назад

Mixing chamber design and tips seem very close to, if not a copy of, the Henry/Cobra 2000.

@JamesSeale2575 Год назад

So many different ways to weld aluminium. Neat stuff really enjoyed that.

@tumbleweedoutdoors1776 Год назад

One thing I’d like to point out for the new welders is that he says that gas welding is extremely picky. What I’d lick to add to that is that welding on aluminum in general is picky. The best way to fight this is to always brush in one direction when preparing the metal and clean it from other contamination along the way. Patina that covers the aluminum has a higher melting point than the aluminum underneath.

@drd1924 Год назад

Good tips, I've only TIG welded Alum. and was also told oxides will start to form within 2 minutes of cleaning it. So don't clean it then go take a lunch break lol.

@michaelbrinks8089 6 месяцев назад

🤔 could you weld thin gauge aluminum with a small butane torch & aluminum mig welding wire dipped in the correct flux ?

@LifetimeinWelding Год назад

FYI in all the UK welding textbooks Oxy/acetylene recommended to use a carburizing flame for welding aluminium.

@shamancredible8632 4 месяца назад

well you people drive on the wrong side, so what do you know

@LifetimeinWelding 4 месяца назад

@@shamancredible8632 i was giving you a chance to rethink your advice Which does not follow the current accepted welding procedure for O/A welding aluminium . By pooling the advice improve the overall knowledge. With this as the reason for your channel little is gained by “the wrong side of the road “ FYI. 25 years as welding lecturer Further education. Mig. Tig. MMA Oxy/A

@ls2005019227 Год назад

Not sure that I'll ever gas weld aluminum....but I've always wondered about it, & a lot of great information in this video. Thanks!

@BruceLyeg Год назад

I used to wash my hands in bowls of acetone several times a day when I worked at a fiberglass shop. I'm paying for it though, it's definitely caused some serious health issues

@JimConnelley Год назад

If I'm tacking with TIG, I'm welding with TIG. Sorry. ... But the hydrogen torch is interesting.

@murmenaattori6 Год назад

Yeah I thought this technique is primarily for cast aluminum, as thicker castings have high thermal mass and need no tacking to repair cracks.

@1nvisible1 Год назад

*re: tacking, demonstrater appears to be touching tungsten to aluminum much longer than in a lift arc scenario, are they lifting at all?*

@natenate2280 3 месяца назад

tacking with tig can be nice for stuff that is getting mig welded but you dont wanna feather the tacks after

@zachcrowl8504 Месяц назад

You can tack with a torch. I guess he just can’t

@natenate2280 Месяц назад

@@zachcrowl8504 tig gives better heat control for tacks this is basic shit

@theodoredugranrut8201 Год назад

Thank you. Always informative and fun. Central California watching

@bonniedobkin6948 Год назад

This is how the famous “REACTOR” car body was lovingly fabricated in the 1960’s. , it was featured on Bewitched & StarTrek and many other tv shows of the time 👍🏻

@BikerBenny 11 месяцев назад

Man weilders have incredible shoulder strength and dexterity holding a touch steady for long periods of time!

@wildbillkelso2083 Год назад

Excellent presentation!!

@k.c.maclachlan3227 Год назад

Been looking forward to this video! Flame weld great for exhausts too

@7018dreams Год назад

Very cool! Great skills and useful information

@williamwalters3796 Год назад

Why didn’t they show the weld bead in an up close shot?

@k.c.maclachlan3227 Год назад

they did in previous video when he was introduced

@theweldinggeek Год назад

Yeah sorry the close ups got cut but I have some over on the weld app under the welding geek

@williamwalters3796 Год назад

@@theweldinggeek thanks!

@GRich120 Год назад

The close up is now in the video that is in the mobile app. Go check it out now. Matt also does a strength test to show you why he gas welds.

@ypaulbrown Год назад

Fantastic Video.....thanks for sharing your technique, Paul in Orlando...sharing with all my welding friends...

@JMRSplatt Год назад

That looks difficult; thanks for showing. I'm cool with SMAW and recently added MIG.. but yikes!

@drewfleming7065 Год назад

A close up shot of the finished weld would have been nice. Other wise good info

@theweldinggeek Год назад

Yeah sorry the close ups got cut but I have some over on the weld app under the welding geek

@cheeseymccheese7249 Год назад

Been waiting for this!!! Thanks so much for doing it!!

