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I am butt-welding 430FR stainless to 302 stainless tubes together. I am having a somewhat hard time keeping them concenctric and without a gap during welding. My current fixture is holding them concentric on the inside but often gaps during welding is a problem. I have been thinking of an...

Any one know a good combination of shield gases for CO2 laser welding that can help with weld spatter and minimize the effect of plasma. thanks

anyone know where I can receive some laser welding courses or training for CO2 lasers? thx

I am welding on the outside of a tube, with a 90 degree presentation relative to the lase beam, with a max Outside Diameter(OD) 0.377 After weld, the allowable weld OD is 0.386 From the settings, how can duty cycle, Frequency, power help me hold the tolerance. There is also RPM, Start and stop...