Video for my high school students to follow as they learn the process of using the Oxy-Acetylene torch holbrooktech.we... Music: Hey Sailor - Letterbox
I loved welding in high school and college. In high school we used to lay out several little balls of hash and smoke them first using the hot filler rod. The teacher couldn't smell it because of the fume extraction system. The teacher used to comment how I was such a relaxed welder. Good times.
Besides the excellent video, instruction, and length (not too long), welding the first set of bars insufficiently was great. This is exactly what's going to happen to the student when they go at it the first time. So seeing that through, the results, THEN, then seeing what the adjustments are, a second go-around, with a better result - that's education. Well done!
Thanks! And since making this video I've had a chance to improve as well. I don't get to gas weld as much as I want but it's fun giving the intro to students . Thanks for the kind words
I'm a welding muppet and I found these two videos excellent. Well paced, good, clear, succinct explanations, no jargon ans good visual demonstration. Thanks heaps.
Is better practice to leave regulator valve open, after bottle valve is shut, then open torch valve. This will release all pressure within the line back to tank valve, you will notice that one of your gauges is still holding pressure. This is residual pressure between gauge and closed valve on bottle, if left for a while it could fatigue gauge. I was taught to always make it a habit to release the pressure when I finish welding. Regulator valve can now be closed. Well done! Great video, keep them coming.
Good tips thanks! I typically shut the tanks down myself at the end of the properly like you have said but for students I find this is a simple way to at least drill the safety into them :)
Very, very, good. You didn't talk to fast for me to understand everything. I'm just getting started and really needed instruction. Could have made a lot of mistakes. This was very helpful. Thank you
your comment has made my day! Check out this video with some better tips. I made some mistakes in my part 1 and 2 and I address them here. Watch it and then use some of the information to make you sound smarter with your welding instructor! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-C6lluYIl9Xk.html Don't forget to subscribe so I'm motivated to keep making videos! I start teaching at a new school this year and once things have settled I hope to make some more videos! Thanks for watching!
We Build Stuff absolutely! I shared this channel with the other 40+ yr old female doing a major career/life change in my class-when we were in high school girls didn’t do welding, if it was even offered. Thanks for these videos! The safety points especially are gold!
I like the fact that you show insufficient welds, as well as good ones: It gives us a better understanding of how it's properly done. Also, nice touch, specifically reminding us to put the striker away: If you don't remember to do THAT, then you have to find it. I've never used my torch to weld, although I've used it to braze thousands of copper refrigerant lines. Now I want to learn to weld, and this video has been a terrific refresher course on torch operations. Now if I can only figure out how to see what I'm doing, through the mask...
great video. I like that your show your attempts that didn't work out so well and then try again. makes me feel better because I suck at this. at my shop, the teacher who is a union iron worker insists that you reverse the valve opening process when turning off the torch. that is, turn off oxygen first and then acetylene. Never had any problem doing it this way.
Thanks for watching! I have some bad habits in this video that I have updated in terms of safety procedures. New video here! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-C6lluYIl9Xk.html
Great video series. Im needing to weld in order to make firearms like MP5s and Mac10s. I feel like gas welding gives you time to learn about whats going on during the fusion of two metals but the beauty of gas welding is it doesnt require electricity and EMP proof, easier to learn (electric arc welding is instantaneous and doesnt give you a chance to correct your mistake), and you can weld everything while electric welding limits you to certain steel and alluminum is hard to weld. Im downloading your videos so i can rewatch at my pleasure.
In this day and age where tig is more accessible gas welding like this isn't as common, but I have seen it used to clad weld bronze propellers and I have used it to braze cast iron and weld auto body sheet metal. The weld will go better if you dip the filler rod in some flux first. You'd be surprised how good a weld you can get with old wire coat hangers as filler material.
I had a friend in high school whose dad used nothing but wire coat hangers when welding floor panels in an old truck. They seemed to work well. This gentleman was one who could build or repair just about anything. It was a fun place to hang out.
I was trained in welding in the Air Force and used every welder the military had and enjoyed it. Now after I was hurt in a bombing in the middle east I can not remember things and have to refresh again. I have an oxy/acn welding set up but wish I had a stick welder or mig welder as well.
VERY GOOD on the cold end marker. For my smelter I have a rod I use to stir the aluminum so I can get the slag off the top. I have a piece of plastic I left on the end because I figure it would melt off if it was hot and I'd know better than grabbing it.
Holy cow you did all that with a number 0? I use a 3 for brazing copper and I was looking to dip my toes into welding. I like a nice roaring spitting flame for brazing in the wind and a more gentle roar with little spitting for brazing inside/without wind. You can also notice with a nice super hot flame that the weld/braze is done "locally" like with your second take where the outer edge of the workpiece wasn't even glowing yet while you were laying your bead.
