How to TIG Weld - Everything you need to know // Paul Brodie's Shop
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- Äas pĆidĂĄn 23. 07. 2024
- Our Tig welding 101 video, designed to compliment our two brazing videos.đ€đ
00:00 Introduction
00:46 The Welders
01:54 The Torch
06:28 Welder Settings
07:17 Eyesight
08:46 Argon
09:55 Sharpening the tungsten
15:28 The foot pedal
18:00 Workspace set up
21:59 Rods
22:57 Cleaning the metal
25:01 TIG Welding (Laying a bead)
32:37 Angle of the torch
33:52 Welding a downtube to a bottom bracket
39:14 Welding on a motorcycle exhaust mount
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#tig #welding #argon #fussyframebuilder
PUSH THE PUDDLE ALONG!
A simple phrase at 26 minutes in hit me like a hammer.
Thanks for that Brodie!
If it helped, that's great. Thanks for watching!
Made a world of difference when I finally accepted that I was getting older and put a 1.5 magnification lens in my helmet. Stunning change.
Yes, eyesight is Huge in Tig welding. It really is very precise.
I don't weld that much thin stainless anymore because the puddle is so damn small I strain my eyes keeping focus!
@@Sambasuper Yes, not easy welding the thin stuff...
i have been tig welding for 30 years and you done a good job of giving a beginners lesson!! you covered what needed to be covered and done it well. so good job!
Thank you Mitch. I appreciate your comments. I thought it could be a shorter video but apparently there is a lot of explaining to do!
Newly subscribed and just wanted to say that I appreciate you two putting these videos together and demystifying some things when it comes to bicycle fabrication. You and Mitch documenting this stuff is really important so this type of knowledge is passed along. Canadian legend!
Thank you Michael. It's a good time in my life to be doing these videos with Mitch.
Foot pedal is like automatic gear boxes, they're mostly used in America according to my observation. I don't have a bench grinder setup yet so I always use a cordless drill and the angle grinder to sharpen the tungsten, not the best as it will nock the very tip of with cutting discs and the flap discs will round it slightly but it does the work good enough for 30-40 amps and up, less than that you really want that sharp tip for precision. When tacking two plates of thin sheet in a butt weld a sharp tip is very important not to blow a hole, when doing that I use very short bursts of high amps(usually double that I weld with) with no slope up and short slope down like an instant flash that melts the edges so fast that they fall together instead of slowly melt and curl away from each other and make a hole.
As a welder out in the field we had to learn sharpening the tungsten on angle grinders with one hand and they're also short so that the torch can fit into tight places between pipes so not much to hold onto either so having a drill with you is good.
For cleaning as you said brake cleaners can form chlorine gas when heated which can also be deadly so only use pure acetone or alcohol for cleaning.
Henrik, thanks for your comments. I like the idea of short bursts of high amps. That makes a lot of sense.
Finally! My prayers have been answered!
I am not a welder, I can join two pieces of metal together with a MIG, talking to a man who could he said the most important thing is your comfort, seeing you use those blocks of wood made complete sense, i would like a TIG welder so the information you have shared here is most useful - many Thanks
Thank you for making a very well produced video. One thing I like to do with my Tig filler rod is bend the end over that is not being fed into the weld puddle. It might prevent an eye injury. Thanks again for sharing your knowledge and talent!
That is a good idea, to bend over the end. I have a little piece of 6061 that is tapped for a small Allen screw. I often use it to hide the "other end" as well...
My first welding instructor used to say "we get paid by the weld , not by the hour "
Takes time and patience !
Excellent Tutorial Sir
Thank you keltecshooter. I heard recently that some welders un the USA were charging $75 per inch. Pricey!
Thank you Mr Paul your class was great.
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Paul Brodie I didn't know you could weld. You have a very catchy name and a very unique teaching style, and a nice shop. I know how to weld but found your channel by trying to learn to braze. The brazing is a little difficult still on thick steel but you keep up the good work. I'll be looking forward to videos. God bless.
a pin vise also works well for sharpening short tungsten's. nice video.
Yes, a pin vise would work too, and I have several. Thanks for watching!
