Development of Additive Manufacturing of Ni-Based Alloys Used in Aerospace
YAKUT Project intends the acquisition of Selective Laser Melting, which is classified as a potential fabrication method of future in the group of additive manufacturing techniques, to the defense industry with an object to produce prototype components using Ni-based superalloys. The main concept of additive manufacturing is based on the stacking the layers of materials in the melted form of wire, powder or sheet. Additive manufacturing is considered as new industrial revolution of our time because of the advantages it provides such as high level of the freedom in design, weight and cost reduction.
The YAKUT Project, which was funded by the Presidency of Defense Industries (SSB), aims at acquisition of the Selective Laser Melting process as well as process modeling capability for manufacturing of functional parts that have advanced mechanical features and can operate under challenging conditions such as high pressure and temperature differences in aircraft engines. Within this scope, the integrated fabrication of combustion chamber that consists of 9 different parts involved in TEI TJ90 Turbojet engine has been successfully completed by utilizing the UNS N06625 Nickel alloy in powder form and obtained the required mechanical properties.