Reseach On The Forming Laws Of1st-stage Stator Blade Of TC11Titanium Alloy In Precision Forging Process

The blade is an important part of aviation engine, its manufacturing technology isone of the important indexes to measure the development of aviation industry. Becauseof the shape of the blade is complex,material deformation difficulties, and formingprocess is affected by a lot of factors.At present research on precision forging of bladehas not yet been system and perfect. So it is necessary to study thoroughly the precisionforging laws of the blade, and to grasp the influence laws that technical parameters acton precision forging forming. In this thesis，through large-scale bulk forming softwareDeform3D，research TC11titanium alloy blade precision forging process. The results ofthe study has a certain practical value on the actual production. The main researchcontents and results include the following:(1) Through the analysis of the blades forming process，the process of bladeprecision forging has been defined，and reverse-engineer the shape of precision forgingblank.(2) Using three-dimensional modelling software Pro/E establish the geometricalmodelling of blades. Design the balance angle, the parting line flash groove parametersand draw the blade precision forging die.By using the finite element analysis softwareDeform3D,a thermo-mechanical coupled numerical simulation of the blade precisionprocess is carried out in this paper.(3) Established model of TC11titanium alloy microstructure, and put it intoDeform3D by the user subroutine, so Deform3D can be analyzed the macro and microstructure of blades.(4) Based on the bulk forming software Deform3D，the blade forming process hasbeen simulated. Though analysised the results of temperature field, effective strain field,effective stress field, mold stroke load curve and so on, the blade precision forging lawshas been obtained.(5) According to the simulation results of different process parameters，the articleresearch the influence that deformation temperature, deformation rate and friction factoron the precision forging process of blade. And the optimal process parameters applied to practical, rationality and practicability is verified by simulation.