Kemppi Weld Assist

[Officer Dibble]

We've just got ourselves a Kemppi MasterMIG 355 and have been playing with the weld assist function and a question arises, if I am doing a butt weld which needs a number of runs to fill up the joint, do I just set the weld assist programme at the nominal plate thickness and not worry that it is thinner at the bottom of the groove, or do I tell it the plate is thinner when I am at the bottom of the joint and increase the plate thickness setting as the weld is filled up.
I'm interested to know how clever, or not, the programme is.

 

[Mark 2]

How thick is the plate?

 

[Munkul]

The programs are always just a starting point, your experience should tell you what to do.

Open butt root is usually short-circuit amps on steel, and fill/cap usually spray amps, so if there's a single setting for Vee butt position, then it's probably not going to work all that well in my experience.