try using 2000watts at 1800 fr. with 70 % duty cycle at 180 IPM. I can't guarentee that your lens won't burn up after a few hours of this, but it works short term.
We have a 2000Watt CO2 laser and have been asked to try and cut tantalum. I don't know what specifications the metal will be (IE: thickness or shape). Given what little information I have, does anyone know what type of cutting conditions I could try? What assist gasses work best? Cutting speeds...
Tantalum is almost completely immune to chemical attack at temperatures below 150C, and is attacked only by hydrofluoric acid, acidic solutions containing the fluoride ion, and free sulfur trioxide. Alkalis attack it only slowly.
