How To Easily Join Together Aluminum Plates & Repair Aluminum Parts
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- čas přidán 4. 09. 2013
- Learn how to easily join together aluminum plates & repair aluminum parts using the brazing rods shown in this video. The resulting joint/repair is extremely strong if done correctly(Must be super clean and well brushed). The brand used in this video is Alumite, but Alumaloy also works great. Repair your own radiators, windows, or engine parts that have cracked. For cracks, simply drill out the ends of the cracks to stop them from spreading, grind the crack below the surface, then proceed as shown in this video.
Alumite & Alumaloy brazing rods BOTH work great. Please refer to the link posted below if you're interested in purchasing these rods:
amzn.to/2o4JaVx
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*Aluminum muffler repair on my scooter. Before AND After:
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I worked as a Jeweler / Goldsmith for over 30 years. I am just passing along a simple tip about soldering. The solder always follows the heat. To pull some of that aluminum solder down under the joint and a small amount to the other side. You need to heat that joint on the other side. You should see a small bead form on that other side when the solder starts to flow.
I have also used these aluminum rods and I think they are fantastic.
One last tip. Don't overheat your work. You used just enough heat till the solder flowed and that's good. Too much heat and you can actually cause the solder (call it brazing if you like) to boil causing a porous and weak joint.
Thanks for posting!
+JoeKind1958
Thanks for watching!
Great vid! Would this technique be ok on thin sheet say 0.9mm aluminium or would I get some warpage
Hey JoeKinnd1958, do you think I could make an aluminium/gasoline /petrol tank for a motorbike and use only brazing instead of welding?
Great additional tip. Thanks for this video and the comments that go with it.
Ive been for 20 year and CZcams came up i feel like my 20 years was nothing
Man how many times have I needed this product over my 25 years as a mechanic. I will be getting some very soon. Fantastic demonstration thanks
Glad you enjoyed the video Mark! Be sure to check out my extensive video playlists below for many other
videos of interest to you, and most importantly share my channel with others. Thank you
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Finally, someone who knows what they're doing. Thanks for showing the right way, with emphasis on oxidation. Notes were useful. Adding this to my skill-set soon.
Acetone..?
In welding class we hit the aluminum t joints with a hammer to see if it will crack. It’s really crazy how tough 16 gauge is to tear or compromise. You hit the nail on the head with the preparation. Aluminum has got to be very clean if you want the strongest joint. A good weld/braze is like a good paint job 90% prep work 10% actually spent welding/brazing.
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Hi, just picked up the neat holding method with the wrench.
Those rods are usually an alloy of aluminum and zinc, they will stick to about everything metal there is. ( Copper, brass, steel, stainless...)
One tip from a machinist/welder, not that it really matters in this demo, but prior to brushing, just clean with acetone so the grease don't get rubbed into the sheet, and, if the rods contain flux, no need to brush after you started, just keep the flame on the part, this will keep it from oxidation, the melting point of those products is around 850 F or less. (pure aluminum is 1200 F)
Like you said it make a very decent bond.
Appreciated the demo, Pierre
Great video. You've shown the whole process and demonstrated what "clean" really means. Thanks.
Glad you enjoyed the video.
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This video absolutely pointed me in the right direction. Along with the fact that others have mentioned.. Solder follows Heat. The best joints I've completed so far is with your steel brush method.. Thanks for the tip man!
Great to hear Dean! Be sure to look over my extensive video playlists below for many other helpful videos of interest to you, and most importantly share my channel with others. Thanks
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That was the cleanest brazing joint ive seen so far when doing this kind of work...really nice !!
Awesome brazing job. Never joined aluminum by brazing but you made it look easy. Thanks for sharing.
Thank you!
