For welding brass, you definitely want one of the low zinc alloys of brass. If you wanted to braze its more like soldering, you don't melt the base material but get it hot enough and it uses specific brazing rods. that melt before the material does. Thanks for the great videos Jimbo!
HI Jimbo. My name is James and I'm a Welding Instructor, you can weld this in horizontal for bearing ring. but you need flux to help with the liquification of the metal to fuse properly. No. 90 flux helps with de-zincification. this is why you were having a hard time .. Hope this helps 😀
Jimbo! How you doing buddy? Hope all is well. Brass is a pain to tig. There's couple different options could've went with. 1) old school oxyacetylene brazed it. 2) amps set at 160 with pulse at 3 sec intervals w/ post flow and lanthanated tungsten 3) emailed Jody over at weld monger. The man is a wealth of knowledge in all forms fashions and metals. He would've been of great benefit for help. Other wise keep learning Jimbo trial and tribulations only way you'll learn anything. Good job great video, as always I look forward to seeing your next project 👍.
That turned out beautifully. I don’t even attempt to weld brass. I know the higher the zinc the harder it is to weld. Some brass could be as high as 45% zinc.
The reason tig welding brass is difficult is because of the zinc. Zinc has a really low melting point. Combine that with the fact that brass is very thermally conductive and requires quite a bit of heat input to weld, and you have an arc that tries to vaporize the zinc. Use oxy acetylene and braze the brass together (this is the method i prefer to use, its slower but you can sneek up in the heat and hold the heat easier in my opinion) try it I think you will find it much easier. If using Tig: Set machine to about 50 pulses per second, with background set on 50, and use just enough heat to get a puddle going. AC balance: set it for max penetration and use a tapered tip. Use an argon helium mix: Brass is very conductive and takes lots of heat, so an argon helium mix can help. Use the base metal as a filler: For the best color match, use the base metal as a filler. Hold the puddle long enough to let the bubbles go away, or "flash" the foot pedal to freeze it before the bubbles break the surface. Good luck in the future and great video, most would have removed all the struggles... Best Regards, Chris T-TOWN WELDING AND FABRICATION
I bet if you spent about $25K on that cool chinese laser welder I keep seeing on Facebook ads, that lays down perfect welds like a bead of caulk it would make brass welding a picnic!
It looks like that worked out pretty good. Never welded on brass myself but I think some brass alloys have aluminium in them, and that if that's the kind you have, you might need to use AC (and maybe an aluminium bronze rod as well).
Good looking table! I think for the leg braces it could've looked good to drill and rivet the braces in. maybe quicker, easier, and better looking than brazing them in there. Live and learn!
Jimbo I use ac and 50 pulses per min. If you're welder doesn't pulse just use ac and I ball my tungsten tip. Oh I use the blue color tungsten, lanthenated I believe it's called.
I am not an expert but my dad was a welder and I picked up a fair bit of knowledge from him. Your first mistake really was choosing brass. The zinc in it melts at a much lower temp. than the copper and vapourizes before the copper starts to melt. The copper also conducts the heat away so you in this forever war of copper and zinc. Never ends well. Bronze is copper and tin and is much easier to weld as tin isn't as reactive. Most people would solder/braze bronze or brass with say silver solder using oxy acetylene gas thus avoiding melting the base metal. All them zinc fumes will damage your lungs too - best not weld it ever again IMHO. Thanks for sharing your experience. You did as well as could be expected for sure.
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It's been around 40 years since I last brazed anything and I agree with the comments about using oxy-acetylene especially on the thick brass. 👍
For welding brass, you definitely want one of the low zinc alloys of brass. If you wanted to braze its more like soldering, you don't melt the base material but get it hot enough and it uses specific brazing rods. that melt before the material does. Thanks for the great videos Jimbo!
Jimbo has the patience of a Saint 😂😂. 90% of the video would have been beeped out if I were recording myself with this project 😂😂😂
I think that's why he does the voice overs lol
HI Jimbo. My name is James and I'm a Welding Instructor, you can weld this in horizontal for bearing ring. but you need flux to help with the liquification of the metal to fuse properly. No. 90 flux helps with de-zincification. this is why you were having a hard time .. Hope this helps 😀
Jimbo! How you doing buddy? Hope all is well. Brass is a pain to tig. There's couple different options could've went with. 1) old school oxyacetylene brazed it. 2) amps set at 160 with pulse at 3 sec intervals w/ post flow and lanthanated tungsten 3) emailed Jody over at weld monger. The man is a wealth of knowledge in all forms fashions and metals. He would've been of great benefit for help. Other wise keep learning Jimbo trial and tribulations only way you'll learn anything. Good job great video, as always I look forward to seeing your next project 👍.
