The Numerical Simulation Of Precision Forging Process Of The Blade With A Damper Platform

A blade with a damper platform, that is, that is,a kind of blades in aviation engine, is of well vibration resistance and high efficiency. Because the shape of the blade is complex and it is difficult to deform the material used to manufacture blades, the blade precision forging technology is not sophisticated and lack systemic and intrinsic cognition, and researches about precision forging of this kind of blade are experimental stage. So it is necessary to study thoroughly the precision forging laws of the blade, and to grasp the influence laws that technical parameters act on precision forging forming. Therefore, the 3D super-plastic deform simulation for the precision forging process of a blade with a damper platform is proceeded, based on the bulk forming software DEFORM3D in de project. The research has great theoretical significances and practical values for understanding precision forging laws of the titanium blade with a damper platform.A brief introduction to the project and the main results are as follows:Based on the Parametric Technology software Pro/Engineering, the rapid modeling of blade with a damper by 3D method is implemented. Based on the torsion angles, an equilibrium angle of 3.3°has been gained, the rough edge has been designed, the pressure center has been determined, the parting line has been designed, the parameters of the rabbet have been designed and the design of dies for blade with a damper in the precision forge has been completed.Based on the bulk forming software DEFORM3D, the implementation means has been studied, by which complicated plastic forming process of the blade with a damper platform has been simulated and analyzed. The key technical problem such as boundary, meshing, iteration convergence control and choice of iteration solver have been disposed properly. These techniques make the 3D coupled thermo-mechanical simulation go on wheels.The precision forging process of the titanium alloy blades with a damper platform has been simulated and analyzed. The super-plastic behavior of forming process has been exploratory researched, and the laws during precision forging of the blade with a damper platform have been obtained. Based on the simulation results, the damage, effective strain field, effective stress field and curves of load-stroke have been obtained, and the process parameters have been optimized value. Forging temperature is 950℃, top die velocity is 0.001 mm /s , friction factor is o.1. Finally, compared with the results of the traditional technical process, rationality and superiority of the super-plastic forming process are verified.