Modern Machine Shop

NOV 2017

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

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26 MMS November 2017 RAPID TRAVERSE Machining Technology in Brief off to the side. As the sleeve glides across the material during fusion cutting (without marring the surface), the nozzle remains 0.06 inch from the sheet surface. This is said to ensure that the noz zle can ef for tlessly withstand any spatter generated during piercing, which accelerates piercing time and minimizes the risk of damage to the nozzle. The Highspeed version uses 40 percent less nitrogen on average; the Highspeed Eco 70 per- cent less. Plus, the piercing process for both is faster, and laser power does not need to be increased. These nozzles enable an 8-kW laser to fusion-cut mild steel sheets as thick as 0.5 inch, compared to the 0.4 inch achievable in the past. The company says whereas t ypical fusion cutting of 0.25-inch mild steel with an 8-kW laser using nitrogen can be performed at a linear feed rate of 216 ipm, the Highspeed Eco can achieve The Highspeed Eco nozzle uses a sleeve that creates a seal between the nozzle and sheet surface to direct the nitrogen gas directly into the kerf. The Highspeed Eco nozzle is said to reduce gas con- sumption by as much as 70 percent. 350 ipm at roughly half the required gas pressure. The Highspeed and Highspeed Eco nozzles can also be used for fusion cutting using nitrogen of stainless steel sheets ranging in thickness from 0.16 to 1 inch. Additionally, only one nozzle is needed for the entire material-thickness range in mild steel and stainless steel, which makes mix- ups less likely and shortens setup times. Both nozzles are currently available on new TruLaser Series 5000 machines with an 8-kW solid-state laser, but will soon be available for use with 6-kW solid-state lasers. The Highspeed process is available on the TruLaser Series 3000 fitted with a six-kW solid-state laser. Relatively new TruLaser Series 5000 machines with an 8-kW solid-state laser can be retrofitted with the High- speed Eco nozzle. Trumpf Inc., call 860-255-6000 or visit GE Leverages Additive Blade Repair into Efficiency Improvement BY PE TE R Z E LI N S K I G E is perhaps the major manufacturing com- p a ny m o s t c l o s e l y a s s o c i ate d w i th th e advance of additive manufacturing (AM). The company's fuel noz zle for its Leap jet engine remains a leading AM success story. However, one noteworthy achievement related to AM came because of an acquisition. GE is the first produc- tion user of Hamuel's additive and subtractive

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