stick polarity

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lotechman

2,774 posts · Joined 2004

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#2 · Nov 24, 2006

On AC there is no arc blow. I like '13 on straight polarity, electrode negative. it seems to run slightly smoother than reverse.

 

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tapwelder

6,482 posts · Joined 2005

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#3 · Nov 24, 2006 (Edited)

I use straight polarity for 6013, also. I have a little Thermal Dynamic Dragster 90 amp inverter. There is a noticeable difference between that straight and reverse polarity. I guess because I am usually welding at the top end.

I works well on AC. I use it quite a bit in the shop.

 

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Snidley

141 posts · Joined 2004

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#4 · Nov 27, 2006

6013 can be run on DC + or -.

DC + will give you a little more penetration.
DC- will give you a little more smoother weld and more disposition.

It works well on either polarity.

 

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pulser

1,707 posts · Joined 2005

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#5 · Nov 27, 2006

In theory, electrode negative DCEN should result in the lowest penetration, best for thin stuff. AC would be a little deeper, and DCEP the deepest.