I have little problem. I've read that in some cases when welding rollcage, the only right way to go is to pulse weld it. But problem is that i havent found anywhere any parameters. How many Hz's and what upper and lover amperage. Material is 4130. 40x2mm
Without pulse i would go around 60-80A.
My welder is Cea Matrix 250AC/DC
(sorry if there are some grammar mistakes)