A team of scientists from the International Advanced Research Centre for Powder Metallurgy & New Materials (ARCI) indigenously developed powders suitable for additive manufacturing using inert gas atomiser available at the ARCI by melting unused scrap material. Utilising this, the ARCI is developing the Laser-DED process for the repair of aero-engine components made of Nibased superalloy, a release said.
Indian scientists have, for the first time, repaired aero-engine components through emerging additive manufacturing or 3D printing technique called ‘Directed Energy Deposition’ process that can significantly reduce repair costs and overhaul time.
The scientists indigenously prepared the powders suitable for the additive manufacturing process. Ni-based superalloys are widely used in aero-engine components, but despite having exceptional properties, are prone to damage due to extreme operational conditions. Manufacturing defects during the casting or machining process are another major cause of rejection, and tons of such unused components are scrapped due to minor defects.