@welderdude1 Год назад

Interesting. Most Al stuff I do is high volume spoolgun. Truck frames and floors are thick amd dirty so the 100% cleaning action of spoolgun saves a lot of time.

@mrjdvolk 8 месяцев назад

To prevent the blowouts, I like to put about a half inch tack on one end, then work toward that end.

@mattsan70 Год назад

why no close up reveal at the end?

@theweldinggeek Год назад

Yeah sorry they got cut but I have some close ups over at the weld app under the welding geek

@mackdog3270 Год назад

Good video, informative. Is it possible to torch weld aluminum without needing to sell a kidney? My doctor tells me I need the one I have left after selling the first to buy the oxyacetylene setup. Thanks

@cdrom1070 Год назад

DHC2000 torch does it but its not cheap either and you need strong hands for that thing like upper body gym stuff if you work standing

@mgardnerflipflopmachinist 3 месяца назад

Great Video. What Harris Flux are you using? Can't find any that Harris makes currently.

@derekderexson248 Год назад

With my time as a Airframe mechanic. We never weld on aircraft. Mind for a few items that parts are not available, TiG , and NDT. Usually Titanium , stainless steel alloys, Inconel, maybe a few others. In the older days they built the Airframe from 4130 all gas welded. They wrapped with thin fabric and used a resin.

@drd1924 Год назад

What does NDT mean? not familiar with that term

@michaelsimpson9779 Год назад

@@drd1924 Non Destructive Testing

@russbell6418 Год назад

Yep. Haven’t welded on my aircraft since… last year. Seriously, lots of 4130 airframes out there, and nearly all engine mounts. And tig doesn’t normalize much cross-section. (Still a lot of welded aluminum fuel tanks out there too. Usually bent to weld a doubled edge, rather than butt weld or fillet. Much simpler with a torch to do a doubled edge.)

@HemiJoel 7 месяцев назад

Question: If I have a TIG to tack with, why not finish the weld with TIG? If I don't have TIG, only a gas torch, what is your recommended technique for tack welding?

@LifetimeinWelding 2 месяца назад

Over 3mm th. use mig. Push/ pull wire feed or real on gun. Down side of OA is use of corrosive flux. So it's only for butt & outside corner joints. Fillet. Lap. are flux traps.

@t13fox67 Год назад

Can you weld some low alloy or mild steel with the hydrogen torch system?

@johnny89racer 7 месяцев назад

What size tip, verses material thickness? Are there different grade filler rods for 6061, 3003 & 5052? Thanks.

@waylandforge8704 Год назад

Great presentation and I learnt a lot. Could you show me how to weld alli with oxy/propane please.

@cdrom1070 Год назад

haha try O/A first its hard enough I suspect you will feel severely trolled

@luciusirving5926 Год назад

I'd like to see a twin carbon arc torch being used for aluminum welding. Of course flux is allowed. I did however see rocks get molten by a single carbon arc at DCEN.

@genethomas4293 Год назад

Welding aluminum is relatively easy using oxy/acet if you have access to flux containing flouride as a major component. Lately I notice it's not available, and if you have a siurce olz let me know. thx

@AlanAguillon-cf7im 2 месяца назад

Does the acetylene can work like that ? Just asking bro

@theoriginalpauly 10 месяцев назад

Why gas weld if you have a TIG welder set up for aluminum? How do you gas weld if you don't own a TIG?

@SergioPena20 2 месяца назад

I was thinking to myself “why the hell would I gas weld if I already had a TIG welder…”

@cdrom1070 Год назад

btw if you anodize it after gas welding your gonna make the skin tough and I read what that does is make parts that suffer internal cracks. If you need it flexible after gas welding I believe the proper coating is alodine and paint. I read thats why they don't annodize certain plane parts. Sudden failure after many stress cycles due to the anodization and paths of stress.

@JRock17991 Год назад

Very cool. I appreciate you showing this. What circumstances would you gas weld aluminum instead of TIG?

@williamwalters3796 Год назад

When you don’t have a TIG machine.

@theweldinggeek Год назад

I use it on seams of dragster and funny car fuel tanks it’s a better weld then a tig weld for that application

@theshed8802 Год назад

Panel fabrication and repair. Both the weld and the surrounding parent metal are annealed, making further shaping and finishing easier, along with reduced chance of splitting.

