I used TIG process to weld some stuff last night, and noticed a lot of
warping. My TIG welder can do pulsed current. I think that using
pulsing can reduce heat input. What would be sensible pulse settings
to do that.
Another question, I will be tig welding some 1/8" thick steel
angles. (I need to make a holder assembly for all those numerous
cables and hoses) What would be a good amperage to set. I figure that
about 120-130 amps should be good.
I like the 60hertz pulse setting as you have a more fluid puddle (Miller
150STH-It is funny hearing 60hz from a dc unit). I like to dip so I
haven't found too many uses for the other pulse rates except for thin
stuff. I'd imagine someone could teach/explain to me how to use the
lower pulse settings (.5,1.2.5hz) more effectively but I do well with
60hz. Any comments would be welcome if this isn't seen as a thread
Look for old posts with Ernie's rules of thumb. They baseline at 1amp
per thousandth of an inch.
Ernie Leimkuhler Apr 24 2003, 2:11 pm show options
OK this is one of my major gripes with the welding world.
Everybody wants to sell you a pulser for your TIG, but nobody wants to
tell you how to use it.
Here are some basic settings to start with
Pulses per Second 1.2 - 2.0
Background Amperage 40%
Peak time 40%
Remember that when using a pulser, you will set your machine slightly
higher, since you are not maintaining a constant arc.
The pulse frequency or 1.2 - 2 pps allows you to add filler on every
You can go to a higher pulse frequency and simply add filler every
second or third pulse.
Running in the very high frequencies on the pulse makes for a more
liquid weld, especially on SS and aluminum.
The pulser should work just as well on AC as it does on DC.
Obviously you have a huge range of settings to play with.
Have fun, do many test welds and take notes on settings that worked
particularly well on certain combinations of material and assembly.
For more settings for the pulser you can go to this site.
and this site
The range of settings can be a bit bewildering but you have to find
what works for you.
"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.
Think of it as having your older brother knock the shit out of you
for torturing the cat." Gunner