I purchased some rod like this from a guy over 20 years ago. He told me they had used it on aircraft in WW2. His technique was to clean with a stainless steel brush where the parts would be joined. Then heat until the joining material was liquid along the joint. Then he took a fine stainless steel rod / wire and ran it through the liquid joint material scraping the aluminum under the liquid. He said this got rid of any remaining oxidation on the aluminum and assured a good joint. I used it on a few projects and it does result in a very strong joint. Much stronger than solder on steel. More like nickel silver brazing. Yes, TIG would be better, but this requires about $20 worth of equipment vs 220Vs and a big TIG welder. In the past it was often hard to afford really good equipment. It is great that more of us have access to good tools these days.
Thanks for watching!
Ted Cosgrove thanks for sharing.
This is a very interesting video. This is something to consider for non-critical joints where I don't need to use my everlast welder.
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People don't understand the benefits of taking the time on prep work such as wire brushing considering the few minutes of prep are less effort than re-brazing/ soldering/ welding and well anything in life Haha. Good video. I'm probably going to pick some of these up soon.
Thanks! Practice on a few pieces, you will learn fairly quickly.
Which people?
we picked up some of this rod a while back, but haven't used it yet. thanks for a very good tutorial on how to use it. you are quite a handy man indeed!!! thanks again.
+snaprollinpitts
Thank You
Another great video. I've had some of these rods kicking around for years and completely forgot about them. Time to dig them out!
Rick Rose Thanks Rick. Be sure to share.
Another awesome video! I didn't know about these rods. I have a 150cc two-stroke gas motor for a large RC airplane that has a cracked exhaust header, this will work perfectly for repairing it. I can see this useful for many other things as well. Thanks!
Thank you for the rapid response!
I think the rod melts around 750 degrees F. The usual welding practices normally apply. If you viewed the image of my muffler repair, I used a die grinder to grind out the crack to allow space for the filler material, and to add strength to the repair. Beveling is definitely good to do.
I used these on an alum boat and worked great. Make sure the brush is SS, looked like yours was, thanks.
Good job on the video. These rods are great. I've built up metal on a carburetor for my bike. Drilled and taped these welds too. Saves me a bunch of time and money.
These rods are excellent. I repaired an aluminum cooling fin on a flywheel 2 years ago, it is still firmly attached and the engine spins 5,000-6,000 RPM's.
I like brazing. The end result is very clean and smooth.
Thanks! Great option for those (including myself) who can't afford a good Tig welder... I just subscribed so I can learn more good stuff.
+jammin jimmy
Glad you enjoyed the video. I have many excellent videos on my channel. Be sure to check out my video playlists, rate thumbs up, and share
I have helped design and build aluminum vessels for the Navy for years....and seen friction stir, stick, mig, tig etc.......never this. I am def trying this at home. So intrigued.
Pat Rigdon These rods work extremely well when the surface is properly clean/brushed, and the correct amount of heat is applied. Be sure to check out my other aluminum repair video as well.
Thanks For Watching! Please share and rate Thumbs Up.
When welding or brazing aluminum, cleanliness is next to Godliness.
It definitely needs to be super clean. Thanks for watching!
If you use a proper flux (and do your brazing off the huge heat sink of a concrete floor) you will get a better joint that will fillet on both sides, even if you only apply on one side. You will also be able to skip the majority of the wire brushing. Still; this does illustrate how strong a brazed joint can be, even when done less than optimally.
Concrete, like a fire brick, is a very poor conductor of heat. No flux is needed with these rods, but I am sure the result would be even better if you did use flux. Brushing surface oxidation under heat is mandatory when using these brazing rods(according to the manufacturer, as well as my testing)
Thanks For Watching!
I haven't got to try brazing yet! I can emagine from my research you are 100% correct! I also seen somone online showing a strength test which had interesting results! One person with a scale and the other with a hammer! So that was nice when you hear that brazing is only for decorative! I know steel is better to be welded within some cases, I just can't wait to see what aluminum provides!
Thanks, very informative.
Glad you enjoyed the video! I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You
I bought Harbor Freight rods and they worked fine for repairing AC tubing on the car.
