Torch Cutting Basics Everyone Should Know | Oxygen & Acetylene Fuel
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- เผยแพร่เมื่อ 1 มิ.ย. 2024
- Matt from Warrior Welding Tx wants to show us how to properly set up and use a cutting torch. Safety is number one in any work environment so Matt goes over safety and some field fabrication as well as cutting techniques.
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Folow me sir
I am 74, retired fabricator, welder. In my learning stage, An experienced old timer taught me to use a center punch on the chalk marks, because the mill scale will pop off and you can lose your line if trying to free hand the burning.
Exactly what they teach us in welding school in quebec
Yes, hot-rolled steels do have that affect. Vibro-etch tools can also help in maintaining a clear guide line.
Same age and technique. You can see the flame break over the punch marks. Especially good for cutting curves without bothering with the circle burner attachment.
Yea.. you can do it like that or use a scribe but I prefer using the center punch
Nice tip
Here's a secret trick. The guide angle iron he's using, do a quick clean up with a flap disk, then get a soapstone and rub it on the angle. The torch will glide and you'll end up with a flawless cut
Thanks.
I have never used a guide on my torch cutting. Maybe why my cuts are ugly
thanks sir
@@cobes11 lol. Always room to learn. My cuts aren't perfect as well but I keep practicing. Good day
Here's the real "secret tip". Take that stupid little cheat-bar and throw it as far away as you can. And instead, just practice and learn to have a steady hand. Like a machine. I'll come into the shop any Monday morning, still half drunk and lay down a cut ten times smoother than what was shown here.
I had never used a cutting torch before and needed one today to make some mounting brackets. There was no one at the shop to teach me and it had to get done today. This video alone was enough to teach me everything I needed to know! Thank you for this!
Get it 🔥🔥🤟🤙
It's pretty easy to pick up the basics, but hard to become *really good* at freehand cuts.
Personally, I went for a 30A plasma cutter because it's easier to plug in an air compressor than it is to keep refiling gas tanks.
@@BlooCollaGal Good decision
Everything? LOL. I'm not being a smart ass, but that statement rings of famous last words....for instance...can you clear weldement with a torch, what size tip can you use? Wait until you learn just how much you can really do with a cutting torch. You'll be the best!
Ive seen men who claim to be tradesmen and when I see their Oxy cuts straight away I know if they are full of BS or nor, I watched one so-called tradie melt the steel instead of cutting it, he didnt get the job, lol, and you learnt everything you need to know, oh my god.
One of the top 10 most useful videos I've ever seen, I think. *This* is what the internet is for.
Thanks for the free education!
Good job and well explained. 40 yr retired industrial sheet metal journeyman. I still watch things I know how to do looking for tips lol. Never to old to learn. Any one who tells you they know everything about anything watch out for that guy.
"Take pride in your work and do it right the first time." That right there tells me this gentleman is someone to listen to. Thanks for this quality instruction.
FYI, for those of you just starting out or only doing you’re oxy/acetyl cuts infrequently this process will assist you in doing very well. But, it takes paying attention to the melting metal at the torch flame tip, as well as how the torch is clearing the cut material and if your hearing is still pretty good and not real noisy where you are at you can also benefit some from combining your visual indicators with your listening to the sound of the cut for popping and changes of air velocity sounds from the torch flame and gas flow. Also, don’t expect your first cuts to look as clean and slag free as his. He did not cover the importance of the condition of the torch tip face and nozzles which the torch tip face needs to be clean and free of slag balls on it and especially the torch nozzle holes need to be clean and not worn out, goose egged or larger at the tip from improper tip nozzle cleaning in their shape or oversized from excessive use and cleaning. Always Preheat before trying to cut, Keeping you torch cone flame height correct and steady not going up and down in reference to the metal being cut and/or banging the torch cutting tip face into your work especially the molten area will extend torch tip surface and cutting nozzle hole cleanliness and life of the tip. Get comfortable as field conditions allow or in any way needed to meet drawing accuracy tolerances on specified technical drawings for the cut of finished plate. Torch tip face and nozzle cleanliness along with preheat, attention to molten flow at torch nozzle as it cuts through the metal, and possibly the most difficult skill part a slow, deliberate steady pace based on visual and some listening feedback to the cut when you can hear well enough to use that and developed eye, hand and muscle coordination and feedback control of torch flame cone height from material and torch travel speed while constantly observing what’s happening at the cut. If you are not a good welder odds are the same parameters of attention to detail in weld puddle tie in, bead height and width along with really good eye and hand coordination and steadiness are key in both processes.
