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.
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.
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
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 :)
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! czcams.com/video/C6lluYIl9Xk/video.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!
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
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! czcams.com/video/C6lluYIl9Xk/video.html
@@WeBuildStuff I have never seen such bad welding in all of my life! Your weld is too far oxidised. Please, when you turn on the oxygen to form a small cone, pay attention to it: if the small cone is sharp, it is too oxidising, if it is too fury, it will be carburising. Have the cone just very slightly fury. You also don't need any gap-at all. Just tack the ends (no gap) and probably one in the middle because either plate can warp from the flat if the nozzle is pointing more onto one of the plates. Cut the weaving out: all you are doing is spreading the heat away from the joint and heating the rest of the metal up causing more shrinkage distortions and wastage of gas - especially on bigger jobs. So, keep a steady nozzle along the joint line, and a small crater will form for which you add the mild steel filler rod by dibbing it into it to form a pool. The pool will move along as the joint as it is being heated. From this, you can gauge the amount of penetration by the size of the pool and also you can also determine whether you want a flat bead or a raised bead. It is better to do a raised bead, as it looks better. If you still can't get the penetration, then turn it over and weld the back in the same way. Remember, you want the least heat input to the job or you will cause too much contractual distortions, hence do not weave, and all of the heat must go into the joint. You will also weld faster and use less gas (as I say) this way. Also, you bend the filler wire over at the opposite end to prevent the end being poked into somebody's eye and causing potential blindeness! Regards, Tony (time served sheet metal worker, gas welder and brazer).
@@tonyglickman5759 Thanks for watching Tony and expressing your comments. Since making this video I have improved a lot. The main thing I wanted students to get (the 20 views I was expecting on this video) was some confidence using the tools and 'eventually' get better. Many of the comments on the videos have helped me improve and I have since passed that information onto students and modified my teaching for the younger kids that are in the class. :)
@@tonyglickman5759 such bad wielding? Trying to bring people down i see. It wasn’t even that bad. It helped a beginner like me out and taught me the basics.
I’ve been welding a long time. Mostly mig.. I looked up welding with my torch because I had never done it and wanted some tips. This series is extremely helpful, detailed, and well thought out..
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.
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.
I learned welding about 30 years ago.. and forgot much…. I remember using flux and brass or something.. I think it was brazing. I never tried welding w oxy ace…. Nice!
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
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 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
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.
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.
great viddd, i wish there was a vid about assembly/disassembly of the acetylene and installation of the hoses and reverse flow check valves, regulators, etc etcet c
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
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
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.
Nice video, question: when you increased the flame temperature did you only increase the acetylene valve at the torch and then adjust the oxygen at the torch the get the small plume the same size as when you had it at the lower temp? Also, I'm assuming you left the oxygen and acetylene regulated pressures in the hoses untouched?
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!
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 :)
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/
Před 2 lety+1
thanks needed this for welding my dirt bike exhaust didnt want to bother my dad to do it for me
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 purge at the end of the day usually. Turn off the main tank valve, open the torch valve to release all remaining gas in the line, and back off the regulator dial.
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.
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
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.
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?
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.
Pressure on the regulator stayed the same when I adjusted it in this video. I opened the torch valves more and adjusted for a neutral flame. You can usually hear the flame roaring a bit more!
@@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!
Hello...thank you for your video...well done and well explained; however, I do have one questions...you said that when you need more heat you will "increase the pressure," but you don't say increase the pressure in what...the OXYGEN or the ACETYLENE? Thanks.
Both. A couple different ways to do it. Change your tip to a larger one. Open the valves on the tprch handle a bit more until it "roars" a bit more. If doing oxy-a cutting there is a whole other tip you have to add a few changes to the pressure on the oxygen regulator. Eventually I'll do a video on that. Always tricky putting my camera near flames and sparks!
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'
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.
When you say you are increasing the heat, is that by adding oxygen, acetylene or both?? Also, what kind of filler rod are you using? I assume it is not brazing rod??
I added extra acetlyene and oxygen to increase the heat using the valves on the torch. If the flame still isnt enough go up a tip size to get a bigger flame. We use RG45 rods which are general purpose
The acetylene dial and oxygen dial on the torch handle don't get touched once the flame has been adjusted and set. The extra lever you may be thinking of may be a cutting attachment. This video just shows the welding.
