You don't go about trying to weld something in one pass,[sometimes you can] but thats not how a welder goes about making a weld.
Think that stuff about this machine can do this and this machine can do that was started by welding salesman,or fab shops working with fillit welds with flux core,or some other such thing.
You need to rate the machine you want to buy in amps/volts and duty cycle.
For instance,mig,steel,.035 wire, maybe 120 amps,you want a machine that will put out 120 amps at 80 percent or more duty cycle.
Stick,1/8 rod,steel, maybe 110-130 amps,so you want a machine to put out about 120 amps at 60 percent or more duty cycle.
Now if you want to run bigger filler,you will need a bigger machine,if you will be running smaller filler,than you might get by with less.
Thats how you go about buying a welding machine[as far as how many amps and duty cycle,not this silly thing that somebody said it can weld 1/2 inch in one pass.
Think that stuff about this machine can do this and this machine can do that was started by welding salesman,or fab shops working with fillit welds with flux core,or some other such thing.
You need to rate the machine you want to buy in amps/volts and duty cycle.
For instance,mig,steel,.035 wire, maybe 120 amps,you want a machine that will put out 120 amps at 80 percent or more duty cycle.
Stick,1/8 rod,steel, maybe 110-130 amps,so you want a machine to put out about 120 amps at 60 percent or more duty cycle.
Now if you want to run bigger filler,you will need a bigger machine,if you will be running smaller filler,than you might get by with less.
Thats how you go about buying a welding machine[as far as how many amps and duty cycle,not this silly thing that somebody said it can weld 1/2 inch in one pass.