I am planning to build my first bicycle frame and TIG welding seemed to be the easiest method, now after watching your video I'm going for a lugged frame. A lot more to TIG weld than I thought. Excellent and a pleasure to watch as always from you :)
Yes, Tig welding a thin walled bicycle frame is not the easiest thing to do. A lugged frame means (probably...) road bike, because most lugs are for road. Don't rule out fillet brazing. It is easier than Tig, and the possibilities are almost endless. Thanks for watching....
Paul: Revisited this 2-year-old video and must say it was chuck full of useful information. Was fantasizing about buying a Tig welder for my half-dozen projects but at 79 don't think it to be a prudent investment. I haven't welded since high school and the learning curve is only getting steeper.
You Sir are an excellent instructor! I didn't have a clue about TIG welding before I watched this, just knew it wasn't easy. You explained the entire process, how it actually works, why you do certain things and don't do certain things. Thank you for giving of your time to pass on your wealth of knowledge. The more of your videos I watch, the closer I get to deciding to go ahead and give building a frame a try.
What actually surprised me was where you placed the arc relative to the weld and the direction you flow it, thought it would have been the other way to keep the tungsten out of the way of the weld.
Thank you! Framebuilding is a great hobby. I hope you give it a try :)
A man of wisdom and I am sure your students loved attending your classes.....one small step at a time gets you close to perfection. Imagine if the entire world was made up of people like you who obviously were given chances to educate but then took the next steps to strive for an active fulfilling life.....one wonders what the world would look like. I suppose we would be living in paradise!
Thank you Andy. I would like to see a world where everybody has food, shelter, and medical. Just the basics. If you want a fancy car or house, then you go out and work for it..
Great video! Very pointy tungstens like that actually give a slightly wider arc that penetrates less, which is usually want you want on thin metal so it's all good. But it's mostly what you're used to. These days we usually use 2% lanthanated rather than thoriated because the thorium is a little bit radioactive. But since you're grinding it outside anyway it's certainly not a problem.
Thanks Ben!
Great video. Thanks!
Good video I'd say I learned a lot thanks Paul
Thank you Robert! đ
great video . a wealth of knowledge
I watched this video again!
Thanks for watching đ
Only seen a few videos so far but you may have just jumped to my #2 source behind Welding Tips and Tricks! Great arc shots, explanations, filming. Thank you for sharing!!
Jordan, thanks for watching! đ
good video, thank you
The bike is looking amazing , cannot wait to see it finished
thank you guys for your hard work
Thanks for watching.
ХпаŃĐžĐ±ĐŸ! ĐŃ ĐżŃĐŸŃĐ”ŃŃĐžĐŸĐœĐ°Đ»!
Another great job of instruction.
Great tutorial as usual Paul đ
Thank you Shane.
I've watched all your welding tips and I'm now a grand master welder. Thanks
That is awesome! Thanks hoah.
@@paulbrodie can't wait to do my first bead!
@@hoah Welding can be exciting :)
SUPERB ------- THANKYOU
Thanks for sharing how you tig weld. Always interestingâŠâŠ đđđ
Hey Paul, i learned TIG welding awhile ago and after a few years not welding, i bought myself a welder to start again. Boy was i devastated by how hard it was to see what i was doing. Yes, my Eyesight was not what it used to be... Great Video again.
Cannot overemphasize having good eyesight and being able to see exactly what is going on down in that little puddle... Thanks!
Great lesson, Paul! Thank you (and Mitch)
Thanks Chris.
love watching your videos; you are like the shop teacher that emphasizes all the right tricks of the trade to be a success.
Jim, thank you very much.
I learned something really cool, glad to find this video
Thanks.
This is exactly what I need!! I just bought a TIG welder (thanks to you) and am familiar only with stick and MIG. I think I need to buy you and Mitch few cups of coffee again!
Only thing I'd like to add is I really recommend moving over to purple electrodes. No one really likes to mess with the radioactive dust the reds put out while grinding them. It's not that they put out a lot, but it's something that will stay radioactive in your lungs for the rest of your life.
No one told me about radioactive dust... I don't do that much Tig welding, but I will be careful.
@@paulbrodie there's a lot of scientific papers on it available online, not only opinions. I'd say as an occasional TIG welder it's not that critical and you apparently do your grinding outside. Worst cases come from grinding with bench grinders without exhaust ventilation and occasionally blowing surfaces in your shop with compressed air. Welding gives out some radioactivity but it's the dust that is something to be aware of.