@@WeBuildStuff i think you are right. So I recently bought my own victor set after borrowing my buddies a few weeks back. Fell in love with cutting. Then I tried to weld with a cutting tip and that went as well as you would think it would. But if for welding you change tips and set the a and o2 then your good, then its almost like soldering at that point.
Sir, Your students are well served under you and so are we! Thank you.
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.
I like your style sir
idiot and dangerous to drink or smoke any mind altering substance
Sounds like you loved hash and good ventilation 😂
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.
Thanks! I'm still trying to improve my skills but I try my best!
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
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 :)
New video being filmed using tips from commenters. Thanks!
@TheWhitsboy
Yes, this is the correct way to shut down.
Excellent video
I was taught same practice. I was more wondering if this would be a better option to weld thin walled tubing that just wants to melt away with my mig.
Watching this walking into day 3 of welding class. I get more from your videos than sitting in class all day, maybe I should send my tuition to 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!
czcams.com/video/C6lluYIl9Xk/video.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!
@@manualgearshift4965 thanks so much!
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
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...
Get a #5 shade and you'll see lots! Thanks for watching!
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!
czcams.com/video/C6lluYIl9Xk/video.html
Good job, excellent video... very impressed by the kind and patient manner in which you have responded to so many comments.
Thanks for the kind words. Taking the high road usually works for me.
@@WeBuildStuff I have never seen such bad welding in all of my life! Your weld is too far oxidised. Please, when you turn on the oxygen to form a small cone, pay attention to it: if the small cone is sharp, it is too oxidising, if it is too fury, it will be carburising. Have the cone just very slightly fury. You also don't need any gap-at all. Just tack the ends (no gap) and probably one in the middle because either plate can warp from the flat if the nozzle is pointing more onto one of the plates. Cut the weaving out: all you are doing is spreading the heat away from the joint and heating the rest of the metal up causing more shrinkage distortions and wastage of gas - especially on bigger jobs. So, keep a steady nozzle along the joint line, and a small crater will form for which you add the mild steel filler rod by dibbing it into it to form a pool. The pool will move along as the joint as it is being heated. From this, you can gauge the amount of penetration by the size of the pool and also you can also determine whether you want a flat bead or a raised bead. It is better to do a raised bead, as it looks better. If you still can't get the penetration, then turn it over and weld the back in the same way. Remember, you want the least heat input to the job or you will cause too much contractual distortions, hence do not weave, and all of the heat must go into the joint. You will also weld faster and use less gas (as I say) this way. Also, you bend the filler wire over at the opposite end to prevent the end being poked into somebody's eye and causing potential blindeness!
Regards, Tony (time served sheet metal worker, gas welder and brazer).
@@tonyglickman5759 Thanks for watching Tony and expressing your comments. Since making this video I have improved a lot. The main thing I wanted students to get (the 20 views I was expecting on this video) was some confidence using the tools and 'eventually' get better. Many of the comments on the videos have helped me improve and I have since passed that information onto students and modified my teaching for the younger kids that are in the class. :)
@@tonyglickman5759 such bad wielding? Trying to bring people down i see. It wasn’t even that bad. It helped a beginner like me out and taught me the basics.
Excellent teacher! I feel confident that I can start without killing myself or burning the house down. Thanks much, this is great.
But still, you should not weld in the house
As a beginner I could understand your explanation pretty well. Thank you for the video. Good job
Good video. I remeber learning how to do this in the late 70's using metal clothes hangers as filler rod.
I’ve been welding a long time. Mostly mig.. I looked up welding with my torch because I had never done it and wanted some tips. This series is extremely helpful, detailed, and well thought out..
Thanks. I know I have a few mistakes shown in this older video but a good starting point at least. Thanks for watching
Thank you. Most informative for a complete newbie to gas...
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.
Glad you enjoyed!
Excellent tutorial, thank you for sharing. Definitely interested in more oxyacetylene videos.
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'm entering the welding world via oxy/acetylene and your vids are very good, thanks.
Thanks! Check out my other long oxy-a video for some safety stuff I have updated since making these first two.
Thanks for watching!
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.
Rad
that was very helpful. thank you for going over the basics slowly. I learned a lot!
Glad it helped!
