Author Topic: Bending brass tubes  (Read 2427 times)

Offline stefanbuss

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Bending brass tubes
« on: May 30, 2014, 06:09:00 PM »
Friends,

I know how this works in real life for hydraulic lines - unfortunately I don't have a bending machine available (apart from the fact that this machine would be slightly overscale...).

How can I bend a brass tube with an outer diameter of 0.8mm, without just folding it? I want to replicate the long cooling pipe running towards the radiator, on an Albatros DV.

Any ideas?



Stefan

Offline stefanbuss

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Re: Bending brass tubes
« Reply #1 on: May 30, 2014, 07:23:52 PM »
I need a tube, as I want to show the open/disconnected end of the coolant pipe. A solid rod unfortunately is no option.

Offline uncletony

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Re: Bending brass tubes
« Reply #2 on: May 30, 2014, 08:11:41 PM »
No problem.

First heat it to remove the temper

You don't need a bending machine. Just make a jig from drill bits and a piece of scrap (anything). A picture here is worth a thousand words, excuse me while I go draw something for you....

Offline uncletony

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Re: Bending brass tubes
« Reply #3 on: May 31, 2014, 02:25:29 AM »
let me know if this requires further explanation...





p.s. I will be making the same parts for my alby very soon, so stay tuned :)

« Last Edit: May 31, 2014, 04:19:12 AM by Bo Monroe »

Offline coyotemagic

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Re: Bending brass tubes
« Reply #4 on: May 31, 2014, 02:43:13 AM »
I've had a great deal of success placing a light gauge high E guitar string into the tubing, bending it, then removing the guitar string.
Cheers,
Bud
"All men dream: but not equally. Those who dream in the dark recesses of the night awake in the day to find all was vanity. But the dreamers of day are dangerous men, for they may act their dreams with open eyes, and make it possible." -T. E. Lawrence

Offline ALBATROS1234

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Re: Bending brass tubes
« Reply #5 on: June 08, 2014, 02:36:34 PM »
i was about to post the same solution as coyotemagic. this is an old trick to put wire inside a piece of tube so it does crush when bending. i would do that even if you build a jig like bo drew.

Offline stefanbuss

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Re: Bending brass tubes
« Reply #6 on: June 11, 2014, 03:38:29 PM »
Quote
wire inside a piece of tube so it does crush when bending

Sorry for my lack of understanding - isn't the idea that the wire prevents the tube from being crushed? Am I missing something obvious (or obvious for a native English speaking person)?

Stefan :o

Offline uncletony

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Re: Bending brass tubes
« Reply #7 on: June 11, 2014, 06:11:22 PM »
I think that's a typo Stefan ;) Scott meant "doesn't"

Offline jknaus

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Re: Bending brass tubes
« Reply #8 on: June 11, 2014, 08:18:09 PM »
Another option would be solder. Easy to bend and soft so you can drill out the end. I've used that on armour before.
James