Metal 3D printing using laser technology and metallic powders has become an advanced manufacturing technique that contributes to the development of the aviation industry. It enables the production of complex aircraft engine components with high precision and designs that are difficult to achieve using traditional manufacturing methods. This technology relies on building parts layer by layer from a digital 3D model, giving engineers greater flexibility in component design and performance optimization. The manufacturing process begins by converting an engineering design into a digital model divided into thin layers. Fine metallic powders, such as titanium and nickel alloys, are then spread inside a specialized machine. A laser selectively melts or fuses the powder along predefined paths, bonding the material to form a solid layer. This process is repeated gradually until the required component is completed, with manufacturing conditions carefully controlled to ensure component quality. This technology can produce complex internal channels that help cool engine components, reduce the weight of certain parts, and minimize material waste compared with some traditional manufacturing methods. It can also reduce the number of separate components by integrating multiple functions into a single part, contributing to improved efficiency and simplified assembly processes. However, manufacturing engine components using this method requires precise inspections and mechanical and thermal testing, as well as heat treatment and finishing when necessary, to ensure that the components meet safety and reliability requirements. Metal 3D printing represents an important step in the development of aircraft engines, combining design precision with advanced manufacturing and opening new possibilities for producing lighter, more complex, and more efficient components. Assist. Lecturer Al-Boraq Hayder Mohsin