Copper welding question

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Copper welding question nJb 07-27-2007
Posted by nJb on July 27, 2007, 10:55 pm
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 I want to build stands for my glass sculptures out of solid copper. Can
copper be TIG or MIG welded? If not, how about brazing? Could I get a
rod that will take a patina like the copper?

Thank you,

Jack

Posted by Ernie Leimkuhler on July 27, 2007, 11:49 pm
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 wrote:

> I want to build stands for my glass sculptures out of solid copper. Can
> copper be TIG or MIG welded?

Yes and yes.
Pure copper wire and a argon/helium or pure helium shielding gas.


> If not, how about brazing?

The most common brazing rod for copper is Sil-Phos-Bronze.
It requires no flux on copper.


>Could I get a
> rod that will take a patina like the copper?
>

Only copper will patina like copper.



> Thank you,
>
> Jack

Posted by nJb on July 28, 2007, 2:04 am
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Ernie Leimkuhler wrote:
> wrote:
>
>
>>I want to build stands for my glass sculptures out of solid copper. Can
>>copper be TIG or MIG welded?
>
>
> Yes and yes.
> Pure copper wire and a argon/helium or pure helium shielding gas.
>
>
>
>>If not, how about brazing?
>
>
> The most common brazing rod for copper is Sil-Phos-Bronze.
> It requires no flux on copper.
>
>
>
>>Could I get a
>>rod that will take a patina like the copper?
>>
>
>
> Only copper will patina like copper.
>
>
>
>
>>Thank you,
>>
>>Jack

Thank you, Ernie.

Jack

Posted by Derek on July 29, 2007, 2:00 pm
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nJb wrote:
> Ernie Leimkuhler wrote:
>
>> wrote:
>>
>>
>>> I want to build stands for my glass sculptures out of solid copper.
>>> Can copper be TIG or MIG welded?
>>
>>
>>
>> Yes and yes.
>> Pure copper wire and a argon/helium or pure helium shielding gas.
>>
>>
>>
>>> If not, how about brazing?
>>
>>
>>
>> The most common brazing rod for copper is Sil-Phos-Bronze.
>> It requires no flux on copper.
>>
>>
>>
>>> Could I get a rod that will take a patina like the copper?
>>>
>>
>>
>> Only copper will patina like copper.
>>
>>
>>
>>
>>> Thank you,
>>>
>>> Jack
>
>
> Thank you, Ernie.
>
> Jack
If the braze is a bit light for your taste potassium dichromate will
give a darker colouration .
Derek

Posted by Shaun Van Poecke on July 28, 2007, 6:29 am
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Hi Jack
Copper can be tig'd or mig's, but the most common process for joing it is by
brazing. I have done mig welding of some very thick copper (4"x5" solid)
used as buss bars on a gantry crane. Mig copper is not particularly hard,
but its a very weird looking arc and takes quite some time to get used to
setting it up.

Shaun


>I want to build stands for my glass sculptures out of solid copper. Can
>copper be TIG or MIG welded? If not, how about brazing? Could I get a rod
>that will take a patina like the copper?
>
> Thank you,
>
> Jack



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