The Bronze Alloy as Tough as Steel! (almost)
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- čas přidán 21. 12. 2017
- Today I make some ingots of aluminum bronze in my fire brick furnace! Aluminum bronze is an alloy of copper and aluminum with some pretty amazing characteristics. It looks like gold, resists tarnishing, work hardens like nobody's business, and i hear it it can run a 5 minute mile. Ok, i may have made that last one up, but it's still pretty awesome.
Want to learn sand casting using your 3D printer? I can teach you!: paulsmakeracademy.mykajabi.co...
I'm making this alloy for sand casting. My first project will come next week, and aluminum bronze hammer for blacksmithing. I'm doing this alongside fellow youtuber SWDweeb, his alloying video can be found here: • Making aluminum bronze
I built this furnace and burner, videos available on my channel somewhere. I can't be bothered to find the link. I'm sorry.
Ok fine, here's the furnace video • How to Make a Fire Bri...
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#metalcasting #foundry - Jak na to + styl
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You have exactly 91.3% copper to 8.7% aluminum that is a rather strong alloy. You could have added nickel and made C95500 aluminum bronze which is exceptionally strong. Currently I am making a 7075 aluminum alloy for a nonspark wrench.
It might be too late to ask, how much nickel lol
@@Freddy-bx6sf
Aluminum 10.0 - 11.5%
Cu, Copper 78.0%
Fe, Iron 3.0 - 5.0%
Mn, Manganese 3.50%
Ni, Nickel 3.0 - 5.50%
Other 0.50%
This is manufacturing grade composition for C95500
@@thegreatders344 thank you. When it says 0.05% other is that for rounding errors? Is that like byproducts or something?
@Freddy-bx6sf other mixtures like phosphor or beryllium can be added on that 0.5% but ignoring it is fine
@@Freddy-bx6sf 0.50 accounts for the impurities you can basically never entirely resolve. There's a patent for Nickle/Aluminum/Copper that gives values 10-12% aluminum, 2 - 10% Nickle, and the remainder copper from whatever percentages you're using. Manganese can be anywhere from .01 to 5%. Iron can be substituted in at values of 1 to 6% in place of copper.
This is specifically advantageous because it allows the stress relieving heat treatment, or tempering, of the resulting bronze without causing it to become eutectoid. So its retains a martensite structure while being stress relieved, thus resulting in a greater body ductility. Such tempering should be done in the 800F to 1050F range of temperature.
refreshing to not be drowned down by heavy metal music with such videos. I really appreciate it.
WOW!!! Every time I watch one of your vids I'm amazed. A ratio of 10 percent aluminium to 90 percent copper is very tough stuff. I never knew that!! Thanks for sharing.
Thanks! It's a great alloy. Very tough, corrosion resistant.
Thanks for your vids, I'm looking forward to getting involved in the video community and sharing knowledge and results. Your channel is like my second favorite when it comes to these casting projects.
Lol, "all cratered up like the surface of the moon, or a teenager's face." XD That line had me rollin.
Aluminium Cans ! Are Great ! Thank you ! Pauls Garage ;
I just got my first propane furnace set up and I am VERY EXCITED to try this. I have heaps of copper and aluminum in search of a project.
I just finished my first copper melt and pour, and I didn't realize how much you were flinching from the heat the first time I watched this, but now that I can relate, I was chuckling to myself as I watched you dance around the heat. It's crazy how much more radiant heat comes off of molten copper than aluminum.
Thanks for the video, really helped a brother out on an engineering assessment. Funny too!
Dude, your channel is great! I love your great sense of humor!
Thanks!
this was awesome, thanks for the lesson on the aluminium bronze, I found that very interesting.
Your welcome! Glad you enjoyed
Sounds like a great alloy!😃👍💛
It is!
I guess you know by now that your mix was 9.09% aluminum bronze. To get 10%, you need 1 part Al and 9 parts Cu. But your mix seems to have amazing properties, sort of more like steel.
Another great video. I am looking forward to seeing the hammer. Merry Christmas.
Thanks! merry christmas to you too!
So very cool my friend.
Good video. I love seeing someone so passionate about the content they are creating!
Thanks! Playing with fire is a lot of fun
Hereafter u will be burnt into ashes i promised u🤣🤣
This one is more informative than Swede dweeb's but you both have good vids and I'm enjoying learning with you guys. I had NO IDEA aluminum bronze was harder than copper!! Amazing! I need to make some for sure!
You're very likable, keep making videos.
Great video, thank you.
Nice to learn this kind of stuff I'm thinking of going to the metal business myself maybe make some castings for people who knows it's good learn these things from people like you
Catching up on some old ones.
