Tig Welding Pulse Settings – High Speed Pulse Welding Vs Slow
Tig Welding with pulse is not what it used to be.
Old School tig welding machines were only capable of pulsing at around 10 pulses per second (10 pps).
Newer inverter tig welding machines are capable of pulsing at rates up to 5000 pps.
For me, its not so much a question of what is better as it is a question of what can I tolerate.
I absolutely hate pulse rates of between 2 and 20 pps and prefer to either weld using 1 pps or greater than 30 pps.
Pulse tig rates of 2-10 pps are just plain annoying. It is hard to focus on the arc and because of that, any benefit from reduced heat input due to the pulse rate can be lost from wasting time trying to focus on the arc.
Pulse rates of over 30 overcome that obstacle and still reduce heat input by agitating the puddle and letting it flow at a lower overall amperage.
That reduces heat input.
When the tig welding machine is set to around 30 pps, the % on time is also set to 30 and the background current is set to 30, there is a noticeable change in the tig welding arc.
It is easy to see, but the arc flutters enough to allow it to flow at low amperage.
The arc is focused enough to allow for welding near an edge.
The puddle stays where you direct it and does not continue to heat up and increase in size like it does if you are not paying attention welding without pulse.
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