I’m just starting out and I’m struggling compared to my classmates. This comment was so helpful and encouraging. I really appreciate you today!!
Excellent and insightful commentary, all newer people to cutting torches need to read this 👍👍
Very well said, keep the tip clean, and steady
I just turned 70, my dad got me started as a kid, but when you watch a pro such as yourself, there is always something to learn. Thank you !!!
Sometimes not being "the smartest man in the room", is okay,knowing YOU are not "the smartest man", ( why "reinvent the wheel"). Knowing WHO is.,.well. I'm not in LEAVENWORTH or Guantanamo 🤗🤗🤗🤔SemperFi
Thanks for taking the time and having the patience to explain thoroughly. What is rudimentary to some is valuable to a beginner like me.
Excellent intruction!
Agreed.
The smartest man in the room. My hat (cover..USMC) is off to you. We don't have to reinvent the wheel, learn from others failures & SUCCESSES! I am pleased the TRUE old school artisans of their trade share their knowledge before they are all gone.
I like the way you take the time to shut down equipment then restart the process to make sure people understand
Matt, if I'd had you teach torch work in Metal Shop class 50 years ago I would have really enjoyed it. My life may have taken a different direction. Thank you.
True. He’s so laid back and relatable
I got my dad's old victor torch set and the difference in quality between a newer victor set is unreal. My dad was a welder and got his back in the 60s
I haven't used a torch in 10+ years.... Wanted to review before doing any hotwork again... exaclty why you said... lot of gas and lot of potential... This was excellent! Thanks for the great walk through and safety guide! subscribed!
When I was in welding class 1975 the instructor old guy showed us how to cut. He had a 1" mild steel plate, scribed a 12" circle TOTALLY FREE HANDED cut it out. Then chucked it in the lathe it only took . 040 thousands to clean up in all axis. That man could cut. I lost the bet cost me a few beers but I also learned allot in that class too. Good job.
one thing i was taught was once tanks shut off always loosen the regulators too prevent high pressure when opening tanks again. good avdice and teaching. well done
Exactly what I was taught 40 + years ago. Thanks for the video, now I can use this to introduce my Grandsons to part of my world.
I just got a oxy acet torch, but didn't know how to use it. This was very informative. Much respect to the "take your time and do it eight the first time" comment. I'm getting into welding and fabrication as a hobby, but I'm a quality inspector for Homeland Security boats. I can't tell you how many times guys have to redo stuff because they're in a hurry. Pssst. Hey, you're not getting ro the end of the work. When this boat is done, there's another right behind it. Do it eight the first time
Great video, I use an oxy torch for thermal expansion at work to get stuck stuff unstuck, I’ve always wanted to try the cutting nozzle and now I’m going to. 👍🏽
At 15:20 ish I hadn’t noticed him change the plate, though he had leather hands to be able to touch it like that before I realised it was red paint. 😂
🤣🤣👍
I was a pizza cook for 10 years before I learned how to weld and I'm pretty comfortable just grabbing 500F things....
If it isn't *literally* glowing then I can touch it without burning myself too bad.
I've been screwing around with cutting torches for years now, wish i had this lesson when i first started, would have saved a lot of frustration
you hear a whistle going back up your hose, quickly go turn the Acetylene fuel off! Never use a butane lighter to light the torch! Never carry a butane lighter in your pocket while cutting! Words of wisdom from my instructor 41 years ago! Great video!
Very good information for the new oxy acetylene torch user.
Thank you for your professionalism. Very helpful and simple, yet very important information.
