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Let's have ANOTHER go at aluminium welding / Brazing Low temp Aluminum rods | With good results!
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- Опубликовано: 30 апр 2020
- Gday RUclips.
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This is second part of the Aluminium welding/brazing videos
The first can be found here • Let's have a go at alu...
But i feel this video makes that one redundant so if you already seen this one give it a miss.
My journey with these rods started when i got "easy home aluminium welding" and "Aluminium welding no told needed" adverts.
These adverts had big claims about these brazing rods including no skills required and results stronger than base metal ect ect...
In the first video i purposely purchased them with no further research had a go, in order to check if its something as easy as they claim.
I was close to results but the comment section was blown up with people telling me where i went wrong.
So in this video i try the mains points including
-Less heat on the flame of the torch
-Insulate the work area to reduce heat sinking issues
-Chemically clean the material as-well as mechanically remove the oxide layer.
This produced some awesome results!
I also realised on this second attempt that its important to pre heat the rod a little bit, but to ensure all the main heating is done on the work piece.
Too much heat on the rod and you fail, not enough and the workpiece will start to breakdown before the rod melts.
This seems to be the sweet spot that takes the "knack" to know.
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A lot of questions about gas coming in, I made a short vid on it here ruclips.net/video/uptcLU5mTsg/видео.html
Knowing how to weld, solder and braze in general is a start. You're learning and trying to teach at the same time so I respect that. Usually once you get it all heated you go and keep your heat in front and you got it
I had a similar experience when i first used them, they do work great once you have the knack! Good to see someone work them out and show how useful they are, well done!
You've convinced me to try it again after the failed first attempt, cheers bloke 🤙
This stuff really has a steep learning curve! I’ve had to fail many times with it to find the tricks that make it work!
He is a good honest presenter. I enjoyed this.
Thanks for watching !
Excellent vid. I have both sills off an ex-MOD Land Rover with missing bracket tabs and this will do the job really well. Thanks!
Stick Welding Aluminium video coming next to cap off this endeavour. If you feel the need you can watch the previous video but this one will suffice! Cheers and Thanks for watching!
Great video and tips. I'll now have more attempts but without direct flame on the rod and less heat too. Thanks!
Glad you said you did a "180" and not a 360. Keep going.
I bought these rods couple of years ago, they told me then it was important to use stainless steel brush before.
I have found that not all rods melt at the advertised temp. Using the cheaper rods generally melt at a higher temp and that is why the can was giving you problems. Good job.
Thanks for making a video on this.
Your honesty is amazing!
I appreciate that!
Great video, saw a few other vids on this stuff and they had mixed results, thanks for showing how it's done.
Good job. I’m getting ready to do small little aluminum weld myself. Looks like if you can get the heat right the joint is plenty strong
Thanks mate, I have been thinking about this aluminium brazing business lately, never done it before but after your video today I will give it a go. Cheers
It can be tricky, but can be really useful!
congratulations, you pulled out king arthurs sword on video on youtube as far as metal joining goes. This process has hurt the heart of most people that touched it.
Nice vid mate! Always wondered about these things so you've convinced me to give em a go!!
Thank you for trying harder! You changed my mind!
Yeah turn around !
@@Finntheweekendwarrior ppp
That was as honest a video as you could ask for. Well done. You know your stuff. Anyone giving you a thumbs down or bad comment are just ignorant arsses. Great job.
How long does it take for it to go smooth, mine just doesnt wanna stick it straight up falls down
I'd say you got some pretty awesome results!, the problem I believe with the first can is due to the fact you were using MAPP Gas which is too hot for aluminium of that thickness thus melting, I believe if you Used a gas with a lower operational temp you would then meet with success with the can. These rods are great in a pinch!
Was thinking of buying some of these you sold them to me ,i am a chef no construction training at all . You have sold them to me though ,getting them off Ebay now to fix splits in the cheap boat that stays down the creek might be able to fix the transom in stead of rowing as well .We shall see a bit of practice first . Cordless wire brushes on an impact gun clean aluminium fixed new(second handy) motor goin onto the boat at the hut .
Project Farm did a test with several different brands, and found a significant difference in melting points and performance. You may want to try a different brand/supplier.
Yeah, 2nd video nailed it for me. Liked the failure, followed by success. Shows it how it really is.
Got to give it a go and will checkout the stick video as well now I have a dc welder.
Cheers.
Well if you like failure defiantly check out the stick :)
That's brilliant! I've got a small rc project in mind and I'd like to use this method to join the aluminum. I've watched dozens of videos and a lot of them are saying exactly what you are saying and it looked like your results were quite satisfactory! Thanks for sharing your thoughts and experience!
Glad it was helpful!
How'd it turn out?
Keep them eyes safe dude, good job on the video,
I want to try them seems like a good fix.
If I have a piece I need to reattach strength not an issue but need to know if brazing will allow the two piece to electrically ground to each other
Quality honest video I think you may have just got me out of the stink! I'll let you know how I get on. Nice one 👍
hope it worked out for you
hope it worked out for you
Awesome you showed me what I needed to know thanks.