Nice. 👍
Thanks!
Another great video 👍
When there’s a new Paul’s garage video 😍😍
;)
Randy Rodich m
Another awesome video
Happy holidays to you and your family
Thanks! same to you!
This is great. Thanks
I just melted a whole bunch of old pennies (95% copper, 5% zinc) from 1959 to 1982 and added 10% aluminum by weight. The result was ridiculously strong and impact resistant. I actually can't believe it. Some of my bars had a little bit of material overhanging on the side from where I finished pouring. They look so thin and flimsy that I expected to be able to casually snap them off- I'd be able to if they were aluminum or copper. But I almost cut my finger trying. I am a pretty strong guy but I could not bend the overhang that was 1 mm thick and 10 mm long and 7 mm wide with both of my hands applying full strength - not even a little bit. You could definitely make knives with this.
Was not expecting hard material from two soft materials, very interesting video Paul
Glad you found it interesting! Aluminum bronze is awesome.
Thanks for sharing
Thanks for watching!
OMG hair blower, that workd great... Cool paul remember glasses you can dameged or eyes... 😁 what bar, psi was your gas at???
the hair dryer is awesome!! forced air is the best. I don't have a gauge so i'm not sure exactly what PSI i'm at, but at max the thing is around 30psi (2 bar).
This will be good to know when I start making my machine shop machine tools next month.
Good luck!
That’s tough stuff!
Cool project
Thanks!
Just a safety thought. Might want to invest in some torch goggles
Good idea, it was never this bright before.
The brightness, UV and IR radiation will kill your eyes, good post...
I was going to say the same thing 😊😊😊
3-5$ from ebay china, have a look
It's been So long and I'm So glad to be able to watch one of your videos calmly, again.
Hey, my Salandit named after you . . .
There's these fire, toxic and melting based content.
Salandit is a Poison Fire Type.
This is awesome.
I definitely like types of fire, that's for sure :D
Interesting good vid my dude.
Thanks!
I'm making Aluminum Bronze now!!!!! 92.5/7.5 ratio and a light wire wheel job.
It's an awesome alloy. One of my favorites
I am a machinist, and I machine aluminum bronze fairly often for guides and things. I use an SFM of 120, similar to stainless or A2 which works pretty good.
Thanks for the info!
No problem, also if your not using carbide tooling the work hardening aspect of it can become an issue when machining. to get around it instead of using multiple passes, go full depth using a slow feed rate.
I always wanted to do this, but couldn't find much info on it. Those turned out great man, cheers!
Thanks!
Awesome!
haha loved it, great video.
I run a 5lb bronze furnace. I get 2200F with a passive Bernoulli draft induced by propane injection into a simple pipe. I melt 5lbs in about a half hour. No electricity involved.
"They look amazing, google it sometime" is what the quick caption says
I work in a CNC shop and just got done making aluminum bronze bearings. It is a very hard bronze.
Fit the lid on perfectly, use a marker to make one line going through the top and side, then two on the next side then three etc. These will act as registration marks to perfectly align your lid every time. Or weld brackets with holes on the bottom and pieces of rod to slot into them to the lid.
You're funny as! I'm definitely subscribing!
I don't know if aluminum bronze reacts like other copper alloys, but if you want to shatter the puck try hitting it while red hot as copper alloys tend to be "hot short". Meaning that it breaks into gravel if hit while hot
"that you don't want blowing up at random because that's really inconvenient"
Wow... you are ultra-close to Chicago!
swdweeb send me over. Very cool collaboration project!. Cool channel Paul , new sub
Thanks for coming over!
I remember forging down a large-diameter round bar of aluminum bronze. Didn't know it WAS aluminum bronze. Heated and quenched it to anneal. Swung my hammer down. Every single tooth in my skull rattled. Found out later that it hardened when quenched. Mystery metal lottery....
Sounds like a tooth shaking good time
@@PaulsGarage I think you can quench harden and temper it to around 50 Rc, which is good enough for steel swords and plenty for smithing hammers.
Looks like some super tough material I like it didn't fracture didn't bend not too soft not too brittle
Also I think the hair dryer worked so efficiently because it not only forces the air in but preheats the hell out of it. So the base temp into the combustion front was way higher than it otherwise would have been.
I love it! I wanna make myself a knife!
it would look amazing. I would probably buy an industrial aluminum bronze alloy, though. The industrial stuff has some iron in it and can be heat treated super tough. They make non-sparking hammers and wrenches out of it. It's amazing.
