View Full Version : Mig Brazing
FarmBoy9205
05-12-2009, 07:56 AM
I have done some brazing with oxy/acet torch and am looking for a better method with less heat input and a faster production speed. Any words of wisdom on using Silicon-Bronze wire for brazing. Looking for a quick fix for a number of projects. I would be using it to braze a lot of odd stuff that I have little experience or equipment welding such as stainless and cast iron.
aametalmaster
05-12-2009, 11:32 AM
Silicon Bronze with a mig works great but you are limited to thin metals. Heavier metals use another filler wire Alum Bronze. You use Argon gas also....Bob
http://www.crownalloys.com/page36.pdf alum bronze
http://www.crownalloys.com/page38.pdf sil bronze
Hotfoot
05-12-2009, 12:11 PM
So, aa...when used MIG is no flux required, because of C25? 'never knew I could MIG Braze!:)
aametalmaster
05-12-2009, 01:26 PM
Yup bare wire. 75/25 will work but pure Argon works better...Bob
aametalmaster
05-12-2009, 05:12 PM
Here is a little article...Bob
http://www.mig-welding.co.uk/brazing.htm
usmcpop
05-12-2009, 05:45 PM
Hey, Hootfoot! You can use this to make fancy letters and runes on your gongs.
Hotfoot
05-12-2009, 06:22 PM
You read my mind, Pops!:)
usmcpop
05-12-2009, 06:42 PM
You read my mind, Pops!:)
Nah, I just glanced at the table of contents. With your imagination, I'm scared to read the book. :D
WARNING: Don't give HOTFOOT too many ideas, or his head will 'splode.
FarmBoy9205
05-12-2009, 09:52 PM
Thanks Guys for the information I had heard of Aluminum Bronze but did not realize it you could run it that hot. It is good to know. We all can learn new things, sometime even those that have a lot of welding time behind them.
Rocky D
05-12-2009, 10:18 PM
Silicon Bronze with a mig works great but you are limited to thin metals. Heavier metals use another filler wire Alum Bronze. You use Argon gas also....Bob
http://www.crownalloys.com/page36.pdf alum bronze
http://www.crownalloys.com/page38.pdf sil bronze
Bob, I used MIG silicon bronze in pulsed-spray mode to do the following...hardly thin metal.
http://img.photobucket.com/albums/v252/RockyD/Stuff%20I%20built/RockynHammersmile.jpg
aametalmaster
05-12-2009, 10:42 PM
Rocky, Maybe its just my SB wire since its .024 i sure can't turn it up any...Bob