Tube had broken where it enters a large bolt on flange bracket.
So, drilled out old tube in bracket.
Cleaned up tubing and brazed together. Saved me over $100 they wanted for that part.
Glad to hear it worked well for you. Large tube or small tube? If it was the small tube, I hope you did a really good job cleaning the surfaces under heat before applying the brazing rod. The high pressure side can reach 250-400psi.
Thanks for watching!
electronicsNmore Small tube where it enters the condenser, so yes high pressure. It is perfect leak free. You can just tell when you get a good braze. I have done a lot of welding so have some experience. Scratching the aluminum braze material while hot even using a brush or even a screwdriver on the metal is good to break the oxides. I sanded it clean and bright first.
OK, good, just wanted to make sure. :-)
Scott Downey ty 32o k .
Die cast is molten metal forced into a cavity, especially zinc based. I have used these rods for many years.
Awesome, gotta try this sometime! Thanks!
I had NO IDEA this was possible, thank you and i will certainly use this method for some of my projects. I always thought you need a whole welding machine etc etc but i can do this in my condo balcony haha
Your english is very good.
....why in your condo when you have a palace on the Black Sea ?
hey thanks for the video, looks very easy and im definitely going to try this on my small project im working on.
Your welcome John. Just make sure all surface are SUPER clean, and do not apply too much heat. Use a stainless brush also.
I like the fact that it hardly warped, I'll have to get some of that for sure.
These rods are the next best thing after welding.
Thanks For Watching! Be sure to share.
I've got 20 plus year arc welding with certifications. This blows my mind, nice brazing!
David Spennachio Thanks Dave. I have another video showing how well these rods work. Check it out in my video playlist.
The first time idid it, I pounded it apart to test the bond. The metal broke before the brazing let go. Good stuff.
Yes, when done correctly, it's strong stuff. :-) Be sure to rate thumbs up, share my channel with others, and check out my video playlists. Thanks!
I had no idea you can do this, thx. Great instructional video.
Good tip regarding sanding the rod. I have been brazing for many years. I am surprised that I haven't been doing that.
I now use 000 steel wool on the rod. Thanks for watching! Please share.
That process I have not seen before. Great stuff
Thank You!. Be sure to share with others, and rate a "Thumbs Up".
thanks for this one...
cool vid thanks. tip..that concrete leeches alot of your heat making the process take longer. Also concrete can blow up in your face if heated to much depending on how much moisture is in it.
Cool video. Thanks for the info. I have been wanting to experiment with this for an art project and you taught me the basics of how to make a good braze.
+Michael Webb
Glad I was able to help. Be sure to check out my other videos, rate thumbs up, share, and subscribe. Thank You!
Will do!
excellent video. thank you.
good info...thanks..i have a project coming up on cast aluminum...will be trying HTS 2000....is this a similar product to which you are using
Nice! Learned something new today!
+Robert Fernandez
Glad you enjoyed the video!
Please share and rate Thumbs Up.
Thanks for this! The vid demonstrates the use of these alum/alloy rods for repairs etc. In the past I've tried bonding aluminum, with little or no success, without a mig welder. Aluminum forms a thin layer of oxide almost immediately on contact with air/oxygen so cleaning is huge. BTW - mig welding jets a flow of inert gas over the surface of an aluminum weld that displaces the oxygen from the surface so you can weld two pieces of Alum together. Thank you Joe*** for that tip. I already suspected heating technique played into the strength etc. of the joint. So the brazing/soldering material is drawn INTO the heat. As in soldering a copper "joint" by applying heat behind the actual joint to "suck" it into the connection. Peace. Great stuff on YT.
Best video on this iv seen yet
Glad you enjoyed it! I have many videos on my channel that cover a wide range of subjects unlike 98% of CZcams channels, so be sure to check out my extensive video playlists for other videos of interest to you and most importantly share my channel with others. Thank you
What's the temp rating on that joint before it remelts the brazing? Also did you bevel the joint like you would for welding, or is the application not require it?