@PaulsGarage can you imagine telling people you have traditional bronze aluminum alloyed knives and stuff I mean how cool is that! I don't need the toughest thickest knife to go out I'd love to have a cool Outdoors knife that was made from super old tec that actually lasts and looks awesome
I'm planning to make some of this stuff and casting a set of custom knuckles dusters with it
Can’t wait to see your hammer head design and see it cast. And just a second on the protection for your eyes. Torch glasses. Ave just did a video on it as was mentioned...
I’ll have to get some kind of eye protection. I’ve never had the thing this hot before.
I've seen aluminum bronze obelisks for international border monuments- only place I have seen the metal. It is pretty cool stuff.
Ok, clearly I'm going to have to go get a hair dryer. It takes me something just short of a lifetime to get hot enough to melt copper. Pretty impressive young man, pretty impressive.
Forced induction makes everything better, even mustangs ;)
Dude I get a kick out of watching your videos! Good job.
Thanks!
Forced air is seriously a MASSIVE difference. I use a shop vac in reverse with an inline speed control knob turned all the way down and the hose intentionally misaligned to prevent too much air and I've sheared off my pipe that serves as torch end in the furnace at least 5 times now. I'm thinking about running an O2 concentrator instead, as it's lower velocity and highly flammable
I would like to have Paul as a neighbor so he'd help me move some giant things around.
I need my spine to heal a bit first! :D
Teenager face killed me😂😂😂😂
Damn. I want a sink made out of this stuff.
Eyyy nice work man! Finally got your gold :D What else do you plan on doing with aluminium bronze?
Havent decided yet, but probably something like an axe? Tobho mott already did that, though
Always look forward to your vids as you remind me of my best bud-he was there after my transpplant, he kindly told the nurse I was awake so she could come over and turn the Morphine back on while I am screaming mentally at him "I'M FINE! CAN'T YOU READ MINDS?!?!? Oh, you Diiii....." but you're not him. I wonder how flexible this stuff is-been wanting to cast a bracelet, I can use Silver [[will eventually]] but wanted to get the first done cheaply and Aluminum is too tough to bend. [[Stupid Aluminum]]
Haha that’s awesome. Cast aluminum won’t bent but pure aluminum might, it’s a bit softer. It work hardens though, so you would have to keep annealing it
You might be able to make some cool bullets out of that alloy. Copper and brass bullets are available but the alloy should penetrate better.
Use the face shield next time you do a metal pour. Keeps the heat off your face. You can’t get tinted ones too to protect your vision.
Forced air furnaces are the best.
I use a shop vac for my furnace. It is kind of out of commission, because I kind of melted the steel burner.
Thats unfortunate! Good sign that it was hot enough thoigh
This would make for one cool Khopesh Sword.
Such a fun and funny channel and I learned a lot about forging. I want to make an aluminum sword and I was looking for ways to add metals and make an aluminum alloy so that way the sword can be light but also strong and durable to take lots of hits. I do stage and film acting and I was looking for ways to make my own weapons so we can use them on stage not risk the weapon breaking or hurting myself and it be light and easy to use.
dude you just answered a new question that’s been bouncing around in my mind since I built a foundry. I want to make a hammer like you, since I’m missing a hammer and anvil. Do you think aluminum bronze is dense enough to make an anvil ? New sub from me, this is an amazing art and great video !
With the right alloy it's probably tough enough for anvil work, but that would take a LOT of aluminum bronze! I'm not sure if my alloy is all that great, as most home brew alloys arent great, but I'm sure you could make quite an anvil out of the stuff. One advantage of any copper alloy is the density. While tool steel, properly treated, can exceed aluminum bronze in toughness, copper is actually denser than iron, so bronze alloys have more mass for the same volume. Basically a forged steel anvil is probably tougher, but a bronze anvil of the same size is heavier. That anvil mass helps when forging.
Hi mate... I am looking for a pure metal OR alloy that has a silvery look but is not Nickel or Silver. I need to replace those too for a project. any ideas ?
finally got it right I used a small amount borax idk if it helped or if I got it right but I was thinking could not hurt got a nice bar tried several times and failed
Weld a line to match to for the top
Sir, you are funny and melt metal and have tools. You are success at life.
Because they have different volume to weight values true percent would by by volume and not weight!
Cool
To get a torch that hot and have it heat up the foundry that quickly, you probably had a near max effeciency burner. Propane with pure oxygen can reach near 3600 degrees farenheit. Good job
Thanks! It definitely got crazy hot really quickly. I didn’t expect a burner made of 10% duck tape to work so well
To protect your eyes from the brightness and heat you could drop ~$5 on some shade 5 goggles. I know I’m a couple years late but it’s a lifesaver if you don’t have any by now!
