Thanks to all for your suggestions. I tried 7018 rod and weaving, etc. I made a few slices of that weld and did some destructive testing on one.
Pictures of my corner welds (after following your suggestions)
Oct 17, 2005
4 Replies
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iHi there,
I am having the ame problem as you have described. I tried 6013, 7014, and 6011. It looks OK but bubble gum is stronger.
I am running between 80 and 100 Amps. I 'feel' that I need more Amps because I am just 'hot glueing' melted steel and not penetrating.both pieces.
Are you running electrode + or -?
I am running DCEN. Like for you, it was complete s*it with 6013. 7018 seemed to work better. I am basically a complete newbie to welding, so value my words appropriately.
i
Well first of all you should be running E7018 on reverse polarity (DCEP).
I have used E7018 on straight polarity for running a root pass on pressure pipe!. But for the most part E7018 is always used on reverse polarity!
A good rule of thumb for current setting is to take the decimal equivalent of the size of rod and set the amps to that decimal setting. ie: 1/8 E7018 = .125 of an inch, start at 125 amps and adjust from there. Same goes for 5/32 E7018, ......5/23 = .15625 of an inch so start at 160 amps and adjust from there. All welding machines are a little different so this formula is only a basis for setting the heat.
Gary
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