Us beginners are enjoying the lesson to it's end. Thumbs up sir. Pliz stay blessed.
Im 35 and today after having the torch for 2 years i finally was able to cut the right way... I will continue to watch your videos and learn more thank you so much.
New welding student here; this video was very helpful from what I remembered in my recent class; you covered the process for a lot of the stuff I learned in class. However, in my class I learned that keeping the regulator completely cleared and clean of any oil, grease, or petroleum products physically on the regulator, otherwise that can cause an explosion. Also, never wear nylon or polyester clothing, because the sparks and fire can cause a fire or melt your clothing if it makes contact with your clothing, and never use the torch to blow off your clothes with just the oxygen, since that is a safety hazard to ignite your clothing, I believe. Also, make sure your boots are not nylon and your pants are fully covering your boots, and make sure your welding jacket is fully buttoned up and sleeves tucked into your gloves, and don’t forget to wear your beanie to protect your hair from catching on fire.
There are a bunch more safety measures involving the oxy acetylene tank and oxygen tank for making sure all the parts involving the regulator and such are functioning properly, and checking if there any leaks (I think you can use soapy water near the nuts), and there’s also flashback that we need to be aware of.
Thanks so much for the video.
I'm an electrical contractor that needed to cut some 6" bollards that were on our job that needed to be removed. I have a cutting torch that I purchased a long time ago but never really used it. I really need to use it but didn't know how our feel comfortable in cutting the bollards off. After watching Matt I feel like I can now cut the bollards feeling comfortable! I can do this! Thanks so much Matt. You are the best teacher I've seen on TH-cam!
I sold and demonstrated various welding/cutting equipment for over 40 years. Wish there were instructional vids as good this back then. Would of made my job a whole easier, as the trainee could of watched the vid. before going hot and picking up the equipment. 👏👏👍
Thank you!
I've been using torches about 45 years started when I was about 10 years old and I'll tell you what very educational you taught a few things I didn't know thank you
Great video on Torch Cutting. Just wanted to add three more items that should be done. 1 - Like all the comments below ALWAYS ALWAYS back off the regulators after closing the main bottle valves then OPEN the torch valves to bleed off any gas pressure in the lines/torch then reclose the torch valves. 2 - Just before opening the main bottle valves open the torch valves to ensure no gases have built up pressure in the lines/torch from leaking by the main valves and regulator. 3 - I always clean the torch tip after someone has used it or had a bad blow back. This takes all of 5 minutes, unscrew the nut holding the tip and remove it for inspection ensuring no damage to the seating surfaces then run the proper size hole cleaner through each hole then take a small drill and chamfer the holes just slightly and again run the hole cleaners through each hole to remove any burrs that might have been left in the holes. This will ensure you'll have a clean cut every time.
That's how I was taught in trade school in 1967.
Like I said before. That is exactly the way I HAVEN'T been doing it for over 60 years and none of out Union Ironworkers amd Millrights don't do it your way either. We use both hand and machine torches in the shop 6 days a week here too. (Just for the record we have had manifolded gas and oxy since like 1970. and used liquid oxy bottles on field projects longer then I care to remember.
If I caught a guy taking a drill to a tip like you are talking about I'd send him down the road so fast nobody would remember what color his truck was.
Reading the comments. Seems to me that you know exactly what you're talking about and many garage door junkies think they are experts. They're not and it's obvious. Good job. You are 100% right on everything you said.
Hey man for what it's worth I've never seen any of this. I got a wild hair one day, got my equivalency and started going to classes for welding. I think they all have the same mindset that you do as far as everyone has seen this. I just wanted to take a minute to share that so you know there are people like me out here that you ARE helping 😂 never been around a welders/gas torches. Thank you for all your videos, It's been my religion lately
just to point out one VERY IMPORTANT step i think you missed. when you are getting ready to cut and are going to turn on your gasses from the bottles to the cutting tool you should as a first step back off the valve tap on each bottle on the bottle side, or make sure the valve is completly shut. doing this ensures that if you open the bottle tap the pressure of the gas doesnt HIT the cutter side gauge and blow the diaphragm as the shut off bottle side valve will stop this direct gas flow. once you are ready you slowly open the bottle side valve letting gas through to the cutter side valve where you adjust the pressure to the cutter tool. but baring that one small item i think your vd is as good as i have seen. wishes from australia.