I think this is fantastic. I always thought that this could be done just as it is done sweating copper pipe to a valve. One question, can you used flux to make the welding easier. ?
+Chimel 07
The manufacturer does not say any flux is required, but I guess it would not hurt to use it.
thank u! not only dope video but u put it to the test
I really enjoyed watching this, and it has given me a few ideas to try this on. Many thanks for making this video, I have shared this onto my Twitter and FB in gratitude. :-) x
Excellent, thanks
The Jack stand on my boat trailer has a foot that is rusting out. I was thinking the foot off and trying this out with a fresh piece of aluminum. Assuming I clean it up nice prior to, would this be a good fix? It’s. 2500 lb jack stand. Not that there is 2500 lbs being put on it, just giving more info.
Really nice demonstration! Thanks for sharing!! 🙂👍
You're welcome Gina! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you
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Thanks! you never said this was permanent and now my two favorite pieces of metal are stuck together.
Just heat it up again
Few things here, great video and brazing aluminum is far easier than welding it and with aluminum welding isn't always that much better. Aluminum is fairly weak anyway, so brazing it normally all you need. A couple things that were not right it that while cleaning the area to be brazed, soldered or welded is always right, you are not removing oxidation. Well, you are but aluminum will oxidize as soon as you brush it. It is nearly instant. If flux is used it removes the oxidation when you heat it and the rod covers it so it never touches air. If you don't use flux you have to scrub though the molten filler to remove the oxidation and have the molten metal cover the base so it does not contact air. All that scrubbing was just taking a way a layer of oxide and allowing on other layer to form.
+Phillip Morrison
Hello Phil. I have had this discussion before, and spoke with the manufacturer as well. What I show in this video is the correct method to keep surface oxidation at a minimum. Keep brushing, even under heat until the brazing material flows into the surface.
Thanks For Watching.
Don't know why all these videos are stating to use a STEEL BRUSH.
I wouldn't recommend using any type of steel brush on Aluminium; especially, at this fragile molecular state.
Preferable, use a new (dedicated) brass brush rather than any steel.
Pushing Chromium (SS) into the Al will cause intergranular corrosion later down the road.
Even sandpaper type must be chosen wisely before cleaning Al.
I too would recommend using the proper flux with a nylon "toothbrush" for "longevity".
But thanks for the other info, gave you thumbs up!
+Aquamon do you work aerospace? I don't hear people talk about impurities from the brush very often, and they are normally aerospace welders.
+Phillip Morrison Right you are, the steel brush leaves behind residue . If you take a steel brush to stainless steel then the part you brushed will rust, actually it's the residue from the steel brush that rusts and not the stainless steel itself. Is that correct? When you brush the Al it leaves the same residue on the Al. I have told others to be careful what they use to clean the parts with that are about to be soldered/brazed and most people just don't care and use some kind of oily, greasy wire brush to clean with and then sit around scratching their heads wondering why their solder/braze joint failed miserably. I just sit back and laugh.
+brandy sigmon I meant that previous comment to be a reply to Aquamon, sorry.
Awesome, very helpful. Thank you for the video.
+Naoki Kashima
You're very welcome. Please share, rate thumbs up, and check out my other videos as well.
Awesome. Great video. Intriguing. I have a perfect project to try this on.
trees dirt Thanks! Be sure to check out my other videos, and share. I do have another video showing these rods filling up a hole in a pot.
Thank you so much for your great details video
You're welcome! Be sure to watch my other videos and share my channel. Thank you
Thanks!
Sweet I'm gunna give it a try,I was waiting for the concrete to pop you got lucky
Brad g That only happens if there's a lot of moisture in the concrete, and you keep the flame in one spot.
Thanks for nice idea and presentation!
What torch you used? I have only propane torch is this enough?
Where I can buy this rods on Internet or ebay?
Thanks for answers!