Totally flipped when I saw this. Forgot it was Friday.
TGIF indeed
I've used non-sparking tools before, and they were pretty soft (at least compared to normal steel tools). The features on the tools also weren't quite on center, so maybe we just got crappy tools despite the expense.
Could be? It's easy to screw up the alloy. It's a balance between strength and brittleness and sometimes they go a little too soft to prevent it shattering
Wait carbon is made of carbon?
I’m 95% sure, can’t be absolutely certain though
Paul's Garage I think it's made out of hydrogen
So is carbonara sauce, it's just arranged differently
i cant say it is wrong
JAG827 casting
Carbon, being an element, is what it is. Whether you’re referring to soot, nanotubes, buckminsterfullerene, graphite, graphene, glassy carbon, or diamond, it is still carbon.
Just like why phosphorus can be a brick red powder that is often found on the sides of matchboxes, but the same element can also be a yellow wax-like material that spontaneously ignites if you let it sit out too long. Either way, they are allotropes of the same element.
Does the badass Tweed jacket also serve any safety prurpose? Also where can i get 1?
It’s wool which resists burning ;). You can get all sorts of wool old mans jackets at goodwill
If you can get it try adding 3% Beryllium to the alloy. Th addition of 1-3% to a copper/Bronze alloy makes it as strong and tough as tool steel
Ha ha ha! Loved the video! Very informative. Especially with the brittleness tests. Was curious, did you use a grinder at all to it? Also, what was the weight? As it has Al in it , it would weigh less. Also, how hard is it to cast? I'm curious about it for replicating period weapons.
Lastly, go to Harbor Freight and invest in some inexpensive Oxy - Acetylene gas welding goggles. #5 shade should work out just fine. Great teaching!
It casts easier than copper, probably not quite as easy as tin bronze or silicon bronze, though. I didn't take a grinder to the ingots, but I did use the grinder on the hammer that i cast later. I didn't think it was that tough on the grinder, but then it shot flames and stopped working... I guess it's hard on grinders LOL
Like "Dirilyte"? Cool.
I might have to jump on the alumina-bronze smithing hammer bandwagon as well
...i like this guy >.>
Thanks!
Hey Paul, I checked out swdweeb, and he seems to be a nice guy with some cool content. I am planning to cast some aliminum bronze grinding media for my ball mill. Do you have any idea about how to get the alloy aa hard as possible? Quenching vs not quenching? Casting only in moonlight while chanting Norse battlehymns? Any thoughts?
The higher the aluminum content, the harder and more brittle it is. Not sure how that will effect it's use as a grinding media, though. There are ways to heat treat it too, but i'm not certain what those are.
you should cast a hood ornement for your van
An aluminium bronze hammer would make an interesting ornament. Many people would probably whine that a hammer is not pedestrian friendly, but the front of that van isn't really any softer.
If someone gets hit with a van, the hood ornament is the least of their worries! Aluminum bronze badges and stuff would be pretty awesome now that you mention it...
your face is an arrangement of atoms. - comedy gold
It’s also technically true! Every face is made of atoms. :D
This may be a silly question but, did you have the heat function going on the hair dryer going or was it just blowing regular air? The reason I ask is because I have an old vacuum cleaner motor and moves a ton of air but with no extra heat…I would assume the propane is sufficient?
Sweet! I guess it won't solder though, correct?
You can braze with aluminum bronze, but it's not as easy as silicon bronze. Its stronger, though
Paul I have to Admit although very uninformed or ill equipped you manage to give us some good content! Keep at it Man!!! haha I get your jokes by the way , funny!
Wonder if you could make a sword out of this? Mabye like a shorter one, but still, it would be kinda cool, especially ingraved with a mirror polish.
If you are still into this -Can you make arsenic bronze (while keeping yourself safe) in proportion same as what Bronze Age people made and check how it compares with aluminum bronze and tin bronze you made?
I know it would make a hammer, but maybe it would make a great anvil as well.
Probably but that would be a LOT of material. I'd go broke
Put in nickel also ! Nickel Aluminum bronze is great for sea water exposure.
Do you know if this alloy will turn skin green like straight copper? It would be interesting to alloy it and try some jewelry smithing
I don’t know for sure. The reason it resists corrosion is the aluminum in it forms a protective coating of aluminum oxide, so it might not turn skin green. I don’t know for sure, though.
Paul How about making a belt buckle in the same pour with the left overs Have your Wife make it on your 3-D printer Enjoyed
that's not a bad idea, golden belt buckle sounds cool