s/s cutting 8MM on a prima with a 2.5kw slab laser

[bobdyson]

any ideas on cutting 8MM s/s on a prima platino with a 2.5kw rofin slab laser. i just cant get rid of all the dross 6MM & 10MM ok but 8MM is very inconsistant ive tried the focus & various other settings even doctoring the 10MM peramiters but still struggling any help would be great
thanks steve@nfelasers.co.uk

 

[sarinjk]

keep your focal point at the bottom surface or 1 mm below the material and use the 10mm gas param to start with. whats your focal lens. nozzle dia

Sarin

 

[msandoval]

Drop your focus between 1/2 to 2/3 material thickness. Use a 7.5" Focus Lens, a 3.0 mm Single nozzle, cutting nozzle gap of 0.012" or closer (if machine allows), use about 14 to 15 Kg of pressure.

Remember that the deeper your focus, the slower the speed. Usually Rule of Thumb for Clean Cutting Materials is focus negative 1/2 to 2/3 material thickness.

Good Luck

msandoval