Intro into Brazing

   / Intro into Brazing #1  

walhondingMF

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Joined
Mar 30, 2022
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283
Tractor
2012 MF2400
I would like to learn to braze. Not something I will do very often but seems like something valuable to know. I don't want to invest much into it. I do not have an act torch set. I have been looking at the benzomatic kit that uses a small mapp and oxygen tank. Seems to be out of stock in a lot of places. I think this will be the right option for me though. Do I need mapp and oxygen? Can I braze with just a blue propane tank?

This is more of a "what do I need to get started" question?
 
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   / Intro into Brazing #2  
You can do some high temp soldering with that setup but if you want to do some real brazing or welding you would be better off with an Oxygen-Acetylene kit. It's a fun way to build, fix and repair.
 
   / Intro into Brazing
  • Thread Starter
#3  
Would that kit be enough to braze something like a chainsaw muffler?
 
   / Intro into Brazing #4  
IF you are half way serious about oxy/acet brazing you really need serious torch set.... THE the big box store sets with 16 oz oxy and mapp gas are just enough to make you really frustrated..... Personally I would not go smaller than the style shown of graphic below..... To learn to braze, there is a dozen or more videos on u-tube to show you how.... The problem with smaller sets is finding a gas supplier that will work with you handling such small cylinders.....

xtremepowerus-torches-tanks-55146-h1-64_1000.jpg
 
   / Intro into Brazing #5  
The cheapest way to play with brazing is with a MAPP gas setup. You can braze light stuff without the oxygen. Remember, brazing is not welding. It is more akin to soldering and flux will definitely be required though you can get rods with flux on them. You may also consider silver soldering which is closely related to brazing and requires higher temps than solder.
 
   / Intro into Brazing #6  
OP: i suggest that before you invest initially in oxy/acet equipment, take an adult or VoED class. Would be a great way for you to experience 1st hand w/feedback the skills without investment. then you can make an informed decision on equipment.
done torch work for years, but i never tried silver soldering as mentioned above. may be worth looking into as well. regards
 
   / Intro into Brazing #7  
I used to braze when I made climbing tree stands and silver soldering for adhering Carbide to tool posts back in my machinist years (a lifetime ago). I only used Ox/Acceletene torch for those. I guess it depends on the thickness of the metal you're trying to SSolder. If its the muffler, I would bet it would. Only need a small amount of silver solder and flux to make it work too. I little silver goes a long way.
 
   / Intro into Brazing
  • Thread Starter
#8  
I do eventually want to get my hands on a torch set. Just hasn't been a big enough push to need it. Since I already have a MAPP torch and all I would need it flux and rod, I may just play around with it before investing any more. If this set up is enough to do a chainsaw exhaust, it may really be all I ever need.
 
   / Intro into Brazing #9  
A torch set is one of those items you may not use it a lot but when you need it you will be glad you have it. Think of it as a lifetime purchase.

Brazing/torch welding is an art all in itself. I've only known two people in my life that were amazing at brazing. One was my grandpa who died back in 1994 and the other a mechanic who had is own garage that let me hang out and watch him when I was a kid.

They could patch brass radiators and fix cracked manifolds and make them good as new. I tried to patch a radiator I punched a hole in and all I did was make a mess. Patch one spot put a hole in another or never get the solder to stick. I have utmost respect for people that have mastered this craft.
 
   / Intro into Brazing #10  
IF you are half way serious about oxy/acet brazing you really need serious torch set.... THE the big box store sets with 16 oz oxy and mapp gas are just enough to make you really frustrated..... Personally I would not go smaller than the style shown of graphic below..... To learn to braze, there is a dozen or more videos on u-tube to show you how.... The problem with smaller sets is finding a gas supplier that will work with you handling such small cylinders.....

xtremepowerus-torches-tanks-55146-h1-64_1000.jpg
I would agree you may have trouble finding a place willing to fill these small bottles. Also I would not be surprised to find that the cost to fill a small bottle, may be as much as a regular size bottle.
You might consider a flux core welder for the light duty work you are looking at.
 

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