@cdrom1070 Год назад

haha man I have O/A for a while. I like brazing and even steel welding but aluminum welding on it was so hard. I started to think I was some how challenged but I finally got a tig and it is EASY in comparison. I don't know much about it but lets say making something that looks right is like... 10 x easier on a tig. A DHC2000 torch helped but still you really gotta practice doing it. Get the flux from that british company and make a flux tray and its better. It feels good to do and know though. And as always being able to work without electricity is wonderful. You know in case you need to fix that B52 that lands on the high way in the middle of a nuclear war when the lights are out.

@cdrom1070 Год назад

And I tried O/H and O/A I liked O/A better O/H made stuff look mega crusty but I just rented a tank to play around a little

@k.c.maclachlan3227 10 месяцев назад

I have a DHC2000 torch, did you need the special lenses to see? I have O/A gas

@cdrom1070 10 месяцев назад

no idea never got one . their expensive lol. at least the ones for sodium flare. @@k.c.maclachlan3227

@jamespolucha8790 8 месяцев назад

What about oxygen propane? Have you tried this set up yet ? I watched a guy make an aluminum motorcycle gas tank with oxygen propane

@adambergendorff2702 Год назад

Wow! All BS aside I enjoyed this video as much as any welding video I've seen, your delivery and weld shot were excellent, I have been welding for many years but there are always new processes to learn from. What is the main reason you choose to weld with gas vs tig. I have not ever heard that question answered. I built a Gas tank for my motorcycle with 3003 only time I ever used it, no body filler was needed when it was finished, only about 40 hrs of work.😂

@theweldinggeek Год назад

A gas weld seam holds up better to shock and vibrations compared to a tig welded seam, it’s flexible and strong at the same time

@chinaskibukowski7747 Год назад

You should always hold a lit torch close to your face and eyes without protection. It's the smart thing to do, right?

@theoriginalpauly 10 месяцев назад

Yeah, sure, just hang out with a burning torch. No biggie. WHAT COULD GO WRONG??? (I say as I look at the Nike swoosh scar on my forearm caused by hanging out with a lit torch.)

@alaskalife8009 Год назад

I would like to see how soft the aluminum is after doing this. Can you weld a boat hull or would it not stand up to the beating after. Is this a project you are willing to take on to show durability of the weld method?

@GRich120 Год назад

@Alaska Life If you watch the extended version of this video in the WELD app, you will see Matt put the weld through a stress test and show you how strong the weld really is.

@cdrom1070 Год назад

@@GRich120 the welds are like flexible. I welded together a angle piece out of two aluminum flat bars and while the weld looked pretty bad I could bend it back and forth with a hammer. Inverted angle piece...

@ZOREDA100 8 месяцев назад

Technic likes TIG!!!👍🏼

@justinbouvier132 Год назад

Wish he showed that weld up close…

@theweldinggeek Год назад

Yeah sorry close ups got cut but I have some over on the weld app if you where curious under the welding geek

@GRich120 Год назад

The close up is now in the video that is in the mobile app. Go check it out now. Matt also does a strength test to show you why he gas welds.

@user-vm6mv8il6s 7 месяцев назад

no luck to weld aluminum by torch , how you did it ? no flux either .. ,

@michaelallen1432 5 месяцев назад

The regular green goggles wont filter the sodium glare. You need either cobalt blue or purple didymium lenses to block yhat or uou cant see what your doing. Those lenses however eont block the ir. The lense manufacturer of the didymoum lenses specifically says they are not sufficient for welding. I caljed them and they explai ed tvst you have to back it up with the green ones. Then your good. You can use tge round cobalt or didymium ones in the green welding goggles eith the round lenses (the crazy inventor goggles) or you can use the square ones in the appropriate goggles. Just put both the green and blue or green and purple in. I use a a pair of Bolle Tracker goggles in #5 green with a "prescription" insert, but i just had them put plain didymium purple lenses in the insert with no prescription.

@beachboardfan9544 Год назад

Why would you gas weld AL instead of tig or mig weld it?

@jeepwk6.5L Год назад

Not everyone has a machine capable of welding aluminum

@michaelriccardi424 Год назад

@@jeepwk6.5L he's tacking it with a tig welder

@jeepwk6.5L Год назад

@@michaelriccardi424 yeah I’ve never seen that done before. 😂 anyone I’ve ever seen gas weld use the flame to tack it also.

@michaelriccardi424 Год назад

@@jeepwk6.5L I guess its just for the demonstration

@jeepwk6.5L Год назад

@@michaelriccardi424 beats me, lol

@rosstituteuk Год назад

Reminds me of the Cobra torch.

