Hydroforming the steel Lilo
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- เผยแพร่เมื่อ 20 ก.ย. 2024
- After using a pressure washer to inflate over a dozen sheet steel experiments, I discovered that the Lilo form would make an ideal bench seat; as it can be long and thin, but still incredibly strong. This video shows the fabrication and inflating stages of production, prior to powder coating and bolting to the concrete & steel bases.
Created for my Final major project on the Hydroforming process, to complete my Product Design BSc course at Kingston University.
Filmed at Kingston University's 3D Workshop.
For more information, visit: www.connorholland.com
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#connorholland #hydroforming #metalworking
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Finally! An air mattress that the cats cant claw a hole in! 😁
You underestimate your cat
😼 - "meow. challenge accepted."
@@ElTurbinado "meow. Hold my milk."
But it alway have one. lol
that's one hell of a hip flask! :O
.....bloody students.
This is really interesting technique. Materially efficient and strong. Love it!
Thanks Conor! Well worth trying out the process. Compressed air works equally well with good welds, and doesn't spray water everywhere!
@@ConnorHolland but any failures during expansion can be catastrophic when air is used.
Very imaginative and beautifully constructed.
Thank you!
It took me longer than it should've to realize the word Lilo in the title wasn't referring to the Disney character
Impressive. The video was well made also.
Thank you very much
Very clever! Thanks for sharing.
Oh good, now I know what a lilo is.
Wait, no.
I’m confused yet pleasantly fascinated by something I’m clueless about.
Brilliant! Thanks.
A metal SurfBoard !!!
How did it sound? - Metal-like one would think.. Ever thought of filling up the cavity with building foam or something similar to deaden the "clang"-sound and support the structure? - Really cool project btw!
+Crackedblade It does make a ringing 'clang' sound, but I like it to show people it's not plastic, it is always good to see the surprise on their faces! The curved steel structure is extremely strong and the bench can support 5 people (haven't had a destructive test yet), but expanding foam would be useful if I make floating or thin aluminium objects - Thanks for the comment!
@@ConnorHolland so is it a bench. I'm kinda confused. Looked like a ton of work. I also like all of the other hydroforming you have done. Your workshop it beautiful. I'm jealous lol
Thank you, it was my final project for my product and furniture design course at university.
May be, there should be the first stainless steel surf board out there.?
How would one stay on it though? Plus if you get bonked on the head in the water with the edge, game over
Finally an air mattress long enough for me
What is it?
Very cool :D more please
I wonder, if there's a way to make an OVAL set of Spot Welding tips so you could get FULL CONTACT linear welds on the internal baffle lines? Something that might come in handy for both strength and internal fluid flow (such as a wide surface area Radiator).
The best tool would be a seam welder, which uses rotating copper wheels rather than single point tips.
So you made a steel surf-board?
@1:54 Me after watching a movie in the theater...
Taco bell
nice job!!
Keeping it under pressure of some sort would increase its bending strength too.
Fill it with expanding foam.
So its true, you can knock someone out with a lilo hitting them round the head. ha ha (This one definitely.) I love hydro forming.
What if you used oil instead of water to help corrosion from the inside.
The heater became like a radiator core.
Great...!
We still don't know if he picked up his off cuts from under the machine...
The back of the machine was a goldmine for 'free' sheet metal when I was a student
What is a lilo?
Like a surfboard or boat or something?
Looks like a surfboard the last picture
An inflatable pool mattress, which inspired the shape of the metal bench seat I'm making in the video
@google smells Yes I would expect so, as its airtight.
without a spot welder, how might one achieve the dividing seam?
Either by a long TIG weld, or a heavy duty jig that clamps the piece between steel bars
@@ConnorHolland thnx.
so ising this principle , could i made a roof for a ford model A?
Possibly yes, it would be much stronger. But also more difficult to produce and fit in place, compared to a traditional single sheet metal roof. I would be very interested to see it if you try
If I were to try I would use very thin material that was fully annealed. Then i would create ridges/seams about 4" apart. When formed I'd do a very minimal inflation so it didn't look like a pool floatie.
