I don't know exactly what size you are trying to get but you might try using
a swagging tool. They are used in refrigeration to open copper pipe so a
piece can be soledered, like to join together 2 1/2" copper tubes. They are
like a punch that you just drive into the tube to expand it. Here are some
that are for sale on eBay but if you look around I am sure you can find a
much nicer set and maybe cheaper too.
http://cgi.ebay.com/Refrigeration-Aircon-Copper-Tube-Swagging-Tools_W0QQitemZ270017359638QQihZ017QQcategoryZ53226QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Good Luck,
John, KA9OFM
On 8/11/06, W7RY <w7ry@centurytel.net> wrote:
>
> Why not use rubber hose?
> Jim W7RY
>
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
> On Behalf Of mike kendall
> Sent: Friday, August 11, 2006 9:34 AM
> To: amps@contesting.com
> Subject: [Amps] Mechanical question
>
> Hello all,
> I recieved the cold plate (liquid cooling plate that attaches to the
> heat spreader) in for the linear project I'm working on. It has 1/8
> inch copper tubing coming out of it for a couple inches and is designed
> to have more copper brake line soldered/brazed to it. Is there a tool
> that I could use to expand out the brake line a little so it will slip
> over the other brake line and allow a good mechanical connection before
> soldering?
> 73,
> Mike
>
>
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