[TheForge] Brazing vs welding

Sat Nov 16 10:26:01 2002

Do they make any brazing rod for stick welders?

---
It is I who formed the blacksmith, 
who fans the flame into a fire and
fashions a weapon fit for it's work.

On Fri, 15 Nov 2002 20:58:03  
 Peter Fels and Phoebe Palmer wrote:
>At 06:20 PM 11/15/02, you wrote:
>
>
>There are a bunch of specialized fluxes available for brazing...or you can 
>use the  same borax you forge weld with.  For gas welding , flux coated 
>rods are handy. You can get rods to match a range of colors and rods that 
>melt at different temperatures so that you can build complex structures is 
>stages.
>I have a very old wrought  griffin figure that was forge braised. You can 
>even  forge braise steel with a copper penny.
>You can also get bronze wire to go in your MIG.
>The secret is preparation!...Grind  the metal all the way down to 
>bright..no corrosion, no oil, no crud. Get everything just right and the 
>bead will follow your torch like a dog..er, moth?  The stuff contracts 
>faster than steel and a fat braising bead can tear 16 ga apart.
>It is a good attachment method sometimes when you don't want to mess up the 
>steel's grain structure.
>Especially older rods had a lot of zinc and sometimes cadmium in them..the 
>fumes will screw you up good ( bad). If the rod flashes as it wets, you are 
>running way too hot...you want a fluid, peaceful puddle. Get " low fuming" 
>rod..use a good particle filter and good ventilation.
>With a torch and a good hand, you can build up little figures and parts  of 
>bronze with surprising precision.
>The method will attach a wide range of alloys quite nicely...from brass to 
>cast iron to stainless..painless.
>You all owe me a nickle now....P
>
>
>
>>Any kind of flux used?
>>L Brown
>>
>>At 09:40 AM 11/15/2002 -0700, you wrote:
>>>Its higher tech, higher bucks, but I use silicon bronze brazing rod all the
>>>time with the tig welder. It works great for brazing dissimilar metals
>>>together, and puts much less heat into something because of how controllable
>>>the tig torch is. I often use it to braze thin wall tubing, as there is much
>>>less distortion when you dont have to actually melt the parent metal. Tig
>>>brazing also really works great in those razor blade to propeller shaft type
>>>situations- I used to do a production candlestick where we brazed on 24 ga
>>>stamped steel leaves to 3/8" round, and any other technique would have
>>>reduced the stampings to a puddle.
>>>Ries Niemi
>>>
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>>
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>
>
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