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.
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!
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.
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
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 RU-vid!
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.
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
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
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 😂
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.
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
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.
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.
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.
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!
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.
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.
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.
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.
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.
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.
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
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
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
I really appreciate how you teach on how everything is being taught you makes it easy it be cool to meet you I went to welding school in Washington state didn't finish do to family stuff going on I went into pipe welding miss hearing the sound of a welding machine going and all the bells n whistles that go along with the field of welding thank you for helpful video
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.
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!
This is best class on running a touch I've seen. Great. We sharpened our soap stones on any nearby concrete. Allowing a tape (measure) to snap shut even that amount will lengthen the hole the rivit is thru that holds the L. One of my tapes is over a sixteenth out at any length. But then again, the tape's been on a lot of jobs since 1979, Ha!.
Ok, I'm gonna say it, if you have been using the same tape since 79 you deserve a new one. As a carpenter I used to go through one a year or so. To be fair, that tape got pulled out of the pouch 20 or 30 times an hour.
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.
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"
Great video as always. I go to college during the school year and weld during the summers (to afford college) and its always nice to watch videos like this to brush up on things.
@@jessemasterson2096 construction and oil field work is nothing but connections. I'm just grateful to have made enough friends in the field who help me out when they can
I am about to get a torch to have my first experience. This tutorial was fantastic. I would have liked to hear some mention on flashback arrestors. Thank you very much.
I just bought the radner house brand torch set up at airgas. Like it very much. The striker is a bit crappy. Gun has built in flash back arrestors but I'm going ask about having some off the bottle too as a safety.
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
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.
When you explain flame dynamics, you should also demonstrate the importance of the "clean black line" that should be seen all the way through the preheat flames when the cutting oxygen is engaged, indicating the cutting tip is in good shape.
Great presentation of starting mix-gas cutting. I enjoyed and learned while relaxing after all this Houston rain we have been getting. Turkey & Coke on a Friday eve....and education value. Thanks JwgK
I love the fact you mentioned "Where are your hoses" while you were a 1/4 way into your cut. I've seen a few trainee's be so caught up in the moment making their first big cut and as the metal fell it dinged the the high pressure line and created a weak spot the bubbled out "twice". A simple oversight that could have been catastrophic. Quite a few of the tainers I had failed to stress hose management, like it was a given. For i'm just naturally organized with ever job I do, to the point of it being OCD. But there's many that easily overlook the importance of their surroundings especially when outside of controlled environments. Great video, Very Thorough and well explained.
Thanks I have a torch set up and a HF wire welder. I have to fab a bunch of plates to temporarily join metal horse stalls together for the fairgrounds where I work. I was planning on using a drill press to drill the holes I need in the plates.. now I will use my torch instead. Thanks now to find a welding tuber..
Yes a welding helmet with a big 4" x 5" inch clear plastic piece makes a great face protector. If your using a big grinder they tend to bounce off your face when they buck. I always see car mechanics cutting off bolts (RU-vid) and tell them it's good until the grinder hits you in the face.
You included good safety tips. But, when you were setting the oxy acet regulator pressures you had the torch tip pointed pretty much at your clothing. Some clothing is more prone to capture acet and/or oxy resulting in a potential fire hazard to the operator when you light the torch. However, given the time between you setting reg press and lighting the torch resulted in minimal risk for either gas to still be present on your clothing.
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
I am glad I watched your video because years ago in high school we were taught to bring our oxygen in to make a short flame. and when you test the torch the flame would change tremendously of course we always got them snaps and flame would die. And who said you could not teach an Old goat new tricks.