Are you using mapp gas? Can i use lpg torch for that rod?
Oh I'm so sry but I laughed hard when you said you got yourself in the eye! Same thing here with the glasses on my head not face...
Great vid bro,
Practice makes perfect,
Was there any flux involved ?
I want to know if you can braze with a propane or an oxy acetylene using an arc welding rod ?
Great vid.
Can you share what type of aluminum rod did you use or the description of rod or where you bought.
Nice video, helped a lot🤙
Very interesting video, well presented and useful! amazing for RUclips :) anyway, I'm now going to give it a go.
aluminium is a good conductor of heat. heat the job just to the side of the join so you can rub the brazing rod on the job out of the main flame. braze tends to flow towards the flame/more heated area. turn your map flame down for thinner materials. propane works. aluminium is very reactive and oxidises really fast (21% oxygen in the air) so prep thoroughly by sanding/stainless wire brush etc to expose unoxidised metal and heat to the sweet spot temperature quickly and braze promptly. If it fails to flow easily and quickly then let it cool and prep surface again as the surface may have reoxidised. practice on similar scrap. first. my first attempts were terrible.
Good demo
Nice job mate!
Good video. Good advise. Thanks!
These things are the best solution ever for repairing a hole in an aluminium radiator.
rolled my aluminium motorbike (tow behind) trailer 😢. Panel beating done, 🤞 now time for the aluminium braising. Not structural and will be painted afterwards.
Might try a piece of stainless underneath the hole as a backer.
Go video and no fluff.
2 tubes put together i think they usually fill a valley ..suggest sharpening the edge
Like anything else "Practice makes perfect" Good Video!
Cheers for the vid, great video, keep it up.
Cheers mate! Nice work here.
Will it work for a trailer for RC trucks
Welding is all about feeling and the right angel☝️
good job mate
The most important thing is to keep the rod away from the flame.
Heat the work to temp 1st then touch the rod on the work while maintaining heat to an area well away from the rod to keep the work at temp.
Just like soldering....I've never brazed anything but, I know this just simple follow same principle. How can a hot weld material bond to a cold work surface, it can't, it becomes a cold joint and would be brittle and useless. Now let the work surface melt your rod then you can drag it across that hot surface applying as much or little as you need
So can this be used on cast iron? Or just aluminum
good work sick kent
Cheers mate
Which type of allunumium sticks are used in allumunium weld....
Aluminium
Nice video mate ✌️
Hi Finn what brand do you recommend? I’ve tried some cheap ones from Bunnings with little success- not sure if it’s operator error or the cheap Chinese rods...
I have had success with the Bunnings ones, I have had massive fails too! It was all my errors
Is that vice insulation polystyrene ?
Never even knew that you could braze aluminum. Always thought you had to use tig welding to do that.
Much better, some people run a screwdriver into the weld to score the base metal for a better fusion.
But that is perfect imo.
Also try a small flame (jet size ) as size really matters you can practice this method by soldering copper /flux free wire with flux added diff flame size different thickness different surface areas
what the melting point im thinking of using this technique for crankcase what your thoughts on it.
it's a low melting point around just under 400 degree's. I do not see the crankcase getting that hot but i honestly would not be able to tell you if i would trust it to hold up. it really depends on the type of repair and what sort of stress it would encounter.
That strength is surprising
Mr . Can you tell me in what temperatur the rood that you used for breezing ini this video,
The room temp?
when you weld short pieces it works but it won't work on longer tubing like 4'x4' square 1/2" it will come apart.
Can you share the type or aluminum rod that you have used on this video.
Just need it in my small project. Cheers Thanks.
Low temp aluminium braising
Good video but always keep the flame away from the rod. Heat the material, take away the flame, touch the rod to material; if it melts keep some heat on material away from rod, heat from back side of material. Good job. I like your attitude.
Thanks for the tips!
Whats your heat source?
Very informative
How does this work repairing large pieces where you can insulate between the vice
Just takes a lot longer and a lot more finess to heat the piece up
Hi bos, i from Malaysia, sorry my English is broken, huhu, just want to ask, emm,no need use the aluminium flux powder is it sir.?
No need for flux with aluminium rods like this
Cans blowing out cos it's to thin and to much heat ... and wen running a bead get parent metals to temp then run flame a mil or 2 in front of the rod while running the bead comes out smick
Good on ya mate
" Ah Lou Mini Um" Say it with me now. 😂
Its "Al Loom In Um"
This is cool thanks, really all I want to do with these (the ones that claim to connect copper to aluminum) to stick pieces of metal together merely to construct a roughly-hewn, blatantly scrap metal (if not steampunkish or post-apocalyptic) Native American-style Flute. Not heavy duty. But I don''t want them to tap it against the table and pop off either. Guess I need to test whatever brands look good.
They are strong, you would definitely need some sort of flux attempting to join to copper
Rad video mate. I’m looking at giving it a crack also. Rust hahahaha
You should!
