Porous welds with Gasless wire

[bearmatt]

Hi, Im using a BOSS (Weldmate) P170P with flux cored wire (gasless). I often change between gas and gasless depending on location and material.

Lately I'm repeatedly getting porous welds with my gasless wire on std mild steel.

I Have triple-checked all the obvious things (polarity, wire, tip, etc) but still cant figure out if its me or the welder ?

Any help would be much appreciated.

Thanks, Matt

 

[swampthing]

Porous welds

Mate, im not sure of the exact answer but it could be related to wire feed and you amp settings.

Eg. To little wire for the amp setting may affect the abilty of the flux to do its job. Im only guessing at this though but it may be worth a looking at.

I would to do some tests at various settings and document them as you go. When you find a weld that isnt porous check you figures and you may find you answer.

Brett

 

[bearmatt]

Good suggestion re the test, it may provide some answers. Thanks