One more trick, when using a gap create a keyhole where the puddle meets the gap. Dip filler rod in this area this will enable full penetration which will make a stronger weld, and will also give a better looking weld( stack of dimes with practice)
That's freaking hard man... the right flame temp, the right gap btween tip and weld pool all in play here.. damnn.. one wrong move and you bore a hole right thru
Thank you so much for the instruction! Issue:. Caged nut inside a 1999 Toyota square tubular frame had busted free of it's spot welds. I therefore cannot remove the bolt which holds on a control-arm that I curb-sht last winter and bent it. Needs relaxing. My daunting task: Welding a 2.5" × 4.0" patch cut from a square foot of 12-gauge cold-rolled steel. The patch will the cover the home I made. But after watching your videos-and the lack of penetration issues-I may now patch in ine-inch strips width-wise so that after each strip I am able to take a mirror and check the backside for ample penetration. I bought a Central Electric 125amp flux-core welder which to perform this operation. Unfortunately, I am not getting the hang of it. I sunk $650.00 in a Oxy/Acetylene tote kit this past summer, so's I may as well try it;. I though gas would burn through the 3mm thick metal. However, after watching youTube videos, I believe I will be okay.
Get a piece of 1/8-3/16 thick piece of angle and cut it into short pieces and practice welding it back together with the mig. That's what I had in the garage when I taught myself and picked it up within a couple welds.
The weld really should be the strongest part of the metal. This type of welding is good for stuff that wont be under any real stress. I think theres a reason alot of people dont weld with a torch and start off teaching stick welding
Agreed 100% . We usually just use the gas torch for heating and bending but I do still try to show the basic techniques so they can move onto tig welding and be used to the similar movements of working with a puddle
If you look closely inside your puddle if you keep the heat push to a decent decent temperature you will see what looks like a little bubble spinning around and moving around inside of your puddle. If you can keep that thing the same size and keep it moving fluidly it's easy to keep your puddle at the same relative temperature throughout your weld. Helps with penetration and strength.
I appreciate your instruction , I am trying to learn how to gas weld with propane and coat hangers, I now it is not the best material but it is just to learn ,once I get the method down I can use the correct material.I see how I need to develope my circular motion first and then coordinate my dipping of filler material, teaching is an art .The material I am using only about .04 thick so it helps me to keep a close eye on burn through, my question is , what diameter of filler rod are you using?
I'm a professional fabrication welder who is certified in every process except oxy-fuel. Apparently, it's extremely messy TIG. Don't think too hard about the Heat Affected Zone size. Or at all, really. Oxy-fuel welding is like traditional blacksmithing. It's an awesome but totally obsolete technique.
The important thing is how you control your torch and spread the puddle around. I personally take it up and down rather than just leave it there. I leave it in the middle when I am starting puddles though.
Thats for next time. This was my first time trying to film it so if I do anymore I will throw a welding mask in front or play with my exposure in camera
If you want more penetration, make sure your gap is just a smidge bigger than your rod. Make sure you burn both edges out to make what would look like a key hole, also instead of circles try doing U’s and keeping your rod in the puddle alternating from where your torch is.
Thanks. Since posting these videos for my students I have been getting better myself and learned a lot of new tricks thanks to some helpful comments! I usually do a zig zag or a U and have been having students leave a gap :)
What are the pros with gas welding compared to mig? All I'm thinking about is the crazy amount of heat that's added to the whole work piece, that I assume would be distorting the whole thing. Especially if it's got some length and width to it. I have both mig and a oxy-ace equipment, but I'm kind of unsure when to I'll get to use the gas.
I increase the flow on the torch or use a bigger tip. In the class we use a smaller tip because of light duty applications. Anything thicker we use the mig or arc welder
For sure. The point of these welds wasn't to show strength. I have students start like this so they can see the way metal penetrates at low temperatures
I was welding some older metal and it popped a couple times. What may cause the puddle to pop and kinda explode? I read it might be bad or rusted metal? What if that’s what you have to weld? I wire brushed and sanded prior to welding as best I could but the metal was 70 y/o.
If clean it should be okay. Try adjusting how much oxygen you are using via the torch knob to get a neutral flame. Sometimes too kuch oxygen or being too close to the metal can cause an air bubble to form weldguru.com/welding-flames/
Yes. For students I have them start with one so they can see the amount of penetration so they can improve. I have improved since making this video and practicing more as well.
How thick is the metal and what is the max thickness you can weld like this? Wondering if I can use oxy/act to weld 5/16 because my little mig welder can’t weld it properly. It’s maxed at 1/8” lol.
