Copper is used as a reflector in CO2 lasers. Most materials will absorb CO2 emissons. A 60 Watt CO2 laser would blow holes through the fiberglass in a heart beat. Generally you will use a focusing lense to narrow the beam and intensify it. with a 2.5 inch focal length you would probably get a .003 - .004 spot size. A 100 Watt CO2 cut .025" mild steel @ 130ipm using a 40psi O2 assist Cutting FR4 with 60 Watts, probably 40 ipm using 50-60 psi of air assist As to fume extraction. Generally the cabinet will have something similiar to a dryer hose that is vented externally. in some cases special filters are used when cutting certain materials. Cutting PVC - gets you HCI Hydrochloric Acid Cutting Kevlar - gets you cyanide
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Re: Any info about this technique?
2006-11-16 by john80014