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Brass Tubing

Old 03-07-2010, 06:36 PM
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lann2004
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Default Brass Tubing



Whats the best way to bend small brass tubing without crimping it

Thanks Lanny

Old 03-07-2010, 06:40 PM
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Lnewqban
 
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Default RE: Brass Tubing

This is what I use:

http://www3.towerhobbies.com/cgi-bin...&I=LXR791&P=RF
Old 03-07-2010, 06:47 PM
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Default RE: Brass Tubing

Lanny, first anneal it by heating bright red with a torch then quenching in cold water. That makes it much softer. Dubro also makes a tubing bender that looks like a miniature conduit bender. You can also put something like weed whacker line in the tubing, bend the tubing and then remove the "string." This helps keep the tubing from collapsing.
Chuck
Old 03-07-2010, 07:50 PM
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SeamusG
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Default RE: Brass Tubing

Harry Higley's tubing bender

[link=http://www3.towerhobbies.com/cgi-bin/WTI0001P?I=LXL781&P=8] Harry Higley Biso Bender [/link]
Old 03-07-2010, 08:56 PM
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lann2004
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Default RE: Brass Tubing

Thanks alot ya'll solved my problem

Lanny
Old 03-08-2010, 09:31 AM
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Default RE: Brass Tubing

ORIGINAL: R8893

Lanny, first anneal it by heating bright red with a torch then quenching in cold water. That makes it much softer.
You got that backward. Getting it red and quenching it will make it hard and brittle. Get it red and allow it to cool slowly to anneal.

It's really not needed anyway. Just fill the tube with salt to keep it from crushing.

Or, better yet, go to your local Auto Parts store and get some 1/8 copper tubing. This stuff bends beautifully!
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Old 03-11-2010, 06:56 AM
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Default RE: Brass Tubing

Can copper be used with fuel?



ORIGINAL: MinnFlyer

ORIGINAL: R8893

Lanny, first anneal it by heating bright red with a torch then quenching in cold water. That makes it much softer.
You got that backward. Getting it red and quenching it will make it hard and brittle. Get it red and allow it to cool slowly to anneal.

It's really not needed anyway. Just fill the tube with salt to keep it from crushing.

Or, better yet, go to your local Auto Parts store and get some 1/8 copper tubing. This stuff bends beautifully!
Old 03-11-2010, 02:15 PM
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Default RE: Brass Tubing

I like the Higley bender also, but quick and dirty I put a wire (electrical wire) in the tube for any bends that are not too drastic.
Old 03-12-2010, 09:03 AM
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ORIGINAL: aerofly0610

Can copper be used with fuel?
I sure hope so, I've been using it for years
Old 03-12-2010, 09:12 AM
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Default RE: Brass Tubing

Heating brass red hot and then quenching it does make it soft. just the opposite of what happens to iron or steel. This is a trick that reloaders of ammunition often use to soften their brass for reloading. You set it in a pan of water with the water just over the base of the cartridge then heat the upper part to red hot with a torch and tip into the water to quench. This softens the area that has been heated to red hot. The same trick works on brass tubing.
Old 03-12-2010, 09:49 AM
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Default RE: Brass Tubing

Learn something new every day - Thanks Rodney!
Old 03-12-2010, 11:22 PM
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Default RE: Brass Tubing


ORIGINAL: MinnFlyer


ORIGINAL: aerofly0610

Can copper be used with fuel?
I sure hope so, I've been using it for years
No problems with corrosion?

Old 03-13-2010, 06:32 AM
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Default RE: Brass Tubing

nope
Old 03-13-2010, 10:48 AM
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Default RE: Brass Tubing

My method to bend brass tubing is to insert a piece of electric wire with OD just slightly smaller than the ID of the tubing, and then bend it. Yank the wire out afterwards. Perfect bend every time.
Old 03-16-2010, 08:40 PM
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Default RE: Brass Tubing

In the past, before tube benders, we would fill the brass tubs with water and putt them in the freezer. With the frozer water in them , we could bend them.

sticks
Old 04-13-2010, 02:30 AM
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Default RE: Brass Tubing

Here is a method that some manufacter's use they fill the brass with water and freeze it. it can then be bent without it crimping the ice inside keeps it full
Old 04-13-2010, 06:52 PM
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Default RE: Brass Tubing

I bet you could fill the tubing with water, freeze it and then bend it. Just don't freeze it and then heat it red with a torch, cause that'll melt your ice. Maybe, you could heat it red, quench it (or not) then fill it with water and freeze it, then bend it.

Old 04-13-2010, 08:22 PM
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Default RE: Brass Tubing

I used to use fine grain sand until I read one of Mikes posts about the salt. I used to find that really nice sand in ash trays outside of hotels and bring home a cup of it, free stuff!! Sort of like epoxy mixing cups at fast food places!!! I chuck up different sizes of sockets in my vise and roll the tubes around the sockets. Copper line turns your fuel green!!!

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