welder machine for aluminium welding robotic process, MIG or TIG

[Krzysztof]

hello everybody,
Does anyone have an experience with aluminium welding process with robots and can recommend any welder for aluminium which has an interface for robots? Have You ever seen TIG welders working with robots and making good joints (welds)? DOes anyone can tell me which welder is better: TIG or MIG? I want to weld joints on 2-4mm width aluminium shapes

[gondorp]

I've tried Mig on aluminum, and failed.  I used a fanuc robot 100ib with arclink.  I used the aluminum weld process, which was pulse on pulse.  It looked really good, but it was way too unconsistant and it would burning through once and a while.  I can get you the documents on how to do this if your interested.