@GRich120 Год назад

Funny you say that. The designer of the Blue Feather torch modeled it after the Cobra torch and made some improvements on the old design. Nice eye, man!

@k.c.maclachlan3227 Год назад

@@GRich120 be careful man, some old school guys will kill you if you say a cobra torch can be improved on hahaha

@jsh3234 Год назад

Also the Henrob, or Dillon torch.🙂

@michaelsimpson9779 Год назад

Came here to say that

@cdrom1070 Год назад

good torch but its heavy if you are welding standing with no arm rests up you need to be going to the gym to really maintain a bead for a long time, I had problems. Its like that scene from terminator 2 where he is holding the radio on top of the barrel.

@Eduardo_Espinoza Год назад

So you will still need a TIG welder?

@cdrom1070 Год назад

unless you want it 5-10 times harder to do yeah.

@williamfloyd7687 11 месяцев назад

Would like to see a pass on a auto panel

@trisst9370 Год назад

a close up would be necessary for me to determine the quality of your work. But otherwise pretty nice.

@williamdjernes7432 9 месяцев назад

Doesn't start welding until 10:20 in the video. Also doesn't show finished weld.

@kor_nellione Год назад

Welding Aluminum with Gas and a Torch, but before you need tack it with TIG))))

@cdrom1070 Год назад

you can tack it with gas but its some what harder. Like what you would probobly do if you only had gas is first tack it, then clean it up with like a acid, then weld it over. Its easy to get like soot contamination and stuff on it everything while your tackin with o/a. And the other problem is you get it mad hot so its like after you tack the first one you need to realign it probobly and then tack the second one and maybe work on it a little bit. Tig does it clean and easy.. O/A aluminum is weird because you see it really haul ass due to thermal expansion.... that torch puts ALOT of heat into it.

@SomeGuyInSandy 7 месяцев назад

A blue lens works best

@Van-tastic Год назад

Sure seems like an undisclosed sponsored video… 😏

@apenza4304 Год назад

Back to the old days isn’t always the best way.

@cdrom1070 Год назад

no electricity is nice ! soft is nice. But its hard to do.

@brianfreeman3676 8 месяцев назад

If a person has a tig setup, they're not going to try to weld it with a torch.

@t13fox67 Год назад

Is there still alot of gas welding these days?

@cdrom1070 Год назад

when I talked to the weld store central around here they said its like old timers that do it for fun. A few people know how to really do it good but they mostly sell big H2 tanks for gas mixers in volume welding... alot of companies have custom gas mixes with H2, or require a few diff mixes , so its easier to buy a H2 tank and manifold/mix it with other stuff (its usually a low % concentration).

@joachimsingh2929 9 месяцев назад

What? He did more tig welding than gas lol.

@iantherealg Год назад

Interesting, but really kind of silly to tack with the tig and then finish with a HYDROGEN torch. My gas supplier laughs at me when I ask for hydrogen

@cdrom1070 Год назад

I had a leased tank because I thought I could weld Al with it but I liked O/A better so i gave it back. The flame is fucking LONG from a O/H torch. Like with O/A I got something that looked kinda like butter but with the hydrogen it looked like warts. They say its better but something was off for me.. maybe if your advanced skill level. But I mean a hydrogen tank not the stochiometric electrolysis mixture. You need a tank for O/H welding properly AFIAK. Its like a light saber lol, I burned stuff at a distance that was fine with O/A (ear protection on the shelf)

@davidspin5353 Год назад

Man I wanna see a dude lay a bead with Oxygen/Actelene and a #1 torch. You have so much in new tooling you could have bout a used Dynasty...

@meatcreap Год назад

Right? What's the point of this video?

@cdrom1070 Год назад

@@meatcreap its a sick cheap technique that won't break on you if you master it.

@blueweld75 Год назад

Rad video dudes but not to be a dick. But can you dudes show the weld at the end of the video? I want to see what the weld looks like dudes.

@theweldinggeek Год назад

Yeah sorry the close ups got cut but I have some over at the weld app under the welding geek

@blueweld75 Год назад

@@theweldinggeek oh, very rad dude! I just never seen a gas AL weld. I have seen gas brazed, tig, stick, mig but never a gas weld. Thanks dude.