Great stuff! I'm a complete newbe working with garden art and learnt a lot, thanks for sharing!
thanks for watching! check out my updated video on Oxy-Acetylene for some new tips and updated safety precautions!
@@WeBuildStuff will do, already subscribed, thanks again!
Omg I fluxing get it for the first time I understand welding ...awesome job........ Subscribed
Thanks. I hope 90% of what I said was correct and helpful!
I've always bee taught to shut off the oxygen first then the acetylene last. The opposite of turning it on basically.
Yes I have updated that in a newer video and with my students. A 15 year bad habit I have now fixed!
Thank you so much. So.much better explaining than my instructor. Total understanding this way
What kind of filler rod are you using
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.
Thanks for watching!
My pop pop died and I’ve always wanted to weld so I inherited it from him and all he has are torches so Thanks for the vid
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.
Thank you very much my friend from beautiful Greece !!!!!.Perfect teacher!!!!
What filler rod are u using
I learned welding about 30 years ago.. and forgot much…. I remember using flux and brass or something.. I think it was brazing. I never tried welding w oxy ace…. Nice!
Increasing the heat will help you achieve deep and good weld penetration.
What is the indication of a more increased heat?
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
Thanks sir, good explain. I understand about OAW now
Thank you for the video. You teach it very well.
Thanks Bob! I made a few mistakes in this one but I try my best!
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?
Between 3/32 amd 1/8 rod is what we usually have in the shop
The only flame that can weld mild steel is oxygen/ acetylene.
Can you do some more oxy fuel vids? You're a really good teacher 👍
Thanks
Much appreciated. I can try to add some welding videos before summer!
@@WeBuildStuff that will be great. Thanks very much!
I might have missed it but how do you adjust the heat? Do you increase your psi to get a hotter weld? Or to you increase the flow on the torch?
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
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.
That's a great tip and great way to explain the visual!
new student here teach
from Jamaica
Hey, what happens if I keep the filler rod in between the two metal plates & weld ? Will it give more penetration & strength ?
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.
great viddd, i wish there was a vid about assembly/disassembly of the acetylene and installation of the hoses and reverse flow check valves, regulators, etc etcet c
Good idea!
Thanks for helping my dumbass pass auto body welding I literally cannot get this
We use brass dipped with flux instead of regular steel filler should i still be melting the base metal? I worry abt zinc poisoning
Great vid..you a good teacher and a cool guy too.
Thanks!
Try not circling so much. Aim the cone down the gap until a keyhole forms then ride the keyhole down the joint while adding filler.nicely done video.
That will be part of video 3 coming up showing how to get stronger penetration! This was just to introduce the techniques. Thanks for watching!
Lovely explanation.
Thank you for these videos im in college learning this but I have a crap instructor he didn't go thru anything with us 😔 like this
Please use a darkening filter on your camera 👍 I want to see the actual welding
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
Great stuff, I’ve always wanted to learn how to weld.
Awesome video with clear instructions
Thank you!
Oxy acetalehn welding is so satisfying
Thanks for watching!
Why did you leave pressure on the regulator? The hose side was at zero but not the high pressure side??
I wondered if tacking on 1 side and flipping plates over to the open gap and starting closer to the end would improve strength.
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
Very helpful. Thank you very much!!!
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.
tomorrow I'm gonna practice what i just watched. thanks for sharing Your skills....
Nice video, question: when you increased the flame temperature did you only increase the acetylene valve at the torch and then adjust the oxygen at the torch the get the small plume the same size as when you had it at the lower temp? Also, I'm assuming you left the oxygen and acetylene regulated pressures in the hoses untouched?
Yes i left the regulator untouched.
Get a higher "plume" with the acetylene and than add oxygen until a neutral flame😊
Thanks that’s what I needed to know
Great job
I think you will become a great welder!
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 awesome thanks, and thanks for posting the links!
@@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!
@@WeBuildStuff indeed, agreed, I love you man 😍😂🙂
Thanks for the confidence boost
Julian has his grade 10, someday maybe I will too. Great video.
Quick question, I’m having a hard time controlling the acetylene torch when pushing my puddle, do you have any tips or tricks to help with that ?
Practice, I do flooring for a living and did so much caulking Its always perfect and that translated well into welding
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 :)
Thanks. Great demo
I had zero interest touching my tongue to hot metal until you said something. thanks.
great vids. Thank you
Thanks for watching!
