vtec_lude

I've just got a few questions.

The first pass I get a nice shiny weld and looks pretty good. I wanted to make another pass but the welds turn out undefined and grey, almost like a mig weld.

The first pass I use 60amps with 10lpm gas flow. I haven't got a pedal so I pretty much do a few welds and wait for it to cool before I continue.

On the second Pass I find I need to use more heat so I bump it up to about 90amps with the gas flow on 15lpm.

This is all on sch10 316l stainless pipe.

Any advice would be much appreciated.

thanks

Smith-02

youre cleaning your ---- between passes right?

1 Lpm = 0.03532 cfm

10lpm = .3cfm..

stop being so stingy with argon and just crank that up to like.. 50lpm, unless the conversion is wrong.

vtec_lude

Ok I'll bump it up and see what happens. Argon is really expensive over here in the UK... everything is...

Toysrme

10-20 CF/H (good general argon flow rate) =
4.7-9.4 liter/minute