@@valkman761 I will be careful.
radnor e3 electrode is all i use.(purple) works on both steel and aluminum.
As always, nice video, thank you.
That's an interesting comment about scalloping the electrode. I'll have to try it. I'm a cordless drill/belt sander guy -- I'll try putting the scallop on with the radius of the top roller. I agree about the scratch direction, too: longitudinal scratches definitely help make a tight, focused arc.
You mention eyesight -- one of the single best things I've ever done to improve my welding was to shine a big, bright floodlight at my work. It makes it possible to see more than just the puddle.
At some point, you could do a similar video about TIG welding aluminum. That's a fertile topic.
I like the idea of a bright light. I might just do that. Thanks :)
The best tutorial ever!
Thank you Fredrik.
Best advice I have seen yet,for a complete novice I found this very helpful.
Great to hear! Thanks for watching.
Thanks for this tig welding class. I learned a lot.
Thank you Noe.
Thin walled tig tips are what has been missing! Thank you (from a freakbike maker)
Great information
Thank you.
Definitely acetone, definitely don't leave the wipe rag on the welding bench. Last year, I looked up after a few inches of MIG to see my rag at the other end of the bench fully aflame courtesy of a spark from the torch. Luckily, my welding table is fireproof!
Thank you, interesting!
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Sangat baik menjelaskan untuk penggunaan las argon...
The detail in this lesson is invaluable. I now know I can't TIG weld. Haha!
Yes you can with practice, practice, practice... đ
Hi Paul,
Thanks so much for going through everything in so much detail. As others have said there are plenty of videos out there, but you really took the time to explain the finer points.
Also thanks Mitch for the awesome camera work on all the videos
Thank you Peter :)
Hi Paul, thanks for share your knowledge and experience. Regards from Argentina.
Hello Argentina! Thanks for watching.
Another great video with great step by step! I love to TIG weld but have never welded a frame at all, this tutorial is top notch!
Thank you very much!
If you use mig wire, do this: cut off a piece and clamp one end tightly. Chuck the other end into a drill, and slowly twist the wire but keep it taught. If you do it right it wonât get coiled up and it will stay close to the same diameter but it will get a lot stiffer and will be easier to use as filler wire.
Sounds like a good trick, but I'm not sure my drill chuck goes small enough to hold an .035" wire...
Thanks Paul, I really liked the way you slowly worked through the welding of the BB/ST junction. And that is a really cool fixture you've got there.
Thank you David.
Youâre the best teacher Iâve ever seen!
Thank you. Very high compliment :)
249 thumbs up and still no thumbs down thats unusual on any channel! even though Mig is more a one handed operation I wish I had thought of a steady stand of some sort when welding on old cars years ago it would certainly have helped! great video
Thank you Derek.
Excellent tutorial Paul and thank you for recommending...tremendously informative. Canât wait to go and strike a few arcs in the shop!
Will let you know how it goesđđ»
Thank you Peter.
Awesome
Thank you...
This is exactly what I wanted to see! Paul just talking through Tig for close to an hour. Perfect
Thereâs other Tig videos but so few about thinner material. Arc shots turned out great Mitch!
The material thickness arc explanation with the bottom bracket weld was very helpful. I was struggling with that.
Also I never thought about sharpening both sides of tungsten, of course that makes sense, I just never did it. Hopefully we donât have temps like that again in BC anytime soon đ
Thank you Levi. I watched your Mig welding video too. That's great you are creating too :)
Hallo Paul. Gute Arbeit. Mechanische Werkstatt fĂŒr klassische MotorrĂ€der, das ist auch mein Ding. Weiter so. GruĂ Arnold
Thanks for watching! đ
Nice video :) thank you. The needle / collet system makes me think of an airbrush somehow.
This is a great tutorial! I have a lift arc machine, no pedal, so basically instead of adjusting the amperage on the fly heat control is just down to travel speed and machine settings. Also nice to see someone validate welding the joint in sections like that; my dad, who taught me to weld, showed me that as a way to limit the amount of heat you put into the joint (and thus the distortion), but he's a (retired) pipefitter, and so didn't know much of anything about bikes. But I guess steel is steel.
Thanks Matt. A pipefitters skills are completely different from a frame builders set of skills. I could not weld with a machine like yours. I need a foot pedal to have full control over the puddle. But yes, you say that steel is steel.
