- Welcome to Weld.com.
I'm Bob Moffatt, I want to do a little session here
on different methods of Arc Starting.
Everlast came out with a new machine here,
it's a Power Arc 161 STH.
And it has a new feature on it called Live Arc,
a little bit different then what we're commonly
used to for manual touch start with a gas valve
and high freq starting, all that kind of stuff.
So I want to demonstrate this little method here,
again a little bit different than what
we're probably used to.
This machine features three starts.
Live Arc, I think all of us is used to Lift Arc
where we depress a contactor touch
the tungsten to the material to initiate the Arc
open the gas valve manually.
Then of course our old favorite High Freq Start either
with a foot pedal or a finger switch.
This machine has the capability to go into Live Arc.
This means that the tungsten is electrically
charged all the time.
The difference is and you may be wondering if you
see this TIG torch over here
it does not have a gas valve on it.
And the tungsten is electrically hot all of the time
so you need to be careful with that.
Tungsten is electrically hot.
If you touch it to a grounded piece
it's going to get an Arc.
Guess what else happens?
The machine senses that its grounding out
and going to initiate an Arc the gas automatically comes on.
So that in its self is a really cool little feature.
I'm going to do a little test run here first time.
We're going to do 100 amps, Carbon Steel, Live Arc,
five seconds of Post Flow, real simple setup.
Multiple methods of initiating an Arc,
remember this is electrically hot all the time.
My tungsten is sticking out here about a quarter of an inch.
Personally I kind of like to rest the cup down,
rock it down into the material and lift it back up.
You can come down here and scratch this or just touch
it in a sweeping motion.
However it may try to kind of stick a little bit.
I'll do a couple of each and see how we get going on this,
first time for me to run this machine so bear with me.
So again I rest the edge of the cup down on the material.
Rocked it down while the cup was touching the material
and initiated the Arc.
Brought my tungsten up to the angle that I wanted,
now to terminate the Arc I just lift out of it.
Just snap out of it.
And that's kind of the only way,
it starts immediately the gas comes on immediately.
Again I'm not touching any of the finger tip
controls up here at all.
Live Arc, electrically hot tungsten,
those are two start methods of the way that I like to it
just touching the cup.
Now we'll see what happens when we just come down
and kind of use a sweeping motion.
I should be able to come down and just touch it
and initiate the Arc.
I may have to hang on to the material here
so it doesn't stick I don't know here.
A little bit of a stick there.
I think that was not bad.
It's not like the tungsten hard welded
itself into the material.
Okay we did two runs here of a method of striking an Arc,
where we gently rest the cup down on the material
and rocked the tungsten down in here and
got this Arc started.
I'm comfortable with that.
I've used it a lot over the years.
These two runs over here we did kind of a sweeping motion
and yeah, the tungsten stuck but it wasn't bad.
Practicing that I could probably get a little better at it.
It's not like the tungsten is going to weld itself
hard stick right into the material.
It's just a gentle stick and you lift it up
and initiate the Arc.
Need to talk about these spots over here,
when we terminate the Arc when we're welding
it's like we got to break it out.
So you get a Arc jump over here,
I could play around with this
and see if I snap it out of there quicker
or somehow to alleviate these spots.
All they are is Arc marks not that big of a deal.
Quick, this machine started very quick
when we did our Arc initiation regardless of what method.
It just came up to the 100 amps and gas was flowing.
So quick responsive Arc start,
steady machine, capable of DC stick welding,
TIG, 2T, 4T, Pedal control,
and three different type of Arc Starts.
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