#11
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YouTube
If you search "Metal Bellows" and "Forming Metal Bellows" on YouTube there are examples of just about every process.
Best, Kelly
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Kelly Coffield www.inlinecarb.com - My Old Carburetor Habit http://www.alloyavenue.com/vb/showth...nace-Build-Log - My Home Foundry Furnace Build |
#12
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What is the purpose of this thing?
Is it just to create a chamber of variable pressure or vacuum? There are easier ways to accomplish that, unless the whole point of the exercise is to MAKE a bellow such as your example. Joe
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It is more FUN when it isn't necessary! Joe Jones - Franklin, KY. USA |
#13
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Some applications these are used to allow some flex tolerant to thermal expansion
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Marc |
#14
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I see all the machines (on youtube) that can do it but at some stage, someone must have invented these and made a few with more simple tools.
I am interested in all sorts of metalshaping and to me, this is way up there on the scale of interesting.
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Best regards Bernt Last edited by berntd; 03-06-2020 at 11:47 PM. |
#15
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I can see that the discussion is heading towards the egg. What was created earlier, hens or eggs.
Put the tube into the lathe and shaping. What complexity? The question is what is your goal. Search for a path or product?
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Jaroslav |
#16
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Quote:
? Also, the wall thickness of this brass is only 10mils/ 0.25mm. Not easy to hold.
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Best regards Bernt |
#17
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Of course. It must be thin. Because it would not respond well to temperature changes. It is necessary to use thicker material, shaping the wall weakens. But most of all it is necessary to try !!! There is no need for space technology. It is sufficient to understand the basic properties of the material. The lathe, the this most bad, may be your friend for experiments.
I added a picture. You can must produce this tool set 3x. Gradually you will shape. Use a copper pipe from the heater. You can soften it by heating and cooling. I'm interested in your info about your way. The pipe must of course have a larger diameter in order to be displaced and one step. DSC02680.jpg
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Jaroslav Last edited by Jaroslav; 03-08-2020 at 04:27 AM. |
#18
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bellows forming
Am I seeing an internal expanding mandrel?
https://youtu.be/poAQZlmqcN4 Soft thin metal and internal pressure .... Or just camera theatrics? Sure seems real.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#19
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Quote:
https://www.youtube.com/watch?v=Eqru6zIN2t0
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Best regards Bernt |
#20
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Quote:
Yeah, different cat fish - so skinning it just ain't the same ...
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
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