Thanks so much for a clear cut - ABC style tutorial. I haven't used a torch since my welding class in high school. I'm excited to get back into it and this really helped me out.
I've got a set up I made with a torch mounted stationary pointing down, and I have a slide table on rails. I just push it through like a table saw and get very clean straight cuts.
Yes, they make a radiograph, a motorized unit that holds the torch. It runs on a small track. You clamp the track to your plate and it cuts in a straight line.
This is the best instructional video on any topic or subject I have ever watched.
This might very well be the best welding channel on youtube
Glad you think so!
Thank you very much for all the detail info. Liked to way when you started all over with the settings so no one gets confused. Not to many people do that
When you shut down after used, it's important that after turning off the cylinder valves, you open the valves on the torch to remove the pressure from the hoses, then turn the regulator valves anticlockwise to shut them off.
In school, yes, In the real world, no.
Same as lighting the torch. After you have been using a torch for a while you set the oxy and gas and light it together too. None of this gas first then oxy. like the school teachers tell you. - If it's so bad how do burning machines with auto ignition work? POP! that's how. And how do i know these things.....Been doing it that way since 1959.......I got torches and regulators that still work just fine that are older then the kids that are trying to tell me I have been doing it wrong,,,,for over 60 years.
@@mathewmolk2089 Yes, exactly. I do the same thing, a little oxygen, then a little gas and light it. Saves all the black smoke.
3 minutes in, you've actually taught me more! Years ago I bargained svcs for a welding setup. Got library books, practised. Experience and trial are great, as is book learning, but tips and basics fillin those gaps. NOW, to learn TIG....
I just start O and A cutting and have to thank you for the best basic lesson yet.
Finally i learn the abc of the cutting torch...i waited so long for someone to explain so precise and clean what to do how to adjust and when start cutting... You Rock buddy!!!
I’ve worked with some good burners over the years and picked up good tips from them when it comes to Oxy Propane or Acetylene cutting.
Thank you for the video, very cool. I used to be an hvac technician and performed numerous repairs and coil replacements which involved acetylene and oxygen as well. Never did I think it was capable of cutting steel like that 😂
Best Acetylene video I have seen as I am learning. Thank you.
I didn’t know anything about welding with Oxygen & acetylene. I have to say you explain things very easy to learn. You are a Excellent Teacher.
Thanks Bobby! 🙏🏻
You’re an excellent and confidence inspiring teacher. Well done from England.
18:44 most impressive part... Drawing a darn near perfect circle by hand! Good video mate.
Great video! Thanks for stressing safety as it seems like people forget it with gas welding and it can get scary really quick.
Every time I shut down the torch I back out the regulators and I make sure there backed out before I open the tanks so there's no spiking .... If you're doing a lot of cutting it's good to know the flow rates per acetylene tank or you can draw out the acatone from the substrate in the tank... I became very good at splitting exhaust pipes and burning out the center of bolts and rivits on spring hangers on trucks.. practice cutting a bolt from inside a nut with out getting into the threads of the nut and then a nut from a bolt with out getting into the threads of the bolt and from many different angles... I miss my days as a spring shop mechanic carving up suspensions then rattling everything loose with an impact hammer at Palmer spring in Portland Maine... There were a few times when I had everything cut and took a break and waited for someone to yell "are you done yet" and just hitting the frame with a hammer and everything fall apart on the floor... "That fast enough for ya"
I've been using oxy/acetylene since around 1964 in high school and found your video a very good introduction. Although I've not made welding a full carrier it has come in handy during many instances of repairing or fabricating custom equipment and saved me money on auto and home repairs.