Thanks for the video, just found your channel and it looks like good content, thanks!
One mistake I noticed. After the weld is stopped you should leave the rod in so it doesn't carbonize and is protected by the argon. You shouldn't have to clip off the end of the rod after each pass.
I only clip off the end of the rod if I'm trying to do a Really nice pass. Yes, I could leave the rod in the argon Fitbit still might have a very small ball on the end. Welders a ll have their habits and ways of doing things. Thanks for commenting...
@@paulbrodie Yes, we do have our eccentricities. You do some nice work!
@@mosfet500 Thank you.
I used to stick weld when I was young. I guess what surprises me the most with this video is how little of the rod you use.
--- I wish my dentist would be as focused as Paul ... At least I learned a lot ... Again ... Thank you.
Tom, we all want our dentists to be highly focussed. My next appointment is a couple weeks... Thanks for watching!
Late to the party, but...
I sometimes use .023 mig wire for tig welding too. I use Ron Covell's trick for straightening it: I cut mine to about 18" in length, put one end in a vise, clamp a pair of safety wire pliers to the other end and give them a couple pumps to twist the wire. You'll be amazed how straight it is when you remove it from the pliers and vice.
I have some very thin wire that I use for welding up Excelsior gas tanks. Much smaller tungsten too. I will try Ron's trick for straightening. Thanks.
I wanna see a video on the Libido Full Suspension bike ;) Thanks for the great content
Kasper, thanks for watching!
There's a nifty little tool that model-makers use, called a 'pin vise'. It's essentially a small handle with a miniature drill-like chuck on one end. They come in various sizes (some have swappable collets), to deal with everything from holding super-fine wire, up to small drill bits. Cheap and easily available online or at hobby shops. You might find one handy for getting the last few inches out o your tungstens (and maybe less 'over-kill' than using a full-sized power-drill :)
Thanks.
Now I'm gonna have to find me a tig welder.
I love watching all your weekly instruction videos,You have inspired me to get into Tig welding just for a hobby ,I've been watching the for sale adds for several months to purchase a tig welding machine in my price range ,Im retired and kinda old, 66 and I do things old school,So I dont mind buying old tools,I recently found a good Tig welding machine for what I thought was a great price $650.And by some miracle it was only an hours drive away.Im getting it set up,I still need a bottle of Argon gas and the regulator flow meter,Would you recommend buying or leasing that bottle,which is best?
One last funny note,As I watched this episode again today,(Im brushing up on how you approach Tig welding).You described both your welding machines ,and that unit hidden behind your cabinet doors is exactly the same unit I just bought.L-Tec 250HF square wave.I really didn't remember you had that machine inside your cabinet.I know you mentioned the noise it puts out, Im a cabinet maker 35 years self employed, all my machine make noise so that's not a big problem.
Thanks again for again for all your hard work and these great videos you and Mitch have made, that entertain, and help inspire others.
Randy, thanks for commenting. I (finally) own all my welding bottles...
Thanks for that, you demystified a few areas there. Is a skill that I would like to get into, but time and the capital costs have thwarted me so far.
Mark, thanks for watching. I hope you get a welder and practice your skills!
Hi Paul, Thanks for all the interesting video's. You mentioned you were going to do a video on a primary chain tensioner for a Cub. I am updating my trials Cub, and would like to see what you come up with. Thanks Marty Lunde
Marty, yes I am working on it. Feked Off sells the PVL conversion with a chain tensioner. I want to make one for my Electrex unit. I need the (2) long Allen screws 5/16" X 22 TPI X 2.5" (?) long. Feked Off won't sell me the (2) Allen screws, nor will they tell me where I can get them. Most unhelpful blokes! So, I cannot proceed without those Allen screws.
If you have ever welded a used 2 stroke exhaust it comes with a bonus experience , lol đ
Yes, I have had that experience!
The trick if you ever need a fuel tank welded is to put some washing up liquid on it before you present it to your tame welder. It smells nice and if it jumps off the bench at him, you can claim innocence and tell him that you were as thorough as possible.
Not that I've ever needed to get a race tank welded in a hurry, not me, not ever.
:lol:
Great video, thanks! Wondering what amperage range you are working with on thin wall bicycle tubing?
I would say 40 - 55 amps. Thanks for watching!