Your videos are great.👌👌
Thank you
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/
thanks needed this for welding my dirt bike exhaust didnt want to bother my dad to do it for me
Many years ago I learned gas welding with a coat hanger for filler rod. Is this acceptable or is there better metal for filler rod?
I've done that as well but we buy R45 mild steel welding rod for the classroom
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 heard that there is a need to somehow purge the regulator if you do not use it so that it does not decalibrate, how do you do that?
I purge at the end of the day usually. Turn off the main tank valve, open the torch valve to release all remaining gas in the line, and back off the regulator dial.
I’m a total newbie. When you say you “increased the heat” or “increased the pressure,” how are you doing that, exactly?
Open the valves on the torch more and adjust for a bigger neutral flame
If you welded both sides of the plates would it not be stronger ?
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.
If you put a 45 degree angle on both sides would that be stronger still.
Is this essentially tig welding with no shielding gas?
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
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.
100% haha
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!
You can get filler rod at any welding supply store or most hardware stores (home depot, etc)
@@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?
@@crazyhat433 R45 ia a common type for gas welding
canadaweldingsupply.ca/products/r45-mild-steel-tig-rod-1
Hi. I'm in South Africa, Eric my name. I don't know about welding, but interesting. I wanted to know more .
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?
On the torch handle I open both to increase the heat. Terminology isn't always my strong suit!
Good morning, can you use Flux cored mig wire for sheet metal gas welding? Thank you.
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.
Is welding chrome moly tubing about same process? Is it ok to over penetrate so that the weld is assured complete on the other blind side?
Over penetration is good. I would use TIG welding if possible but use what is available to you and make it work😁
when you say "more heat" what does that mean? More acetylene? More oxygen? What psi did you turn it up to?
Pressure on the regulator stayed the same when I adjusted it in this video. I opened the torch valves more and adjusted for a neutral flame. You can usually hear the flame roaring a bit more!
More of both.
You can also buy larger tips for your torch and really get things going
Thanks! I appreciate it.
very nice video.
Thanks for the lessons. I bought a used oxy acetylene set. The needle on the regulator are tembling and I keep loosing my flame. Any advise?
What pressure do you have each tank set at?
@@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!
thanks, this tutorial is more helpful
Good job & good video 🙏
May I know what kind of filler rod you used?...is that an ordinary tie wire? No brazing powder? Thanks
R45 nd RG45 are pretty common welding rods
Thank you sir
Lol why would I lick the filler rod😂...learned so much from part 1 btw...bout to go on training next week...trying to be ahead of the class🤫
How was class?
9:43, terminator... pretty cool
Thanks. One day I'll Be Back to uploading new content!
Hello...thank you for your video...well done and well explained; however, I do have one questions...you said that when you need more heat you will "increase the pressure," but you don't say increase the pressure in what...the OXYGEN or the ACETYLENE? Thanks.
Both. A couple different ways to do it. Change your tip to a larger one. Open the valves on the tprch handle a bit more until it "roars" a bit more. If doing oxy-a cutting there is a whole other tip you have to add a few changes to the pressure on the oxygen regulator. Eventually I'll do a video on that. Always tricky putting my camera near flames and sparks!
What are your suggestions to get a steadier hand when using the torch with one hand?
Practice!
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'
Why is it important to empty the hose , curious
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.
When you say you are increasing the heat, is that by adding oxygen, acetylene or both?? Also, what kind of filler rod are you using? I assume it is not brazing rod??
I added extra acetlyene and oxygen to increase the heat using the valves on the torch. If the flame still isnt enough go up a tip size to get a bigger flame. We use RG45 rods which are general purpose
@@WeBuildStuff Thanks for the information. I am a beginner but your videos are really helpful.
Are you holding the extra O2 lever on the torch the entire time or just holding it?
The acetylene dial and oxygen dial on the torch handle don't get touched once the flame has been adjusted and set.
The extra lever you may be thinking of may be a cutting attachment. This video just shows the welding.
@@WeBuildStuff i think you are right. So I recently bought my own victor set after borrowing my buddies a few weeks back. Fell in love with cutting. Then I tried to weld with a cutting tip and that went as well as you would think it would. But if for welding you change tips and set the a and o2 then your good, then its almost like soldering at that point.
@@Icesith67 yup!