WHEN YOU NEED TO CUT A HOLE IF POSSIBLE YOU CAN DRILL A SMALL HOLE FIRST SO A CLEAN CUT CAN BE STARTED. ALWAY KEEP IN MIND TIME IS MONEY. SHORT CUTS CAN MAKE MONEY BUT THEY CAN ALSO LOSE MONEY IN THE EVENT YOU HAVE BACKTRACK TO FIX THE SHORTCUT MISTAKE. BE A TRUE CRAFTSMAN TO YOUR WORK. MAKE THE FIT UP CORRECTLY AND THIS WILL SAVE THE WELDER TIME IN NOT HAVING TO DO MORE WELDING THAN NEEDED. PROPER FIT UP IS STRONGER THAN FILLING WIDE GAPES. THANK YOU FOR THIS VERY GOOD LESSON IT GETS THE NEW UP AND COMING WELDERS STARTED OUT RIGHT
Drilling a pilot hole is an excellent idea. The thicker the base metal, the better a drill hole works. This saves time, money and hassle....especially if you are trying to burn through 8+ inch or centimeter thicknesses.
Just in college taking a Oxy-Acetylene course for Carpentry apprenticeship and this video is my study guide for next week. Thanks a bunch
Outstanding educational video, I have learned a lot about using the torch. Thank you!
THANK YOU! I just learned of several things I've been doing wrong for quite awhile.
Great video- I learned several things I was doing wrong-Thanks Tim from MI
Glad you enjoyed it
Excellent presentation. Gas/Oxy seems to be a almost forgotten part of the industry . Not many take the time to do gas welding . So a BIG thanks for the edification. Stay safe.
In hobby shops,,,,yes. - In construction and actual industry, No,,,,,except for plasma,,,,but you seldom see Plaz in the field. No real professional uses a cutoff wheel in a Metabo.
@@mathewmolk2089 True out in construction and the industry we use gas/oxy cutting a lot, and we also use plasma for when we cut down/disassemble silos. Sometimes its just way more time efficient.
Easily the best oxy-fuel cutting video I've seen. Really like that you snuck some layout math in there too. 🤘
Thank you for the high quality lesson. Described in a way that anybody can understand this valuable skill.
I'm making a small wood stove for a cabin and I bought the miniature bottles to use. My dad and brother used the torch set bit I never did. It's a good time to learn. That's for the video.
Thanks I really needed a refresher. Back to work.
I’m going to my states welding and fabrication team and I am the torch cutter for the team and this helped me so much
Thanks, great tutorial. I haven't gas welded since the 70's, and just inherited my dad's victor set. If it could only talk. Thanks for both the refresher and some great teaching. Give's me a bit of hope, as I move forward. Now stick, tig and mig are in the horizon at some point.
I started a Shoring job a few months ago and just off this vid I got great starter info and notes.
Very detailed, precise, and quick. Nice video and instructions 👍👍👍🔥
wow, guy really explains it without fluffy words. I didn't know gas welding was so dangerous. I appreciate the cautions. I can see how that angle iron guide was so handy. Same as using a circular saw. If I cut with a circular saw freehand, I can see the wiggling in the finished cut. Same with his metal cutting.
SQUARED AWAY INSTRUCTION. RESPECT!
I cut ti all day it is amazing. Most fun I've had only doing it for 6 months so far
Great video. And you are correct, safety is number one.
Good tip, as a Woodworker / Handy man DIYer i did not realize those sockets existed a few years ago i had to replace a Element on a Hot Water Tank in one of my Boats and i wound up having a Oddball open end Wrench i acquired from my Grandfathers Collection that fit i was also lucky the tank itself was small enough. for me to lift it out of the engine room and work on it in a less cramped area
Excellent video. Great technique, great tips. You are so right about NOT overtightening.
Only thing I'd add is you mentioned safety multiple times, but you don't have the steel toe'd shoes. Some sites require it, and you even mentioned how dropping the piece or the dross on the hoses is going to be bad news. Same goes for toes.
Thanks for the hard work and giving back.
Great video thank you. Being a novice jack of all trades, I some times need a refresher. This was perfect !
