Metal Spinning a Combustion Chamber of Our BPM 5 Rocket Engine

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9 жыл бұрын

Today we've left the rocketshop to visit Olsens Metal - a small firm specialising in metal spinning In the suburbs of Copenhagen. Here we witness the production of the inner and outer walls for the new BPM5 testmotor. Support our project at www.copsub.com/support-us with a small donation.
Copenhagen Suborbitals is a non profit open project that aims to build a rocket and put a man into space (above the Karmann Line, 100 km). This is only possible with the continued support by people like you!
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Пікірлер: 47

@Anamnesia 9 жыл бұрын

I'm a fitter & turner (by trade), but specialized in plastics injection mould making. I don't use the trade much these days. However in all of my years I'd never seen how metal was spun - I'd heard about it, but had never seen it. Thanks for the video!

@MrBen527 9 жыл бұрын

Yes. Great vid!

@jd10t 5 жыл бұрын

Simply Fantastic, I wish you all the success!

@Anvilshock 7 жыл бұрын

See, space-age technology doesn't have to be all titanium and 3D Printing. This is great work for lowering launch costs. Being able to churn out a rocket engine body every minute at even this scale is some serious manufacturing capability and capacity for creating launch vessel parts. Very nice!

@among-us-99999 5 жыл бұрын

Anvilshock is it even possible to use titanium for rocket motors? Titanium is a very nice component of solid rocket fuel mixtures..

@Anvilshock 4 жыл бұрын

@@among-us-99999 I think you're thinking about aluminium. Solid rocket fuel has aluminium powder added to make it more energetic. But yes, titanium alloys are in fact used. The XLR81, an engine in the Agena upper stage, had a titanium nozzle extension; the turbopump impellers for cryogenic hydrogen in various makes and models of rockets are often made from titanium, an early SpaceX engine (the Kestrel) had a heat exchanger part made from titanium, and various other parts in rocketry and space exploration are made from it, too, due to its cost-saving weight advantage over materials like steel.

@among-us-99999 4 жыл бұрын

I mean, titanium would be a very bad choice in an _oxidising_ environment. That stuff burns like magnesium, if not worse.

@Anvilshock 4 жыл бұрын

@@among-us-99999 That it does. Luckily, not all environments in the general vicinity of a running rocket engine are oxidising.

@kalif3000 9 жыл бұрын

Success!

@rolandmine6693 2 жыл бұрын

I’d pay serious money for this service

@martinmllebjerglarsen1793 9 жыл бұрын

Super informativ video :)

@ArtorMachine 3 жыл бұрын

Satisfying to watch! #thumbsup

@Hvalfisk 9 жыл бұрын

Cool

@carlosalbertovelascoquirog9957 2 жыл бұрын

Siempre pensé ,como se fabrican las toberas ... gracias amigos..

@lasignora1000 9 жыл бұрын

Why not make the material clad. copper on the inner, tin followed by a steel outer? Roll them together. Melt the tin.

@CopenhagenSuborbitals 9 жыл бұрын

Hi Sarah. That might actully be a good idea. We'll see if we can use it at a later stage. Thanks for the input!

@lasignora1000 9 жыл бұрын

y name is Adam, This is my wife's channel. I would love to help. Could I make something for you?

@among-us-99999 5 жыл бұрын

Jack Meadows that could be useful for later interplanetary missions.

@dormroomengineering8689 Жыл бұрын

How do you get the inner wall inside the outer wall if you form them separately? Do you weld the outer wall around the inner wall? Or are you forming the two walls at the same time here?

@aljazmesec4336 6 жыл бұрын

me and my bud are going to build this kind a engine

@berdreyer82 9 жыл бұрын

Is this the inner shell or the outer shell? How do you assembly them together afterwards?

