Foot brake make it convenient drive when you are driving .By the same way, when we operate welding
with two hands,Foot pedal control current is also very convenient.
So after watching a youtube video of a guy was welding car parts using a foot pedal several years ago,
I thought I might learn something if I gave it a shot.
Quick Tips from the video
· use a very short tungsten stickout
· set amps to one amp per thousandths plus 10%
· use 1/16" (1.6mm) filler
· prop the cup directly on the joint
· press pedal to floor,
· add filler, release pedal about 3/4, move torch ahead
amperage for manual pulse TIG welding
First, if you are going to pulse using the foot pedal, you need to set the amperage right.
For carbon steel, you can start with the"one amp per one thousands of an inch rule"or ( 40 amps
per one mm).
But on some joints (especially on thicknesses above .100" or 2.3mm), it helps to add about 10 percent
So I set my amperage to 150 -160 for the .140" wall thickness pipe when I was welding
filler rod type and size
The pipe being welded is standard schedule 40 carbon steel pipe.
er70s2 is the cheapest and best all around filler for carbon steels.
Sometimes, when you are welding something that will be fully penetrated, er70s6 works better.
I will go deeper into tig welding pulse settings in future videos but for now, let me just say that pulsing
makes a little bit of difference.
but only a little.
The reason I say that is because I was lucky enough to work for a company that upgraded from Miller
Syncrowave 250 tig welders to Miller dynasty 200 dx units.
The quality of work did not skyrocket.
Here is what happened...
The welders who were already above average, improved a bit more using the pulse settings offered on
the Dynasty welders...especially for tig welding on very thin edges.
Those who were only average welders, remained the same....pulse or no pulse.
So while I personally find some advantages of pulse tig, I am quick to admit there is hardly anything
that can be welded using pulse, that cant also be welded without pulse.
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