Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
tweake
  • Posts:
  • Joined:
    Mon Dec 18, 2017 4:53 am
  • Location:
    New Zealand

i am doing a few 304/316 bits at the mo.
mostly 1.6mm wall tube. my new welder has a lot more adjustment for pulse which is taking a bit to get my head around.
my old one i used a high pulse setting (no idea what it is) which made it easier to control amps.

i tried the 1.4pps/hz, 85 amps max, 20 amps base, 45% duty (on time). that ended up like a bunch of tacks. maybe travel speed was to high?
i've been running 100pps/hz, 100 amps max, 45 amps base, 45% duty. that works well, nice focus, narrower bead but lacking in penetration.
unfortunately run out of gas before i could try higher amps.

doesn't help we are in lockdown at the mo, so not sure if i can get more gas any time soon.
tweak it until it breaks
cj737
  • Posts:
  • Joined:
    Thu Sep 29, 2016 8:59 am

I have had good results with 85amps, 50% on time, 25% background, 1.2 pps. You may need more amps depending upon filler wire size. If you have good coverage and a purge, there’s no harm in 2 pulse cycles before you advance. The short duration of peak amperage prevents overheating the material.

When autogenous welding, I hit high and quick, very low background, and super slow on PPS. Gives great penetration, and keeps the material cool enough because of arc cycles.
tweake
  • Posts:
  • Joined:
    Mon Dec 18, 2017 4:53 am
  • Location:
    New Zealand

update.
thanks to coldman for his settings, tho i found them a bit cold (bad pun intended). i added 10 amps and its rocking.
(probably my machine).
cranking out the parts today, my god i need more practice.
i got the bandsaw running really well and fit up is good. that makes a HUGE difference.

i'm running 0n 1.6mm 304/316
Pulse 2.5pps
Peak Amps 70
On time 50%
Background current 30 amps
Electrode 3/32"
jazzy 10 cup.
tweak it until it breaks
Post Reply