@CopenhagenSuborbitals 9 жыл бұрын

We cut the outer shell in two, and weld it back together: facebook.com/CopenhagenSuborbitals/photos/pb.150360881653453.-2207520000.1426770324./896618273694373/?type=3&theater

@justiceanddevelopments873 3 жыл бұрын

I have a small question . Here why don’t use Lathe Machines for shaping.

@wilruugames 9 жыл бұрын

What metal alloy are you using?

@TheExplosiveGuy 3 жыл бұрын

Probably Inconel.

@magdanoz88 8 жыл бұрын

What a professional work! If it's not a secret - which type of steel did you use for that part?

@nerskogensmia7540 6 жыл бұрын

stainless steel probably

@matthewsoules7064 2 жыл бұрын

304L Stainless steel.

@shreyasr2011 3 жыл бұрын

which material is this

@henry2008kim 7 жыл бұрын

Good spinning... but how did you get to the seamless cylinder in the first place? It doesn't look like you've welded a metal sheet and polished the welding marks off.. is there another way?

@marmaladekamikaze 7 жыл бұрын

Swaging is one way,

@jearlblah5169 3 жыл бұрын

@@marmaladekamikaze is that where you just walk up to the sheet of metal with so much swagger it just complies with your wishes and becomes a solid pipe?

@williams3062 5 жыл бұрын

Does anyone know why the combustion chamber is so much bigger than the exit nozzle part

@Matthias7817 5 жыл бұрын

it has to do with combustion pressures, the lower the combustion pressure, the bigger the combustion chamber is in comparison to the nozzle.

@shakedlw3394 2 жыл бұрын

Did he just grease the tube with his sleeve!?

@gregwarner3753 3 жыл бұрын

This is in the do not try this at home class of metal working.

@palanichamys828 5 жыл бұрын

What is that material? (Work piece)

@TheExplosiveGuy 3 жыл бұрын

99% positive it's an Inconel alloy. One of the few metals out there that can withstand white hot heat and still maintain structural integrity without oxidizing.

@palanichamys828 3 жыл бұрын

@@TheExplosiveGuy thank you mark

@vishalk4647 4 жыл бұрын

What process is it?

@shibumi5210 8 жыл бұрын

Have you considered 3D printing these? Obviously I have no idea the budget, but SpaceX is printing seamless parts in Inconel even...

@Anvilshock 7 жыл бұрын

Printing stuff at this scale is prohibitively expensive. SpaceX can afford the tools, the software, the machines, the manpower behind additive manufacturing of rocket engines, something unthinkable at C-Sub-level of available funding. All the more laudable are therefore the efforts and solutions C-Sub can and do employ to make it work without.

@nerskogensmia7540 6 жыл бұрын

i don't know how 3d printing metal works, but it doesn't sound like a good idea.

@Anvilshock 6 жыл бұрын

A thin layer of metal powder in an inert atmosphere is deposited onto the bottom plate, then a laser draws across it, melting the powder where it hits, tracing the contours and scanning the filling areas. This process repeats until the part is finished. It works great and has still massive potential for improvement, especially for scaling up.

@NOBOX7 4 жыл бұрын

Have you guys ever considered just bolting a casing together that shrouds the combuster ? , also he is going way to fast , tell hi to reduce his speed 90 % , . kinda like an egg in an egg carton is the way im thinking , the egg is the combuster and the outer cooling jacket is just a crappy carton bolted together with no brazing , this allows inspection the hole 9 , . Contact me for details if your unsure Optimizedprcllc@gmail.com

@CopenhagenSuborbitals 4 жыл бұрын

This is a fairly old video, so since then we've went for different manufacturing techniques for our engines and have now reliably manufactured, tested and even flown many of them with great reliability. If I understand your bolting design correctly then it would definitely not work. You need to to have the two liners brazed together, otherwise the heat and high pressure of fuel traveling between them will split them apart. It's something we've seen happen multiple times and is one of the bigger challenges in a biliquid rocket engine. But thanks for reaching out nonetheless.