That's really interesting, I'm not much of a caster but I dont think that i have seen the candle soot trick. I'll have to give it a go next time im casting. Cheers
It's a really neat trick, it works wonders also to help molten metal flow in metal molds. I think I've seen it done also on some sand molds but it was a different technique. 👍
Thank you 🙂 You are blessed with talent ... *and* a cool cat. Thank you for kindly sharing your pro knowledge amongst DIY hobbyists like me. I like the furnace you've made.
Gotta say I love the absolute bootleg furnace with the burner held in a bench vise. Shows that you don't need the fanciest equipment to pull something off
Aluminum bronze is a bit tricky to cast, but we can make jewelry with it ( th-cam.com/video/uoaQs4mCkK8/w-d-xo.html ), since it has great tarnish/corrosion resistance, and looks a lot like 10k gold. Also because it's corrosion-resistant, it's great for applications where it would be exposed to harsh environments such as the sea. Some countries have used it for their coins, and cheap dental crowns are made of it instead of gold. I like it because it looks like gold and doesn't easily tarnish. 😁
@@SculptyWorks Thanks! That's very informative. I'm thinking jewelry made from it also might be okay with my nickel allergy, though I don't know. Gold jewelry that touches my skin isn't good for me. I mostly have titanium or surgical steel for my earrings.
@@elissahunt That sucks! You need to wear high karat gold (22k) or get it custom made with an alloy that won't contain nickel. I don't know why people still put nickel in their gold, there's so much better stuff to use! Whenever I made my own alloys, I used copper and/or silver with yellow gold, and palladium and silver for white gold.
Hint if your still using the tray instead of candle soot (which is just carbon) you could use a graphite powder to speed up coating times Also i know it seems like alot but i would recommend buying a devil forge if you havent as they really are sturdy forges and pretty good quality
If the Alloy is a 87•5 %-12•5 % mix should it be calculated by volume not by weight ? 7 parts Copper to 1 part Aluminum. I think the weights should be 875g-125g if Copper and Aluminum are the same weight but I could be wrong.
Copper and aluminum are not the same weight (specific gravity). The calculation is done by weight, not volume, otherwise you will end up with a disproportionally large amount of aluminum. It might come out alright but I reckon too much aluminum makes the allow horribly brittle.
@@SculptyWorks I was going by a video explaining that the hardest and possibly best ( not brittle ) alloy is 87.5 pc Copper and 12.5 pc Aluminum. That to me seemed like 7/8 ths is Copper and 1/8 th is Aluminum. So pouring 7 muffins of Copper 1 muffin of Aluminum then weighing them separately would give the correct ratio for using weight. The video is at th-cam.com/video/SVzWrPwi8_o/w-d-xo.html
I have no idea, I never tried casting a bell from it. ...maybe future project? 😉 If I had to assume, I would think it would have a very bright tone, and may be a bit brittle, depending on the amount of aluminum that goes in it.
I'll put on my projects to-do list. 👍 The melting point of aluminum bronze (1040 °C) is actually higher than regular bronze (915 C), but a bit lower than copper (1085°C).
Many reasons! Some metals become more reactive the hotter they get, and in the case of aluminum it creates a lot of dross if you overheat it. Also in this case overheating the aluminum could cause some splashing when you put the relatively cold copper into it. And while it's not the case here, some metals can literally boil away. Also in this case, we had a tiny bit of aluminum and a whole bunch of copper; if we melt the aluminum first and then put in the copper, the molten aluminum would freeze back up; melting the whole lot of copper first and then putting in a little bit of aluminum makes the aluminum melt almost instantly; it's more efficient that way. 👍
@SculptyWorks I'm asking because i was hoping to "dissolve" the copper in the aluminium like sugar in coffee, never having to actually reach full copper melting temperatures - seems this plan goes out of the window :)
That's really interesting, I'm not much of a caster but I dont think that i have seen the candle soot trick. I'll have to give it a go next time im casting. Cheers
It's a really neat trick, it works wonders also to help molten metal flow in metal molds. I think I've seen it done also on some sand molds but it was a different technique. 👍
So satisfying watching it all melt, like watching the One Ring thrown into Mt Doom ☺
mmmmm.... very tasteful
Cool video. I want to make some men's jewellery from this. I wonder if 95/5 might be more malleable for stuff to be beaten into shape?
In my experience, the more aluminum, the more brittle it gets. I haven't tried 95/5 but the 92/8 ratio does have pretty good flexibility still.
