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Licolnd weldpak 100

2K views 3 replies 4 participants last post by  mnmstoy 
#1 ·
I went and borrow a licoln weldpak 100 from a friend of mine earlier so that I could weld the sheetmetal for my half doors that I am building. Well it has been about 4 yrs since I have welded anything and when I learned how to weld it was with a 220 Miller mig welder with argon. So this is a big step down from that. Anyways when I first started it was just burning holes through the metal so I turned it all the way down and I turn the wire speed down. It was still burning holes in it so then I turned the wire speed up some so that I could move faster. That did better for a while then it started burning holes again and also the damn thing pops and sputter a lot so I cant ever get a good weld. I dont need anything real strong it is just holding sheet metal. Anyways is there a trick to this? It seems like I would start getting better and then all of a sudden it was burning holes in it again.
 
#2 ·
It's probably mostly the flux core wire. It burns hotter than regular solid core mig wire. The flux core wire will also have a lot of splatter.

The popping and sputtering could be caused by a worn or wrong sized contact tip. If it has a lot of slop it wont make good contact with the wire all the time. You should be able to find tips for it at lowe's, home depot, or a welding shop.

I dont know if it even exists, but you might try to find a smaller diameter wire. (I'm assuming you're using .035) It wont burn quite as hot since it takes less heat to melt it.
 
#3 ·
Also with it being thin sheet metal, weld an inch, skip agout 5-6 inches and weld another inch, repeat. This helps keep the sheet metal from getting too hot, because that's when you burning holes.
 
#4 ·
Mitch said:
Also with it being thin sheet metal, weld an inch, skip agout 5-6 inches and weld another inch, repeat. This helps keep the sheet metal from getting too hot, because that's when you burning holes.
my stuff must of been really thin. All i could get was a spot weld on my half doors. I used the chicago 90a flux core welder set on low and speed about 1/3 up. of course it was the filling cabinet that was thin...so I guess that would work.
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On the door itself I left a inch to fold to a 90 degree (vise grips) to lay the sheet metal on to weld it. I used 1 in square tubing I got from work to make a frame for the inside of the door. Not alot of work in Progress pics but. I think you would get the idea.
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If I could re do it. I wouldn't make it so square... with the flat sheet metal laying on the 90 degree turn on the doors a more curved shape would of looked better. IMHO.
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I kept the driverside mirror to keep it street legal. that is a pic not finished.
Anyway, I may have got carried away...when you were talking about welding and not fabing.
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doors completed.
Sorry,
Mike
 
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