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  #11  
Old 12-19-2017, 09:40 AM
Rick Mullin Rick Mullin is online now
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What alloy base material and what alloy filler wire? I am interested in your TIG technique when welding brass. I am only successful TIG welding bronze alloys as zinc content in brass is a problem for me without a flux. I oxy-acet. weld brass. I am always interested in learning a new technique.

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  #12  
Old 12-19-2017, 01:40 PM
Paul-S Paul-S is offline
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Hi Rick
The brass I use is called m63 here !
I asked Peter Tommasini advise on what to use.
Kent also provided me lots of info about doing it with gas.
The alloy filler I use is CuSn6.
It has a bit difference in collor but that doesn't matter.
Here some pictures of test pieces.

Greetings Paul


Top side of the weld is not a price winner on beauty but !!


Penetration on the backside is not bad to me.


After grinding no pinholes !!!

After a bit finish im pretty happy
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Last edited by RockHillWill; 12-31-2017 at 08:22 AM. Reason: changed CuZn6 to CuSn6
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  #13  
Old 12-19-2017, 07:19 PM
crystallographic crystallographic is offline
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Quote:
Originally Posted by Paul-S View Post
Hi Rick
The brass I use is called m63 here !
I asked Peter Tommasini advise on what to use.
Kent also provided me lots of info about doing it with gas.
The alloy filler I use is CuZn6.
It has a bit difference in collor but that doesn't matter.
Here some pictures of test pieces.

After grinding no pinholes !!!

After a bit finish im pretty happy
Beautiful work, Paul.
Happy Christmas,
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  #14  
Old 12-20-2017, 04:16 AM
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Gojeep Gojeep is offline
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Nice work! Thanks for showing it.
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  #15  
Old 12-20-2017, 09:02 AM
Jim Tomczyk Jim Tomczyk is offline
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Beautiful work - please keep posting pics of the progress

Is the resin hard enough for you to beat on / hammer form or shape some parts over?
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  #16  
Old 12-20-2017, 01:46 PM
Paul-S Paul-S is offline
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Hi Kent
Thank you! Glad you like it.
I also wish you a beautiful Christmas


Hi Jim
Yes the resin is pretty hard!
I'm able to tap it .
But with a bit care.
Thanks.

Greetings Paul
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Last edited by Paul-S; 12-20-2017 at 01:49 PM.
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  #17  
Old 12-31-2017, 08:22 AM
RockHillWill RockHillWill is offline
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very nice work Paul. Thanks for sharing.
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  #18  
Old 12-31-2017, 06:14 PM
Peter Tommasini Peter Tommasini is offline
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Paul
The weld finished off OK with no pin holes
Did you use flux?
Peter
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  #19  
Old 12-31-2017, 07:47 PM
Paul-S Paul-S is offline
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Hi Peter happy new year
Yes no more pinholes
I tack with only with a drip of filler rod.
Than clean both sides very well and use very little flux on the backside only on the final weld.
That makes a very big difference for the penetration quality.
Adding the filler in a constant manner keeps it flowing well and cools down a bit.
I weld about 30/40 mm and drop down temperature by releasing my footpedal and wait a littte and continu and so on.
I think that works to prevent the zinc burnes and couses pinholes.
But thats just the thought I have about it and I think it work like this.
Any other thoughts on this are welcome .
But the results so far are prommising something.

Greetings Paul


Greetings Paul
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Last edited by Paul-S; 12-31-2017 at 07:59 PM.
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  #20  
Old 01-07-2018, 05:11 AM
Paul-S Paul-S is offline
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Little progress on the bottom part!

Greetings Paul
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