Fantastic you good teacher thank you
You are very welcome
WTG I'm sold
How i can purchase the aluminum low temp and fluxless welding rod .? Danilo lerona of san rufino st alimodian ,iloilo phils.
if you do not wish to go to a store just jump on Ebay or Amazon,
what the name of your aluminom rod using to weild thanks
Just a generic low temp rod
Do you think lpg torch will work? Thanks
Yeah for sure!
What I'm confused about was the heat right onto the plate going directly over the rod, I read that was a no no
Aluminum rods to fix the cracks on the alloy mower I wonder if will work? same metal?
A lot more zinc or similar in the rods but could possibly hard to tell
your supposed to heat the metal but do NOT get the flame on the rod or you get oxide straight away on the rod.. with cans have to be ready to pull heat away fast.
Good tips
Finn! Patience is definitely not a virtue of yours mate! HAHAHAHAHAHAHA
I get there :)
@@Finntheweekendwarrior that's all that matters mate!
You have made a rocket launcher, cool
Where did you order that rod
I got them from Amazon, eBay and local hard ware
I guess I'll need a corona to get the same results as you did, lol
haha, i am having another session with these rods today... no corona involved this time.
what brazing rods made of? zink?
i think there is defiantly zinc content
Can i use that rod for stainless stell?
Nah only ally
Thanks my first attempt I could not get a water tight seal. I'm going to try map gas.
Did it work?
Mapp gas is too hot. These rods melt around 700 degrees
Is it possible to use lpg torch for this kind of rod? Thanks
@@buildonbudgetph4662 you can use propane but if the piece is big the aluminium sucks all the heat out so I could only melt the rod by applying heat to the rod. Your not supposed to do that. Just heat the other side of the metal and let the rod melt on contact. The rod has to be close to 750deg to melt and that is the max for propane.
Have you tried using them with other metals
Not yet but I believe with flux you can make them work with cooper
Remember every time the metal cools back down it might easily oxidise - so reclean the suface
Hi from the uk
Mabe the problem is not the rods or the gas torch it's the beer, a real serious welder over here would not be caught dead with an Amber euro fizz hell fuck it if it dosnt look like it came from the bottom of a pond it ain't real ale and not worth drinking as for the brazing stuff it's great for a fix that dosnt require the integrity of a tig weld just like with steel it horses for corsces use the appropriate method for the job in hand
Keep up the good work
My question is this. Ok so I have a blue gas cartridge from toolstation. Propane and butane. So trying to heat a bolt with a nut half way along. Using brazing wire and when both the bolt and nut are glowing red, the brazing wire comes away in short segments not fluid. Is this because the map gas and or my new gun not used yet from Bullfinch, both will be hotter than my can of gas? See the can of gas says 1950c and brazing only wants 880c so over a 1000 hotter surely it should make the braze run liquid. Just dont know.
Tried aluminium braze and its just shit. Aluminium angle cleaned with just aluminium brush only for aluminium and heat with my propane butane gas mix. It does not run liquid either.
Anyone know the answer? My £3500 tig welding machine is just so much better. Only I need the braze for joining two different thpea of non ferrous metals. Your help appreciated
the brazing wire is getting too hot
@@Finntheweekendwarrior ok so I glow the metal to cherry red. Just before I had heated the wire a bit then put it in the flux. Is this right? Then I moved the flame away and touched the fluxed wire to the part. Nothing happened. Then held it there and moved the flame closer. It dropped into sections of wire 4mm length I suppose. Not fluid at all.
What’s the process?
Try bringing the workpiece up to heat slower, remove the flame and “scratch start” the rod for a second to see if your there. as you get closer to the temp the rod will start feeling softer and then all of a sudden it will puddle.
I have had a lot of trouble in the past getting the “logs” fall off and I had originally written these things off as trash
Scratch start?
I also bought a Bullfinch torch but still waiting the propane pipe. Someone on a youtube vid said to try without a good torch is a waste of time.
I think if I remember back to when I was 12 to 15 at school which considering im now 47 is quite some time back, I used something with a savage flame.
Yeah scratch start is the best way I can describe rubbing the rod on the peice
Are these 2mm thick or 1.6
2mm in the video, but 1.6 acts similar
Seen a vid on diff rods having diff melt points ,parent metal needs to be about 720 to 750 degrees for most rods but some were utter shit.
The quality control on the zinc or whatever base they mix with must vary from manurfactures, and most likely batch to batch at some places
What gas are you using?
Map
But most will work
Sorry you got Corona :P
Fin I want to welding on aluminum cattle plz help me both parts are not same guage
The correct amount of preheat is what will be hard with different sizes
I Wana show u how can I show u both pieces we try butt all time we failed
You can email me, email is on my about page
Sorry I didn't find ur email
@@Finntheweekendwarrior plz mail me my I'd is javedandsons8@gmail.com
Well done,
I'm still melting cans.
Mate you got the wrong torch tip.. It should not get red that tip is for propane
These torch heads came in a pack with the map gas. I ended up with three of them for my Mini forge project. It might be a cheapskate thing on the companies side.
Wow I love that