@timmwhite9218 Год назад

You've got the Tig setup, why not just Tig weld it? Spending all that extra money for gas, regulators, flashback arrestors, hoses, welding torches, and eye protection - seems pointless ! 🤔

@theweldinggeek Год назад

We have found a gas welded seam holds up far better then a tig seam for a fuel tank because it’s flexible and strong it can hold up to the massive explosions that happen in top fuel drag racing and also just normal abuse seen in racing in general

@SpencerHHO Год назад

I think you get a better grain profile within the metal and potentially a better weld there are also niche applications where TIG welding might not be an option. TIG welders give off a lot of EM and other radiation that can interfere with or harm sensitive electronics. Besides this is just educational content demonstrating how a certain process works not arguing it's the best process.

@cdrom1070 Год назад

no electricity, quiet, cheap. He put the ritz on it but you don't need the expensive stuff. And for doing aluminum its still 10000x less PITA then dealing with Al braze.

@joachimsingh2929 9 месяцев назад

Jacking up your liver from acetone? Does he know that we produce our own acetone? You need to use gloves on all solvents BUT acetone.

@imechura1 Год назад

Neat video but I am confused why anyone would ever do this. Why spend a few thousand dollars on new torches, new glasses and special lenses just to warp, I mean weld aluminum when you already have an AC/DC Tig welder? It just does not make sense to me.

@cdrom1070 Год назад

he is showing the best way you could do it with a cheap torch and normal glasses (even plasma cutter blue goggles). He put the ritz on it. DHC cobra torch is nice and cheaper but you really don't need much if you have the technique. And its sick because its a really soft part and its quiet. Not everything needs stiff parts.

@geoffisaac3511 Год назад

What a load of crap I was told how to do that in 1968 as a apprentice in the UK

@k.c.maclachlan3227 Год назад

interested in what they taught you? you don't just mean bronze brazing..?

@theshed8802 Год назад

I was taught this in the early 80's in Australia. Was a standard part of a mechanics apprenticeship back then.

@k.c.maclachlan3227 Год назад

@@theshed8802 for radiator repair?

@theshed8802 Год назад

@@k.c.maclachlan3227 you never saw aluminium radiators back then. They were copper or brass. Cylinder heads and panel repair, rocker covers, manifolds etc

@k.c.maclachlan3227 Год назад

@@theshed8802 I'm a fitter we did brazing as part of apprenticeship but even plumbers dont use gas brazing anymore. I use brazing now to repair throttle cables etc

@dxt7339 Год назад

Good video, but can you explain how this guy, ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sZkzG0wOexI.html, welds aluminum with home made rods from unusable aluminum parts and welds with oxy-acetyl without cleaning anything except after he starts heating and just scrapes the base metal with a steel rod and then starts welding with the home made aluminum rods.

@jondavidmcnabb Год назад

Everything was great until the cut away at the end. If you are gonna talk about it in the video then show it. Otherwise this is just another in a long line of marketing videos......

@ljackson8220 Год назад

I'd use TIG. Blue Feather Straight Grip and Pistol Grip Torches + 7 Tip Kit = $750.00

@chadkennedy529 14 часов назад

Just tig it for god sake.

@Cxharlez Год назад

But why not show a close up of a finished work piece?? Because the green light wasn't showing what we wanted to see The video was okay ...but the last part flopped I mean you've got to show a finished work piece to convince people that they can actually try this out.. But it all seems you just wanna cash out on yours adds.

@theweldinggeek Год назад

Yeah that part got cut for some reason 🤷🏻‍♂️ I have some finished welds over on the weld app so you can see what it looks like if your curious

@GRich120 Год назад

6 minutes of additional video WITH Matt showing the finished welds and doing a stress test. Go check out the longer video in the mobile WELD app.

@cougarbaitkenyan9252 Год назад

Final weld appearance, penetration, and test ? What the flux? Didnt talk about that at all. CLICKBAIT

@theweldinggeek Год назад

Yeah sorry that stuff got cut but I have some close ups on my profile over on the weld app

@gerarddedobleleer2313 Год назад

T'es un amateur vu comment tu tiens ta torche lorsque tu pointes tu dois mettre du métal d'apport surtout sur l'aluminium et mettre aussi de la contrainte. Quel intérêt de pointer au TIG et de souder au chalumeau après?

@cowboybeebop3451 Год назад

Gonna try to weld my ebike back together, I wrecked bad and handlebars ripped out where the rivet is. Not the weld the actual metal stretched and ripped.

@gerarddedobleleer2313 Год назад