I have seen people cut the mig wire and throw it in a drill and vice and give it a spin to get nice straight filler wire
Yes there has been a Lot of comments about that sort of thing.
Phosgene gas is the deadly gas you're talking about. Using any cleaner (not just brake cleaner) that uses chlorine is a big no. The UV light created from the arc, superheats the chloride and creates the phosgene gas.
Extremely informative and needed video about frame welding. Not sure if i missed it, but can you also share what amperage you use for the various frame parts? Much appreciated.
Thank you. With my old machine, it is very hard to tell exact amperages, because the knob and settings are so vague. I am going to guess and say 40-50 amps...
Do you ever use a back purge? Just getting ready to build my first frame and I'm wondering if it's worth investing in a purge setup.
Love your videos & great to get your wisdom on this subject. From what I can tell you're a great teacher, sad I missed the chance to take frame building 101!
Also thanks for the arc shots Mitch!
I am not setup for back purging. For steel it is not necessary. You do need it for stainless steel and titanium frames. Some of these welders back purge on steel frames, but you definitely are spending more $ on argon.
Ah , if only knowledge was that easily shared ,,, experience certainly never is.
It does take a while to get the hang of Tig welding, but don't give up!
@@paulbrodie practice and patience ,,, thats the key ,,, but you could say that about most things in life.
@@tomthompson7400 Yep. It's like the old saying about Saxophone. Learn it on a weekend, master it over a lifetime.
@@Alanbataar so true ,,, every days a school day ..
Dear Paul I really enjoyed your information on Tig Welding there was a lot of information you passed on. Question I am going to build an exhaust system for my drag volkswagen out of 304 stainless steel, this size is 2 1/8" diameter what size tungsten should I use and what type wire and size should I be looking at?
Header pipe are usually thin wall, so 1/16" tungsten with an .035" welding wire.
Acetone cleanup/wash under the grip onyour torch. or isopropyl alcohol might be just as good but more friendlier to the leather., then hairspray underneath.
That would be pretty funny... me buying hair spray!
this is how bicycle grips are stuck in place at a bike shop i know of. cheers
I saw one thing you should never do when sharpen the tungsten, better to grind the opposite side from where the color is, always good knowing what tungsten you have!
But other than that, a good instructional video - well informative.
Stor, I only have 2% thoriated for steel, so I can grind both ends and still know with certainty what electrode I have. Thanks for watching.
@@paulbrodie Oh yeah ofc, you do what you want with your stuff, i meant how important it can be when you are around other people. Like in a workshop or so.
I always teach my people to not grind the coloured side! Thanks for the great vids.
Hi Paul.
It's nice to see you baçk, looking a fair bit thinner but hey at least
Yes, I have lost a LOT of weight...
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Another masterpiece of instruction. Thank you. I do have a question about tig brazing. Does it have a place in frame building?
Thank you Walt. I have thought about your question. Years ago one of my employees made a frame that was Tig brazed. I do not know anyone else that has done so. There must be a reason why. What that reason is I'm not sure...
@@paulbrodie Thanks for the reply. I thought about it a little more. I think that it would not work well because no flux is used; so the brazing material does not bound to base metal well enough. And nobody makes flux cored brazing rod/wire.
I remember the first question I asked the professional when I started welding: Is there a law against cleaning your little window? He didn't need to see as well as he did when he first started welding. I thought I'd finally found something truly interesting to take for show and tell. What do kindergarten teachers know?
@38:00 - The happy little bottom bracket.
I was going to ask about rehearsing the hand movement but you read my mind ... in advance. How did that work?
It works well for me. I always do it on the tricky bits.
âĄâĄ
Paul do you build the engines your self for the race bike ?
Christopher for down under
Christopher, yes I do. In the case of Ruby Racer, I made the 1919 Excelsior motor from an old photograph. Thanks for watching!
I need a welder so I can learn how to weld again... I have so many ideas and things I want to make but i don't have a friend w/ a welder so I'll have to get one from Harbor Freight and start playing around.
I have to fix my ebike and I want to make a sidecar for it so I can take my son on rides w/ me... He loves going on rides but the bike trailers are always getting dirt and stuff flung inside because it's right behind the rear tire, so I want him to have a sidecar so he's closer to me and feels safer, he has autism and when he gets scared or upset and he wants to hold my hand, hes right beside me and we can talk using ASL easier as well. đâ€ïž
If you are going to buy a welder, consider supporting your local welding supply shop. If there are any problems or issues, I will bet the service is better from your local shop, and you are supporting the local economy. I hope you do build a good sidecar.
