Cutting Steel With a Welder!

About: I'm16 and in my free time I control cockroaches, weld, make canoes from duct tape, 3D print, make helmets, light big pieces of wood on fire, and other awesome stuff

So you get a welder and some steel, you draw out a diagram of what you want to weld...... Now what? you realize that you don't have an oxy-acetylene torch nor a plasma cutter and can't cut solid steel with tin snips. But wait! If you buy some inexpensive 6011 rods you can cut through steel!

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: WARNING!

This process uses high voltages and produces sparks, fumes and bright arc flash. It should never be attempted by anyone without proper safety equipment and ventilation. If you have an adjustable welding helmet turn it to 11-12.

Step 2: Cutting

Take a 6011 (or 6013) rod and set your welder on 125-135. Once you initiate the arc you will notice that none of the rod creates a weld. To cut the metal you will need to push the rod down into the steel and keep the tip of the rod flush with the other side. The arc should stay lit and cut a path as you move the stick. That's it!

Metal Contest 2016

Participated in the
Metal Contest 2016

Makerspace Contest

Participated in the
Makerspace Contest

Beyond the Comfort Zone Contest

Participated in the
Beyond the Comfort Zone Contest

Be the First to Share

    Recommendations

    • Made with Math Contest

      Made with Math Contest
    • Cardboard Speed Challenge

      Cardboard Speed Challenge
    • Multi-Discipline Contest

      Multi-Discipline Contest

    10 Discussions

    None
    bravoechonovember1

    3 years ago

    I've entered this in a few contests so vote if you like it!

    None
    Left-field Designs

    3 years ago

    Here in Ireland there is a company that produces peat from bogs. They have a reputation as being rough with equipment and this trick is a favourite with their fitters. Their motto is "burn your way in, weld your way out..."

    1 reply
    None
    Looken4

    3 years ago

    If im not mistaken cant you buy rod designed for cutting? other than air-arc rod that is. Im sure they are expensive though.
    The beauty of using 6011 is its so cheep and available, any old or damaged rod will work.
    Oh yes i remember now the cutting rods are also somtimes referred "blow rods" slang term i think.
    Great instructable.
    Id forgotten about this technique

    1 reply
    None
    Lorddrake

    3 years ago

    I have not done any stick welding so I don't know much about it. Is the reason that this setup cuts the steel instead of welding because of the current selection, the stick material, a combination of both, or some other reason?

    3 replies
    None
    bravoechonovember1Lorddrake

    Reply 3 years ago

    a combination of the two; 6011 is a high penetration rod and usually you set it on 90 amps so the voltage makes it cut but you couldn't do this with 7018 or other rods

    None
    Kinkhossbravoechonovember1

    Reply 3 years ago

    This does work with 7018 if you know how to watch the puddle and know when to push it through

    None
    quartz1452Kinkhoss

    Reply 3 years ago

    right, many rod works fine only need to crank up current as per thickness.

    None
    Carpenter Guy

    3 years ago

    Hopefully more people enter, or you might just get all the prizes! :-)