Mig welding question

   / Mig welding question #1  

handirifle

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Location
Central Coast of CA
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Massey Ferguson 1010
I have a small Campbell Hausfield 110v welder I have used about 20 years. It has done very well for me. I am pretty much self trained and can most of the time run good beads and get the penetration I need, for what I am doing. For settings, it only has hi-lo and 1-2 so hi-1 or hi-2 etc. I am using lincoln .035" flux core, like I usually do.

On this current project, I am making a T bar from 1" and 1.5" flat steel. I got the steel tacked up like I wanted, and started filling in the gaps. I worked about 45 min on filling in the gaps, still not done. What the issue is, is when I first started I would strike the arc and run about 1" bead to tack it in place. The when I started running about 4-5" beads to fill in the gap, it worked very well. Nice and smooth crackle sound, little splatter.

Then after about 15 of these (T bar is 10ft long) it popped off on overload. Ok duty cycle is what it is. When it kicked back on, it would not hold a steady bead. It would be more like bzzz stop bzzz stop, and so on, in rapid succession. It seemed like the wire would keep feeding but not welding. I hope I am getting the description right. Almost like I was doing rapid touch and lift. My technique was the same, same distance from tip to work, same speed. After that I tried varying the speed, the distance, heat settings, and nothing worked, consistently. Every once in a while it would run about a 1" bead the start all over again.

Is this me or the machine? This is not the first time I have run into this issue, I just have to put it down and go do other things to avoid the frustration.
 
   / Mig welding question #2  
I have never owned a CH 110 machine but it sure sound's like it has been a good one. After 20 years the duty cycle might not be what it once was. Is the fan working? Have you looked inside to see if dirt and lint need's blown out?
 
   / Mig welding question
  • Thread Starter
#3  
Do you mean where the spool goes or the actual working parts? The spool area, yes but not anywhere else. Never thought of that actually.
 
   / Mig welding question #4  
What's the flow rate on your gas? I assume you are outside, so what are the wind conditions? Sounds like the shielding gas is being blown away.
 
   / Mig welding question #5  
What's the flow rate on your gas? I assume you are outside, so what are the wind conditions? Sounds like the shielding gas is being blown away.

"Sounds like the shielding gas is being blown away"?
The OP states he is using flux core.
 
   / Mig welding question #6  
Not saying this will help your machine but I overworked my Lincoln SP100 one time and it quit working altogether. I took the cover off and cleaned all the dust and cobwebs out and it hasn't stopped since.
 
   / Mig welding question #7  
Might check your ground. Other than that it doesn't sound good for your machine.
 
   / Mig welding question #8  
Do you mean where the spool goes or the actual working parts? The spool area, yes but not anywhere else. Never thought of that actually.

Reason why is because dust and lint will insulate components from cooling which in turn cause's shorter duty cycle and worse still,shorten's machine life.
 
   / Mig welding question
  • Thread Starter
#9  
Ok will check connections inside. Had good ground on workpiece. Yes was flux core and working inside my shop so no wind either way. Will give it another go today and see if it still acts up. Will also pop it open and do a dust check.

Hopefully that is it.
 
   / Mig welding question #10  
Are you serious about the thickness of the material? Not a 110 v mig job. Have a Linc 210 mp, draw the line with the mig at 3/8. After that the stick is used with proper bevel prep.
 

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