okay i havent been to school or anything so i only know from hands on , i havent been welding but about a year but i have always wanted to know, from all the big dawg welders in here.

how do you know what your settings need to be on a mig welder when changing from metal to metal?

i have just always used a little trial and error method and have some settings saved to memory but how do yo know what gas psi to use, wire feed, and heat range.

i am going to school in the fall to actually learn how to weld but i was just wondering this before i got there.

thanks

 

ttt

 

bump

 

dang guys i know someone in here has to know this.

i am just curious, as to help me accomplish some better beads

 

practice on a piece of scrap my man of the same thickness and buttment you will use.

.

 

anybody else with some proper answers?

 

That is the right answer. Unless you know for sure what amperage and feed to use you should test on a piece of scrap first.

Settings vary for a bunch of different reasons: machine, material (thickness and type), gun angle and direction of travel, etc. There is no 'one size fits all' setting for mig.


Modified by backpurge at 9:54 PM 3/14/2005

 

A lot of small mig welding machines have basic settings listed on the inside panel of the machine where the wire feed is located. I know the Miller I have has the specs for different gauges located there.