Feedability of MIG wire 2

[Laishetti]

We are trying to improve feedability of welding wire for robotic applications, what are the ways to improve good feedability?
copper coating, adding low ionization potential elements in coating etc.... what can be done?

 

[kingnero]

Use good quality liners
Avoid bends in the wire feed. Even better, keep the wire feed as short as possible.
Use decent drive roll systems
Make sure your welding parameters are spot on. Spatter on the contact tip instantly blocks the feeding motion. If the wire kinks at that time, you're fucked. Same with your starting parameters.
...

 

[DekDee]

Kingnero has given good advice.
Couple of others come to mind.
Good coverage of the spool while installed on machine - stop airborne contaminants settling on the wire.
Correct tension on the rollers is critical - too loose and wire will "slip" and not feed correctly - too tight and the wire will be "squashed" out of roundness and will not feed correctly.
Hope that helps.

 

[Laishetti]

Thankyou DekDee and Kingnero you both are correct and thankyou for the suggestions here we are maintaining all these protocols but i would like to work on coating of wire good arc stability for better feedability in case robotic applications.

 

[kingnero]

Have you spoken to wire manufacturers? Some offer wire espacially made for robotic applications. I don't know what's specific in that case, though (other than the 200 kg drums).
Please share your feedback in case you find something that reduces friction and does not impede the weld quality.

 

[IFRs]

We have had good luck with push-pull systems and oversized Teflon liners

 

[IFRs]

I second the notion of oversized Teflon liners