Thank you 🙂 You are blessed with talent ... *and* a cool cat. Thank you for kindly sharing your pro knowledge amongst DIY hobbyists like me. I like the furnace you've made.
Gotta say I love the absolute bootleg furnace with the burner held in a bench vise. Shows that you don't need the fanciest equipment to pull something off
👍👍
I don't know why projects like this fascinate me, but they do. I don't even know what you would use aluminum bronze for.
Aluminum bronze is a bit tricky to cast, but we can make jewelry with it ( th-cam.com/video/uoaQs4mCkK8/w-d-xo.html ), since it has great tarnish/corrosion resistance, and looks a lot like 10k gold.
Also because it's corrosion-resistant, it's great for applications where it would be exposed to harsh environments such as the sea.
Some countries have used it for their coins, and cheap dental crowns are made of it instead of gold.
I like it because it looks like gold and doesn't easily tarnish. 😁
@@SculptyWorks Thanks! That's very informative. I'm thinking jewelry made from it also might be okay with my nickel allergy, though I don't know. Gold jewelry that touches my skin isn't good for me. I mostly have titanium or surgical steel for my earrings.
@@elissahunt That sucks! You need to wear high karat gold (22k) or get it custom made with an alloy that won't contain nickel. I don't know why people still put nickel in their gold, there's so much better stuff to use! Whenever I made my own alloys, I used copper and/or silver with yellow gold, and palladium and silver for white gold.
Hint if your still using the tray instead of candle soot (which is just carbon) you could use a graphite powder to speed up coating times
Also i know it seems like alot but i would recommend buying a devil forge if you havent as they really are sturdy forges and pretty good quality
👍👍
What's the ratio?
If the Alloy is a 87•5 %-12•5 % mix should it be calculated by volume not by weight ? 7 parts Copper to 1 part Aluminum. I think the weights should be 875g-125g if Copper and Aluminum are the same weight but I could be wrong.
Copper and aluminum are not the same weight (specific gravity). The calculation is done by weight, not volume, otherwise you will end up with a disproportionally large amount of aluminum. It might come out alright but I reckon too much aluminum makes the allow horribly brittle.
@@SculptyWorks I was going by a video explaining that the hardest and possibly best ( not brittle ) alloy is 87.5 pc Copper and 12.5 pc Aluminum. That to me seemed like 7/8 ths is Copper and 1/8 th is Aluminum. So pouring 7 muffins of Copper 1 muffin of Aluminum then weighing them separately would give the correct ratio for using weight. The video is at
th-cam.com/video/SVzWrPwi8_o/w-d-xo.html
I have a question...Can you make a good ringing bell from aluminum bronze?
I have no idea, I never tried casting a bell from it. ...maybe future project? 😉
If I had to assume, I would think it would have a very bright tone, and may be a bit brittle, depending on the amount of aluminum that goes in it.
@@SculptyWorks Please try one in the future. I am curious and is the melting point lower if you have aluminum scrap around?
I'll put on my projects to-do list. 👍
The melting point of aluminum bronze (1040 °C) is actually higher than regular bronze (915 C), but a bit lower than copper (1085°C).
Okay, now what does one make with aluminum bronze? Will there be a sequel to this video? Can't wait to see what will come next.
Well, we can make many things with it! This batch I hope to turn into a statuette! ...there will be a video of that when it happens. 😁😁
Jewellery would be amazing because it doesn't tarnish like copper .... but looks like gold.
Tools-jewerly
Im currently trying to get some more copper so I can make a spear
Always melt the higher temp metal first - why is that?
Many reasons! Some metals become more reactive the hotter they get, and in the case of aluminum it creates a lot of dross if you overheat it. Also in this case overheating the aluminum could cause some splashing when you put the relatively cold copper into it. And while it's not the case here, some metals can literally boil away. Also in this case, we had a tiny bit of aluminum and a whole bunch of copper; if we melt the aluminum first and then put in the copper, the molten aluminum would freeze back up; melting the whole lot of copper first and then putting in a little bit of aluminum makes the aluminum melt almost instantly; it's more efficient that way. 👍
@SculptyWorks I'm asking because i was hoping to "dissolve" the copper in the aluminium like sugar in coffee, never having to actually reach full copper melting temperatures - seems this plan goes out of the window :)
@@Avemis1 I'm afraid it doesn't work like that. 😉
Flux (borax) will lower the melting temperature of the copper by a little bit, though.
When can we eat?
Soon! 😉