Welder question

[tarafied1]

I borrowed a MIG that is 180 amp 220 volt. The guy I borrowed it from does not have shielded gas and is using flux core wire. I borrowed it to weld the frame up on the 65 as my 90 amp MIG wont make enough heat for the frame rails.
My question, should I try to weld with it as is or get regular wire and hook up my tank?
I've never wire welded with flux wire before. I really don't want to screw up the frame!
Thanks

 

[stangg]

Skip the flux core if you can... Flux core leaves voids in the welds. Some racing sanctioning bodies won't allow flux core welded roll bars because of that.

 

[70_Fastback]

Skip the flux core if you can... Flux core leaves voids in the welds. Some racing sanctioning bodies won't allow flux core welded roll bars because of that.

Agreed. Get a bottle and do it correct.

 

[tarafied1]

Okay. Thanks. The guy said I need to reverse the polarity to use gas. Any recommendations on wire size?

 

[cmayna]

 

[tarafied1]

Awesome
Thanks!!!

 

[SELLERSRODSHOP]

I use .030 in mine. you may have to change the liner too.

 

[cmayna]

I will say that I use .023-.025 for most of my welding, no matter how thick it is. I think this is similar to what Opentracker uses.

 

[Anonymous]

I will say that I use .023-.025 for most of my welding, no matter how thick it is. I think this is similar to what Opentracker uses.

Me three

 

[Fst Blk]

When I'm welding thick stuff, I move over to .030 also.

Bill

 

[70_Fastback]

I use pretty much .030 for everything. I'm just that awesome.


Sent from my iPhone using Tapatalk.

 

[tarafied1]

I have some .030" so I'll try that first. Maybe practice on some of te parts I cut off the car...

 

[Dennis Harrelson]

Some tech from Miller:
http://www.millerwelds.com/resources/articles/Proper-welding-wire-selection/

 

[Dennis Harrelson]

.....I guess I should've looked at the dates of your posts. Oh well, maybe it'll help next time.

 

[tarafied1]

I still haven't started yet so it's helpful!