Fabrication and Testing of Rocket Engine Construction Elements by Addictive Production Approach

Abstract

For the first time, using the technology of selective laser sintering, prototypes of rocket engine compressor blades were manufactured with subsequent analysis of the strength, technological, physical and mechanical characteristics of the product. The physical and mechanical properties of the manufactured blades were investigated, it was found that the short-term strength limit at 20 °C is 1450 MPa, and at 300 °C the ultimate strength is 1300 MPa, thus thermal losses in deformation resistance are no more than 12%, which allows the material to be used in aircraft construction, including for supersonic aircraft

International standard atmosphere - a tool for technological measurement sovereignty in the aerospace industry

“…Viscosity (or internal friction) characterises the property of air to resist the relative movement of its particles, as well as the movement of a solid body in air. The cause of viscosity is the interaction of molecules in their chaotic motion [46][47][48][49][50][51][52][53][54][55][56][57].…”