@@paulbrodie - IDK of any welding suppliers in my town so I'll have to look around... If I do find one I might be able to get a few refresher courses before buying one. Thanks for the advice and the idea... đ
Faz um alicate lokring para colocar conexĂŁo de alumĂnio em tubo de geladeiras e emendar tubos de alumĂnio em tubo de cobre para nĂŁo precisa soldar ; pesquisa air/ o que vc faz tambĂ©m nĂŁo dar pra vĂȘ muito bem !
Thanks for watching!
Well shit. I learned to TIG weld at a motorcycle shop where I was told contact cleaner was the bees knees.
Well, there are different brands of contact cleaner, but I have no idea if one is "safe". Best just to avoid for welding.
Ah, a Cub engine on the bench!
Yes, I'm trying to make one good motor out of four. Not easy!
I think what I'm seeing is the arch (electricity) is burning or melting the piece and creating a gap (so to speak) and the rod is filling the gap creating the weld?
Well, sort of... The "arc" is melting the metal, yes. There is always a gap between the tungsten and the workpiece. The rod isn't "filling the gap", it is being melted on to the workpiece, creating the weld. Make sense?
What about contamination of the grinding wheel? Others say that can be an issue. I guess by dressing it before you eliminated that problem.
Yes, if the wheel is properly dressed, contamination should not be an issue!
@@paulbrodie Thanks for the reply Paul and thanks for all these great videos. Love you workmanship, and your shop. I just need to try find one those small diamond dressers here in ZA (home of Pratleys), I only have a big thing with wheels that makes a big mess and does not work well on small stones.
One other thing I have wondered about: how important is it match the what you are feeding into the weld to the metal alloy you are welding? obviously iron to iron, Al to Al but finer details of the alloy?
And hoping you will do a session on Al u min um TIG - that is really my end goal.
@@Kosmonooit Matching the rod to what you are welding. Yes, most of the time, but not always. When I am welding 4130, like a bicycle frame for example, I use a mild steel filler material. The reason being is that the mild steel will allow a very small amount of "flex", probably on a microscopic level. This helps to prevent very small cracks from starting.
The first time I have been disappointed with one of Paul's videos...I just assumed he would be building a twin cam head for his Aermacchi!!! Maybe next week...??? đđłđ
Don't forget I'm retired and trying really hard to slow down..
So that means you are thinking about it...đđđ
@@VMX42AUS If a pattern maker offered their services for free, I would do it. Otherwise, I'd likely spend $20K on patterns... Too much for this guy.
What size and type of filler rod and electrode are you using for the aluminium?
In this video I didn't weld an aluminum. I did in the cylinder head fin fixin' video, and used a 1/16" 5356 rod and a 3/32" tungsten.
Would you find it easier if you used a self darkening visor?
No, because often I'm welding very thin metal using only 40-50 amps, and most auto-darkening helmets aren't very sensitive in that range; you have to buy a very high end model. call me old fashioned.
Thoriated tungsten is radioactive so use respiratory protection while youâre grinding it.
Yes, I have heard that. I only grind them outside when there is a strong wind :)
Is that a Tiger Cub or a BSA bottom end on workbench? (B50?) It's a long time since I worked on either
Thin steel is just as easy to gas weld, kinda always considered TIG as used for 'exotic' metals (aluminium, stainless steels, titanium, etc) and welding thin to thick although it's probably because I learned gas welding (oxy/DA) and never learned or owned a TIG
Yes, Tiger Cub. I actually have 4 bottom ends. Video soon.
just curious, no back purge on the stainless welding?
You are correct. Stainless should be back purged. I tried to setup a quick system, but it didn't work. Thanks for watching....
Hi, would you ever tig braze a bike frame?
Probably not, simply because I have very little experience with Tig-brazing. I'd rather Tig-weld or fillet braze.
I don't have first-hand knowledge, but a while ago I had the same question and did some research. The impression I came away with was: it's probably not a great idea. Also really if you're using a TIG machine might as well go all the way, & if you want that brazed look might as well use a flame.