Lilo, like in the song Montego Bay by Bobby Bloom, IC
Maybe the Trebuchet arm something like this?
How do you manage the chance of corrosion? Or do you use it only for stainless steel
To protect the inside I use a blowtorch to heat the metal until any moisture escapes as vapor, it is then sealed airtight with a brass plug in the fitting. The absence of fresh oxygen will stop internal corrosion, and the outside is protected by powder coating. Research on internal resistance to corrosion: falconrme.com/wp-content/uploads/2019/06/Tubular-steel-vs-channel-steel-research-Part-1.pdf
@@ConnorHolland Thank you very much for the reply and the additional references.
In the real world, powder coating merely hides the corrosion for a while, then suddenly it peels off to reveal mucho rust...
@@innleadair In the real world, you would remove any rust and roughen the surface before you powder coat, and you apply enough coat so oxygen doesn't get through.
@@MrSaemichlaus real world experience tells me that you are correct, but the slightest flaw or scratch in the powder coating will result in a rust layer gradually creeping under the powder coating with the usual results. You just have to look at powder coated items which have been out in the world for a few years...
Build a seem welder it would save you lots of time
whats that for tho
+ElIjah Jaeger www.designboom.com/design/connor-holland-hydroforms-steel-lilo-bench-10-28-2015/
Litterally the article said he was inspired by the homemade hydroforming technices found on youtube. Colin Furze??
Yes, Colin's videos was the first time I saw hydroforming, and I wanted to try it
@@ConnorHolland....I'm always disturbed by Colin's approach to health & safety.
What's this "lilo" thing?
What gauge?
My thoughts, as I watched...
Hmmm, WTF is a 'lilo form'? Kinda looks like an original type air mattress.
"Bench seat"? He must mean seat bench... he couldn't mean bench seat, since that's a type of seat in an automobile. Yeah, he must mean seat bench... it would make a good seat bench...
WTF is a lilo form, though; guess I gotta Google it.
Google: A lilo is an inflatable air mattress.
Damn British language... always coming up with weird names for stuff... ;)
Sir, you parade your ignorance like it were a first class degree!
@@jackdawes8264 Indeed. These words have been in the language since the 1950s at least. Li-Lo was trademarked in the US in 1947. The bench seat or just 'bench' dates back to the middle ages.
@@qwadratixthey were implying the bench seat found in the from of cars and utility vehicles that have typically 3 seats
Which power psi or how many bar washer machine is required
My pressure washer's maximum is 90 bar, but inflation can start at low pressure.
@@ConnorHolland thanks, and what is the thickness of sheet and this st.steel is of which grade brother
@@AnuragTanha I use 1mm thick mild steel sheet
@@ConnorHolland thanks brother but can we use st. Steel draw grade 202 or 304
@@AnuragTanha Yes both grades would work. 304 has increased corrosion resistance, so is better for exterior applications.
This looks like a process looking for an application. Experimental Aviation could benefit from complex curves without many sheets riveted together.
it's not looking for an application though; hydroforming is used all over the place in manufacturing. it's been around since the 50's.
What about stitch?????????????
❤
What the hell is a Lilo???
Inflatable plastic air mattress / floating pool lounger
What gauge is the sheet of steel?
+SAWMetalworks 1mm thick
What brazing rod are you using to join steel and Cu?
I think it was silicon bronze
@@ConnorHolland thnx!
MY FARTS CAN HYDROFORM
Aplicación?
how many bar ? :O/
Now do Stitch
Make a surfboard
What is this for? What it does?
А для чего эта штука? Радиатор отопления или что?
www.connorholland.com/lilo-bench.html
Man, you were way too close to that sheet metal when you were getting up to put up another sheet 😬 Please wear a face mask or protective eyewear. I like your work though. No blood please 😅
Too close...? It's not alive.
Что это было?
Steel dakimakura
So what the heck is a Lilo? To me, Lilo is an old Linux boot loader or a kind of financial transaction which are generally done by foolish people.
Why tho ?
And what he did? Flown away?
Say what?
Stand pudle
?
Что это?
www.connorholland.com/lilo-bench.html
The hell is a lilo? Whats it do? Lie low?