I would say that you can upgrade to tig welding very easily once you figure out the technique of controlling the puddle and your filler material. Essentially you just need to add a foot/torch handle pedal/button and can be very proficient with both
Great video, thanks for sharing!!! So here's my issue.... I had a pacemaker implant procedure and my cardiologist said that can't use an arc, Tig/mig welder (etc) because it'll interfere withy pacemaker.... SO I would like you to recommend me to a decent oxyacetylene rig because I wanna learn more about the ancient way of welding with oxyacetylene and I'm mostly doing it for fun! I got the $$$ to spend, so I would ask of you to recommend to me a nice/decent rig I have 400.00 - 1000.00 that I want to use for it, could you recommend 3 complete rigs for me? From lowest to highest price? 😊 Thanks in advance ☺️☺️☺️
Honestly the best thing to do is go to a local welding or REAL hardware and tool supplier and have them put together a package for you. I've bought oxy-acetylene rigs (everything except the tanks) for $400 but they go much higher depending on brand and accessories. The one you see in the video is: www.kmstools.com/victor-medalist-250-medium-duty-welding-cutting-outfit-21138 Another kit from my local guys m.kmstools.com/uniweld-oxy-acet-torch-set-141400
@@WeBuildStuff I decided to get this kit Victor Portable Tote Torch Kit Set Cutting Outfit With Cylinders, 0384-0944! I'm gonna keep watching your videos and practice, I think I'll probably run out gas and oxygen pretty fast 🙃
@@helixomnibus spending some money to hone your skills and have fun will always be worth it. That's what I keep telling myself when I buy fishing gear!
Not having pressure on the regulators when not in use can extend their life is what we were taught. That being said we don't always do it because I feel it is a bit wasteful of welding gas.
How does gas welding compare to electric welding? I am thinking about getting welding equipment and wonder if this is easier or cheaper than tig welding. With gas you don’t need a circuit, but is is harder to achieve a good weld on stainless or aluminum or steel? I want to work with at least those three metals.
If you have the option tig welding is a fantastic choice because of it's versatility to weld different materials. We end up using the gas torch for basic brazing, learning coordination, and reinforcing safety concepts. We end up using the torch more for melting and heating in our day to day shop use with the students.
for welding: a clean tip helps but the most common cause is the ratio/mixture of oxygen to your fuel/acetylene. Here's some info written by a smart person: www.ijera.com/papers/Vol7_issue3/Part-5/B0703051418.pdf for snacks: turn off the hot air popcorn popper
Great video! It answered a lot of questions I was curious about. Can you tell me a little more about the filler rod?...what is it and where can I get it? Thx!
@@WeBuildStuff any more detail? I see plenty of electrodes for stick welding, but I am struggling to find anything that calls itself filler wire. I see plenty of mig wire spools. Could I use that or am I looking for more specific? I see people mentioning coat hangers as a filler wire. Does that mean it is just any wire that is small enough to melt and be added into your welds?
At roughly the 5:00 mark where you said you "increased the heat, increased the pressure", did you do this at the handle or regulator or both? Was this on the oxygen side, acetylene side or both?
I’m about to do this for my builders military technical training and I’m not gonna lie I’m intimidated by it lol I have never ever done anything like this before
Watch the long version (20 minutes) on my page and also check out my good buddy Emil @ Way Of The Wrench for his welding videos. We teach this stuff to 13 year olds. Once you get the safety stuff figured out it just takes practice and coordination. All skills can be learned with a good mindset and practice. Ask your instructor for help or tips and don't be afraid to make mistakes. Drop a question anytime!
@@WeBuildStuff Thanks for getting back to me. I know I set to what you said in lesson 1 but I have to keep my eye on them when I am using the torch. I will reply again.
@@jshivprashad turn the torch knobs slowly when adjusting. Adding too much oxygen quickly can sometimes extinguish the flame. Could be a few things... good luck!
i would like to learn how to weld for the sake of being able to repair things. with so many choices how do you choose? mig, tig, stick, gas can you repair for example a lawnmower deck using gas?
There are many options and I would suggust getting really good at what you have available. The thing i like about the torch is the ability ro also heat amd bend metal, braze, and do basic fixes. For strength I love my Miller mig welder. If I wanted more options In would go for a combo stick/tig welder. Old school 'farm' and general construction uses stick because it can be more 'portable'
Looks great but seriously...who has the time for that? By the time you got your first tacks done my Syncrowave 250 would have welded three of those lengths w/ 3/32" rod. Gas welding is useful for cast iron I guess.
@@samj1185 212cc utility motor with pieces of an ATV frame and the rest custom machined go kart style.... Still not quite safe for trail riding yet haha
@@WeBuildStuff 'safe' is a relative term usually dependent upon your ability and attention to detail. That and a good helmet. Build it! Can't wait to see it.
