Precision Forging Process Analysis and Preform Optimization of Small Compressor Blade of Titanium Alloy

Abstract

Small compressor blades of titanium alloy are important mechanical structural components of advanced aircraft engines. In the present study, the preheating scheme and the forging process of the small compressor blade were modeled by the commercial software DEFORM3D and the forging experiments were conducted on a 10,000KN screw press. The results show that the reasonable preheating temperature for the small blade should be controlled in 960-970°C. The geometric shape and size of the blade preform influenced not only overlap and underfilling defects but also the dimensional precision of small compressor blade forgings. On this basis, the optimized geometric shape of the blade preform was obtained and the compressor blades were well formed by limited forging process experiments.