Great video I am glad that someone posted this. I knew this could be done but was not sure what to use or how to do it. Now for small repairs I don't have to have someone do it for me that has a welder. I can do it myself.
+Steve H
Glad you enjoyed my video! Please be sure to share my channel with others and rate thumbs up. Thanks.
Your Welcome.
Hi great tutorial, thanks for answering some questions I had in regards to thin aluminium, I was worried that the thin pieces would start to buckle under the heating up process, but as you've shown it didnt.
I just have one question, how long did it take to cool down approx. before you could touch and pick the piece up? was in minutes or hours? thank you
You must evenly heat thin aluminum plates. Heat way beyond the brazing area. The metal cools down in 10 or 15 minutes. Be sure to watch my other brazing videos, and most importantly share my channel with many others. Thanks!
Great video, thank you!
I’m wondering if you need to weld it turned upside down, is it gonna stay on joint, or it’s gonna melt down? I have one project, and i need to weld it from underneath.. Thank you in advance!
Could be tough unless the pieces are fixed in position.
Why people dislike this awesome video?
It's CZcams. Many Trolls, haters, and experts. :-)
Well hot damn, this is great! Will this also work for very thick pieces, in the neighborhood of 6mm? (1/4 in) because i really need to know. I will be getting myself some of these rods, and thanks for the awesome step-by-step.
Do you recommend Cobra torches?
gostaria de ter esta solda no brasil como que faço pra ter. ou receber aqui
Thank you for sharing.
Your welcome Steve! Be sure to share with others, and rate "Thumbs Up"
Great video - thanks for sharing!
+mcquality55
You're welcome!
Nice share, just ordered up some of these, need to make a custom model engine muffler.
Great to hear!
Great video. It worked very nicely!
McKinlea Wells Good to hear! Be sure to check out my other videos as well, share with others, and rate Thumbs Up.
Thank You!
G'day, Nice video, Thanks.
Have you experienced the problem of the brazing rod ( Im using 4043 rods ) breaks off in about 5mm pieces just barely sticking to the part, rather than melting completely onto it. Is this due to not enough heat, incompatible base material or not enough cleaning? Any pointers on what I'm doing wrong?
+Dooners S
4043 rods will not work. They are WELDING rods. You need aluminum brazing rods. Thank You
+Dooners S
4043 rods will not work. They are WELDING rods. You need aluminum brazing rods. Thank You
I’m pretty amazed by the wrench holding it up too hehe
Great Video what is diecast and pot metals? How did you come with this?
Thanks for the great education on your site.
Good one.
Thanks for watching! Be sure to share my channel with others and look over my extensive video playlists for other great videos of interest to you.
switched on bloke--its good to see
Thank you. You've earned a sub.
Great video. Thanks!!
+GCK50
You're welcome!
Very useful. Thanks for sharing.
Sanjaya Attanayake Thanks For Watching! Be sure to check out my other aluminum repair video, share, and rate Thumbs Up.
Huh, I'm already subbed to this channel! Seems past me needed your help and present me does once again. Thanks (again)!
Thanks for that so if your trying to fix a crack you would have to grind it out?
Yes.
Hi, can I ask your opinion on failure of this joint under re hating with a flame. Do you consider this a fusing of the two pieces, which would not come apart when re heated or just a bond which would?
This is just like "Hard Soldering". The base metals don't flow together.
great vid, thank you.
Your welcome Tiffany! Be sure to check out my other videos as well, share with others, and rate Thumbs Up.
Thank You!
ok i am impressed and here i thought anything aluminium brokeded is brokeded for good. i think i haz reason for buying a torch and some rods :) should make for some nice antenna repairs
Can this method be used to weld those aluminum (alloy?) hollow sections used to make display cases in stores with glass surfaces?
I use this method for all my aluminum repairs.
Fine Stainless steel wool, pot scrubbers, are much better than anything for cleaning aloominum, works on aluminum also...I'm impressed most people I know have learnt too much to think they could join these two.
