Since assist gas is a significant expense due to bulk nitrogen costs, Mitsubishi Laser has focused its efforts on advanced gas-reduction technologies, including AGR-N2 (100-percent oxide-free processing while saving up to 75 percent on nitrogen assist gas consumption) and AGR-AIR (extremely cost-effective, 100-percent air cutting), in addition to AGR-MIX.
“These technologies can help decrease nitrogen consumption and make a big dent in the overall annual cost of running a laser,” Conroy said.
The AGR-MIX nozzle is uniquely structured: Nitrogen is funneled to the center of the nozzle in an air shroud, while a separate chamber funnels some of that air into the nitrogen stream. This produces a mix gas that is made up of about 95 percent nitrogen and 5 percent oxygen.
Mitsubishi Laser customers who have been using the new AGR-MIX technology are reporting high-volume processing with perfect stability and excellent cut quality, Conroy said.
There is an additional bonus—the wider kerf that mix gas provides makes removing parts (especially thick parts) from skeletons easier.