Love this instructional videos there the best on you tube. I took welding in college and the professor always sent us to watch WT. 👍🏻👍🏻👍🏻 I agree with the gentleman below me, yes use a center punch where your going to make the initial hole. Also when cutting use a slight minuscule angle when dragging and cutting so as not to get any mill scale into your flame tip.
VERY NICE... I SEE WHY YOU'RE THE MAN FOR THIS TEACHING JOB... The company you work for is VERY lucky to have you to teach... you do so very well!!!
I have a acetylene torch that I haven't used for years. I will be using it in the near future. This was a great refresher video to watch.
Thanks, Vinnie
It's been decades since I've done any cutting with a torch. I would have liked to have seen you cutting the 4X4 cutout as a demonstration exercise. Thanks for the tutorial.
Using a torch to drill bolt holes. Much faster than drilling. Good to know.
In some fab shops if your doing rough work the boss will insist you cut the holes with a torch. It's rough but saves a lot of time. The difference would be 1/8 stock versus 3/4. For 1/8 you would punch first and if you don't have the equipment then drill. It all depends on how precise the hole has to be.
Great video, it’s been 10 years since I used I used a torch when I was in apprentice school for plumbing. That’s an awesome video to refresh me.
Thanks for being thorough. I'm going to use your presentation for my Welding class.
Matt knows his stuff !!!!
I have been using torch for years and you did a great job of explaining everything brother!
Thanks for the explanation! I work in automotive and welding is an area I still have little experience in. Really want to expand my skill sets into this area.
Very well done. Im not a welder/weldor, anymore but still weld for fun when I need to. Its fun to watch welding videos.
Thank you for the video, and for utting safety first.
Regards from France
Thanks for the tutorial dude very educational and easy to understand im excited to start my career in this trade. The hands-on experience is what I enjoy. I once tried torch cutting and Mig welding in college didn't think anything of it until later on i was good at it
I really appreciate your knowledge. Please don't stop.
Near perfect, detailed, highly useful education video. Thank you!
Thanks! I have not used the torch for cutting in about 8 years and needed a refresher on the pressures and flame setting.
Not all torch manufacturers have the same shutdown procedure. Smith is fuel gas first then oxygen. Victor is oxygen first then fuel gas. Great video.
And thats is victor one
Thanks for this! Mine is a victor style and I close the oxy first then fuel for shut down.
Triangle combustion rule
Oxidants - presure - fuel(hidrocarbon)
A bit fuel Enought to blow oxigen tang
Its always Acetenyl and then Oxy. A before O or up you go! The idea is that the Oxy will blow out the flame, and then you turn off the oxy. If you turn off the oxy first the gas could continue to burn back up the line, ignited by the hot tip.
@@trevor5290 my torch light up is A then O and shutdown is O then A. That's by the book it came with. It's by victor.
Thank you for taking the time to show a step by step process.
You're a great teacher. Thank you.
Thank you very much for the video. I'm a hobbiest and this helped me tons on set up and cuts. Great details and safety practices 👍
Excellent Video Matt Arnold! Thank you for the fine job and taking the time to make this!! You can tell when you've seen a good video because it makes you want to grab up a torch and see if you learned something 😉
Thanks for the explanation. Much appreciated, and FYI you are a excellent teacher.
I'm about to get into all this welding and cutting with car restos so I'm glad to have watched this vid as well as we as read the comments. Easier to watch and learn then read from a book in most cases
My class first time watch and cut lesson is like firework hahahaha feels so different watching what teacher show and learning by how other cut and self experience. There's me after 2 week passed facinated by how to cut just watching this video on youtube hahaha
Thanks man I'm learning as I go I had my flames all worng probably why my cuts are hard to do really helpful
Excellent video. thank you. I need to develop this skill.. and learn/train more on oxy. will be back for more.
Awesome video ! Love the way this guy teaches. Thanks Matt!
excellent video, well organized, with safety as the key, Thank you, I'm sure this will help me stay safe in my endeavor into metal working!
One of the most well made and presented videos that I have seen on TH-cam. Thanks.
Thanks for sharing your experience and knowledge. Well done