Jimbo is one of us!
That turned out beautifully. I don’t even attempt to weld brass. I know the higher the zinc the harder it is to weld. Some brass could be as high as 45% zinc.
Great video as always, and thank you!
Very nice project Jim! You handled that well!!
Very nice good job your respected
The reason tig welding brass is difficult is because of the zinc. Zinc has a really low melting point. Combine that with the fact that brass is very thermally conductive and requires quite a bit of heat input to weld, and you have an arc that tries to vaporize the zinc.
Use oxy acetylene and braze the brass together (this is the method i prefer to use, its slower but you can sneek up in the heat and hold the heat easier in my opinion) try it I think you will find it much easier.
If using Tig: Set machine to about 50 pulses per second, with background set on 50, and use just enough heat to get a puddle going. AC balance: set it for max penetration and use a tapered tip.
Use an argon helium mix: Brass is very conductive and takes lots of heat, so an argon helium mix can help. Use the base metal as a filler: For the best color match, use the base metal as a filler. Hold the puddle long enough to let the bubbles go away, or "flash" the foot pedal to freeze it before the bubbles break the surface.
Good luck in the future and great video, most would have removed all the struggles...
Best Regards,
Chris
T-TOWN WELDING AND FABRICATION
Nice to see you welding something different.
Awesome Jim you should machine the bolt head on one's for decoration that would look even better
great job Jimbo
Wow that looks really good, nice work 😏
I bet if you spent about $25K on that cool chinese laser welder I keep seeing on Facebook ads, that lays down perfect welds like a bead of caulk it would make brass welding a picnic!
Looks awesome 👍👍
Wonder if the jig was acting as heat sink in your "vertical" Welding vs the "Horizontal"?
It looks like that worked out pretty good. Never welded on brass myself but I think some brass alloys have aluminium in them, and that if that's the kind you have, you might need to use AC (and maybe an aluminium bronze rod as well).
Least you are bloody honest Jimbo good effort
Cheers from Aus
It's been years, but I had success oxy. braising brass in the past.
Bless Nice video as always. Thanks 😊
perfeito eu não sabia que era tão fácil soldar bronze no processo de solda tig
Just a thought. Maybe to be consistent with the ring gear bolts the lower bolts could have received the surface treatment to match?
Great thanks for the new video
Any issues with the zinc fumes coming off the brass (I couldn't see if you had PPE under the helmet).
Try pulsing you will have to play around with settings and try silicon bronze filler as well..
I didn't even know you could use a tig for brazing, I have only used an oxy torch and moved the flame closer,farther to control the heat.
Good looking table! I think for the leg braces it could've looked good to drill and rivet the braces in. maybe quicker, easier, and better looking than brazing them in there. Live and learn!
sandblasting should even out all the imperfections
Cool table.
Why not just torch braze instead of Tig?
clean metal, tig brazing use two pulses a second 33% pulse, 33% background. as a starting point.
Maybe try pulsing?
When brazing never melt the parent material. Only run hot enough for the filler metal to flow into the joint.
Most likely from a gear driven elevator machine I have a bunch of these in various sizes I’ve pulled out of various machines over the years
When drilling brass just break the cutting edge, it stops it grabbing.
👍👍
💯🎯👍
Jimbo I use ac and 50 pulses per min. If you're welder doesn't pulse just use ac and I ball my tungsten tip. Oh I use the blue color tungsten, lanthenated I believe it's called.
Perhaps put your ground directly to the peace.
The suports you put on the legs might have looked better bolted in, with like a 1/4 bolt.. brass is terrible to braze
ac my frend
I am not an expert but my dad was a welder and I picked up a fair bit of knowledge from him. Your first mistake really was choosing brass. The zinc in it melts at a much lower temp. than the copper and vapourizes before the copper starts to melt. The copper also conducts the heat away so you in this forever war of copper and zinc. Never ends well. Bronze is copper and tin and is much easier to weld as tin isn't as reactive. Most people would solder/braze bronze or brass with say silver solder using oxy acetylene gas thus avoiding melting the base metal. All them zinc fumes will damage your lungs too - best not weld it ever again IMHO. Thanks for sharing your experience. You did as well as could be expected for sure.
Couldn't you of used oxygen and acetylene brazing very basic
yikes
I think it would have better to use oxy/acyt. to braze it.