Welding Basics for Beginners

Hi I'm Steve Christena from Arc Academy.
Arc Academy is a small beginner and entry-level welding school here in
Chicago, Illinois. And what we do is we teach beginners how to weld, but
everybody that comes through our door usually doesn't have any idea what
welding actually is which is the liquification of a base metal with heat
and then they fuse together and there's three most common systems that do this:
MIG, stick, and TIG. And what we're gonna do before we jump in is have a review of
all three of these processes.

Before we get started let's talk about the common
characteristics of each process okay so in welding you have three basic elements.
You have your heat source, your filler metal, and then your shielding gas or
your flux. So let's talk about MIG welding. MIG welding the filler metal is
your electrode and it's on a spool of wire and it is also a shielding gas
process, so the advantages to this is it's going to be much easier to learn
because you preset all your your parameters, it's gonna be much cleaner
because you don't have any kind of slag process and you could hit a wide variety
of metal thicknesses. So if you're in a garage, in your shop that is a great
process to use. Stick welding because it is a flux based process works awesome
outside, wind doesn't affect it as much and it can also work on thicker metals
really well.

Another advantage of it is if your metal is dirty, if you're working
on farm equipment or on a gate or even in your driveway, rust and debris don't
affect it as much as the other processes. A few of the disadvantages of stick
welding is you're gonna have a lot of spatter, a lot of vapor, off gassing, and
fumes so it's not something you want to do indoors too much. Another thing is if
you're working on automotive frame mounts it's not the prettiest or
cleanest weld.

Usually when you're working on some sort of frame you're
either going to pick MIG or TIG. So some of the advantages of TIG welding is
you're gonna get the highest quality weld it's also gonna be aesthetically
more pleasing it's a pretty bead and it also works great on thinner
metals, but the only problem is it's very difficult to control because you're
controlling all three of your elements in process. Your leg is controlling your
heat, your opposite hand is typically controlling your filler metal deposition
rate, and then of course you have a non consumable tungsten electrode that is
creating your arc as you move through the bead. This is considerably slower
process as well so usually when you're working on TIG welding you're gonna be
working on stuff like a frame for a motorcycle, automotive sheet metal,
something in that regard.

Arc Academy

We've highlighted the advantages of each
welding process, now we got to talk about what you're gonna do. All of my students
that come up to me that they're about to buy a welder they ask me which one
should I get. Well it really depends on what you're gonna be doing most, if you
are outdoors working on farm equipment you're typically gonna go with a stick
welder, thick metal welding, dirtier material.

If you're working on thin
metals, HVAC, if you're doing frame outs, go with a TIG welding process. If you
want a wider range and you're gonna be working indoors, MIG welding is probably
what you're gonna want. Now let's get a little bit more specific about what
metals you can use for each process. MIG will typically have the ability to weld
steel, stainless steel, and aluminum alloys. Stick has the ability to weld on
steel, stainless steel, and cast iron.

Whereas TIG pretty much runs the gamut.
You can weld on any metals that conduct electricity, steel, stainless steel,
aluminum, copper, brass, chromoly, and exotic metals such as magnesium, and
titanium. We hope you enjoyed this video and you got a lot out of it. We highly
encourage you to move on and watch the rest of the videos in this series. We
break down purchasing a welder based on your needs. If you're looking for more
educational videos go to ArcAcademy.com. We have an entire library of
learning tutorial videos where you can grow your knowledge of welding..

As found on YouTube

Leave a Reply