+TheMattynaught01
You can use what you want to clean the surfaces, but I only use a small stainless steel brush, and only recommend that my viewers do the same. You must be British based on the word "Learnt", and criticizing the word "aluminum". In the USA we say "aloominum".
Thank You for the great video and information. I have a hole in my briggs engine block. Can i use this method to seal it? If it will, Can I use any aluminum? This would be to keep the oil in it. Any help would be great. Again Thank You.
Depends how big the hole is.
Great Video Sr this is a great idea for some welding part were is going to be low stress and at a low cost Normally you need welder and argon gas and the Mather load so great video
+1miltond
Thanks for watching! Please share.
How strong is brazing comparing to conventional aluminum welding?
Thanks.
Hi Peter. Welding is always the strongest because the base metals flow together into one. When you braze, it's very strong, but only the surface of base metals are fused together. Check out my other video below. Be sure to share my channel with others, and rate thumbs up. Thanks!
czcams.com/video/hEx89N3f9u4/video.html
I do not own a welder of any type, but I do have a MAP torch. So what do you think I would use?
Weld being stronger does not mean a braz is not strong.
I was looking to make an aluminium support for an oil cooler i'm fitting to my car. If i use this to bond a couple of lengths of angle together will it handle vibration ok? Cheers
Can you bend the aluminum in a bench vise to the correct shape?
Thank you for this video. An edge to edge at a 90 degree angle, so as to make a container in a box shape, is what I myself would like to connect with aluminum sheets but working from the outside of the box, and around it seems difficult. I say a box shape to simplify, but there are complex curves in the actual shape, and they connect at the edge. It would be a sculpture. I thought I would just check here for some advice, before looking elsewhere. Thank you.
These rods should work just fine for that. Thanks for watching!
at 9:21 Yeah... can your hand me your adjustable wrench? LoL
Hey buddy good show. Tried this two years ago with similar product. Joints are very strong. I applied WAY too much alloy. Now I see that it goes on like a crayon when done correctly.
Just a thought, an oxyacetylene torch might be better than propane. More heat and better focused. Get in quicker and oxidize metal let to boot.
You can use a neutral flame with an oxy-acetylene torch, just be very careful, it is very easy to melt the aluminum.
Thanks For Watching!
Sure is. Normally you would have to use a special welder to do this. With these rods you can repair just about anything(Aluminum, zinc diecast, or pot metals). I've used them countless times over the years.
is this method strong enough to make a sled using square stock to haul my ice fishing gear?
Hi Joe. It should work just fine with square aluminum tube as long as the walls are not too thick(1/8" or less). Use a MAPP torch, and follow the instructions in the video. Practice makes perfect! :-)
Wonderfull thank you
Can you weld a seam with these? If so, can you sand/grind down the weld to make a smooth finish for painting?
If you bevel the seam(plates), and fill the area slightly higher, then yes. Thanks for watching!
Very sweet ! I can now try to repair what I was going to throw away !!
+PRACERZ
Hello there. I have been able to save many things using these aluminum brazing rods. Please share my channel with others, and rate thumbs up.
Would these work to join coffee cans? I was going to do it with brass, but that would require an even hotter torch. I did 't want to borrow one if I didn't have too.
Coffee cans are steel plated with zinc. These brazing rods only work with aluminum and "white metals". Be sure to check out my extensive video playlists for other great videos of interest to you, rate thumbs up, and share. Thank You
Hi
Nice tuts thank you. What you will suggest something cheap and safe for small home works? Some good weld pistol and other accessories . Thank You
You cannot go wrong with a propane torch and 40w/60w soldering iron for many projects.
Thank you for replay.
Would you mind to post some link from ebay or at last name of item. I am not familiar with welding.So please post some item name or link so i can search and order it, Thank you
what kind of torch did you use? basic specs would be great. Thanks
I used propane gas with a MAPP gas torch.