Mill-turn machine designed for blade and blisk machining

摘要

The Starrag Group recently gave UK aerospace OEMs and top-tier suppliers an insight into the extent and depth of the company's ongoing development programme relating to improvements in aerofoil blade/blisk milling. Trials at Sheffield's Advanced Manufacturing Research Centre resulted in significant progress in blisk machining using the new NB-series machine, which can achieve material removal rates of 1,000cm~3/min. They also demonstrated: the 'adaptive milling' of fan blisks and forged compressor blades; chatter-free machining of thin-wall airofoils; cryogenic cooling; and the machining of nickel-based super-alloy and gamma titanium blades.