[AT] welding problems

Cecil Bearden crbearden at copper.net
Sun Nov 15 17:45:36 PST 2009


  I quit using 7000 series rod years ago.  It just ran too much bead for 
my liking.  I have never had anything break with the 6011 or 6013 rod. 
In fact I weld sheet metal with 6013 1/16 rod, and get a good looking weld.
Cecil in OKla

John Wilkens wrote:
> Are you using AC 7018 rod?  Just a guess.  My old AC welder does very 
> good with the 7018 AC rod but not so good with the common 7018 DC rod.  John W.
> 
> 
> 
> At 05:29 AM 11/15/2009, you wrote:
>> OK stick welding experts, got one for you. The welder we have is a 40+ year
>> old Marquette, bought new for use here on the farm. I had to buy some more
>> welding rods over the past several months and unfortunately had to switch
>> brands. We had always used Hobart (or possibly Lincoln) rods. The welding
>> supply chain now only sells Hyundai rods in small quantities (10 lb) boxes.
>> I can't justify buying 50lbs of Hobart rods.
>>  Anyway, on to my problem. I picked up a new box of 1/8" 7018 rods to do
>> some repair on my subsoiler. I set the welder as high as it would go (180)
>> and could not get it to weld. All I could get was a couple of arcs and
>> sometimes the rod would stick.  Before you ask, yes I cleaned where I was
>> welding, cleaned the ground area, made sure the terminals on the welder were
>> clean, and even cut off and reinstalled the end of the ground cable where it
>> goes into the clamp. I also tried grounding and welding on 3 different
>> pieces--all of varying size and thickness.  I resorted to using 3/32 rods
>> with the welder set on 125. It would run those rods so hot that they would
>> almost turn red before it was time to switch. I know I have used 1/8" 7014
>> before, so my question is this--Is there a difference between 7014 and 7018
>> that makes the 7018 require a higher setting on the welder, Is there
>> something wrong with the welder, or is it something to do with these
>> imported rods?
>>
>> John Hall
>>
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> 
>                     In the wide-open spaces of NE Oregon
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