Experimenting with Lost foam - 2 Lost Foam Metal Casting Experiments

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Today I do an experiment with lost foam casting. I am planning a pretty amazing lost foam metal cast in the near future. This experiment is specifically for that lost foam cast. If you are new to the channel, and lost foam casting. Make sure to hit that subscribe button and comment below.
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***Disclaimer***
This video is for entertainment purposes only. Melting metal should be done by a qualified or experienced individual that has knowledge on this. Do not try to replicate this at home unless you know what you are doing. Molten metal is extremely dangerous make sure all proper PPE "Personal Protective Equipment" is worn when melting metal.
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Experiment with Lost Foam Casting - Sand Casting

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29 сен 2024

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Комментарии : 35

@ralphmourik 3 месяца назад

Interesting experiments. Came out pretty good, looks like a useful technique. Some years ago I joined in on a community challenge to make a bottle opener, I cast Brass around a steel wrench and that worked really well. If weight and color don't matter for your project, give brass a try 👍

@HeinrichsMade 3 месяца назад

Thanks! I did it for a project that I am working on. Brass on steel probably looked really cool. I'd love to do brass over aluminum, but it would probably deform or melt the aluminum 🤣🤣

@tobhomott 3 месяца назад

Might have cracked itself during solidification, trying to shrink onto that pipe... If you want it to never ever come off, grind or drill a few gouges in the pipe for the Al to lock into for a permanent mechanical fastening. Seems like you want to be able to remove it though. Whatcha making? Burner with a cast on venturi? Lots of applications come to mind...

@HeinrichsMade 3 месяца назад

That's what I was thinking, but I didn't look before I cooled it with water. If I was to do it that way again I would try to make it thicker. I was thinking of adding gouges in the pipe, but now that I see how strong the aluminum holds it, it doesn't seem necessary. My future project that this is for, I don't want to be able to remove it. You'll see 😎

@haydenc2742 3 месяца назад

Next time, put the pipe into some water, but leave the aluminum part out...once pipe has cooled, try to unscrew the aluminum hot, it will be expanded and unscrew easier, but the pipe will have been cooled by the water... Now I wonder if you could rough up or even cut a diamond pattern knurling on the metal pipe if you wanted the aluminum to be a permanent fixture on a steel pipe...or a way to have two types of metal become one piece

@HeinrichsMade 3 месяца назад

I see what you are saying about cooling only the pipe. Yes I think if I cut a few slices into the metal pipe the aluminum would grab it. Basically making it an almost permanent fit.

@brucemastiff7390 3 месяца назад

I'm pretty sure you don't need to waste time cutting threads in the foam. It should just flow and fill the voids during the casting, right? Cool channel, new sub here.

@HeinrichsMade 3 месяца назад

I agree, and was going to try that as well for another experiment. However, it didn't take much time at all to cut the threads in the foam. I just thread the pipe into the foam. Literally 10 seconds to do. I understand what you are saying though. If the foam is wrapped around the threads, the molten metal will fill the voids where the threads are. I don't see why it wouldn't work. Thank you!👍👍🙏🙏

@beartankoperator7950 3 месяца назад

Is it water or gas tight before you dislodge? I would assume so, i wonder if you tighten it back on again if it would be, very cool test thank you for posting

@HeinrichsMade 3 месяца назад

I have no idea, but you can see how tight it is. It is probably both water and gas tight. I think it should be just as tight if I tightened it back on. The thread is tapered. Maybe I'll do more testing in the future.

@PBRJOHN684 3 месяца назад

It all makes sense know 👍

@HeinrichsMade 3 месяца назад

I hope it was worth it 👍👍

@PBRJOHN684 3 месяца назад

@@HeinrichsMade It has mat 👍👍

@HeinrichsMade 3 месяца назад

@@PBRJOHN684 💯💯💯💯

@stevesrt8 3 месяца назад

funny, ive been thinking about someting similar the other day. good stuff buddy. cheers

@HeinrichsMade 3 месяца назад

Thanks! Now you don't have to 🤣🤣. We both learned something today 👍👍

@85rocco 3 месяца назад

That's an interesting experiment. I'm not surprised at the results however since the thermal expansion rate of aluminum is higher than that of steel. If you want to have a cap that doesn't crack, I think you'll need to make the outside diameter a bit bigger.

@HeinrichsMade 3 месяца назад

Thanks! Yeah it was pretty cool to see how tight it was against the steel. As far as the crack in the cap. That's what I think too, making it thicker it might not crack.

@makingcookingfixing 3 месяца назад

What is also wild is that this time you did not drywall coated the foam!! And that it works!

@HeinrichsMade 3 месяца назад

So the drywall coating only gives it a smoother finish. If you look at this one you are the grain of the sand.

@SpokaneSilverStacker 3 месяца назад

Very cool and interesting experiment.

@HeinrichsMade 3 месяца назад

it definitely was. I'm glad I did it.

@doriWyo 3 месяца назад

Just enough silicon to cover the closed end, and you might get a perfect seal.

@HeinrichsMade 3 месяца назад

No doubt! The aluminum end cap is tight!

@doriWyo 3 месяца назад

Also, there's Teflon tape.

@canadianoddy8504 3 месяца назад

I can see the tremendous amount of porosity in those castings. There will be little strength in those pieces you made. How do I know ? I did something very similar to what you did in this video. The piece I needed to make was a shock end for a 1985 Honda FL350 dune-buggy. You can't buy very many parts for this machine as Honda only made them for ONE year (1985). You have to make everything for this machine. The rear shock end I made lasted for one ride and broke. To much porosity. Unless you degas the melt, you are just wasting your time unless it's just a show piece and ornament.

@HeinrichsMade 3 месяца назад

I might have to disagree with you on this one. You only are seeing the outer surface, which is rough because of the sand. In you case, I can see that happening, because it is cast aluminum. Cast aluminum isn't as strong as extruded. Also it might depend on the type of aluminum you used for your art. If you used A356 aluminum it might have been better. Are you certain the original part was actually cast? How did you check the porosity or your part? Was there severe bubbles in the cast that you noticed when it broke?

@canadianoddy8504 3 месяца назад

@@HeinrichsMade 1) The original part was cast because I could see a parting line in the center. 2) I could see surface porosity very very slightly and when the piece broke it was obvious. 3) After the piece broke the grain structure was coarse. I could see it. 4) Type of aluminum -- I'm not sure but I used damaged engine pistons. That should be good aluminum 5) I definitely agree with you on the Cast vs Extruded belief. At the end of the day I just machined a new one on the milling machine and lathe. Sorry for the late reply as I'm not getting notifications I've received a reply to my youtube posts. I just seen this. CO

@HeinrichsMade 3 месяца назад

@@canadianoddy8504 It could have been cast, but I think there is a difference between casting methods. If you want to try to make it again, coat the outside of the foam with drywall mud. I normally do this on all my lost foam casts. check out some of my other videos. Im curious about the grain size. Grain size changes on the cooling of the metal. I might be wrong, but I think if you cool it quickly it will have smaller grain. If it is cooled slowly the grain is larger. Definitely try it again, make a couple of them for testing purposes to see what gets you the best result. Cut it in half and check for air bubbled etc.

@canadianoddy8504 3 месяца назад

@@HeinrichsMade I did this several years ago and haven't done any casting since. I did coat it with drywall mud. I have recently thought about doing some casting again some time this winter but I want to make a degassing head and use argon gas. I've done some research on this already.

@HeinrichsMade 3 месяца назад

@@canadianoddy8504 I hope you get back into metal casting and give it a try. Definitely come back and let me know how you did.