Research On The Forming Laws Of Connecting Shaft With Right Angle And Process Optimized Design

Connecting shaft with right Angle was taken as one of the key components of the transmission system. Its mechanical properties have a direct impact on the whole mechanical system reliability?security and service life. It played the role of the transmission of the fore and the movement.In view of the characteristics of Connecting shaft with right Angle, the paper researched preliminarily the basic law of bending upsetting forming process of connecting shaft with right Angle by numerical simulation using the finite element software Deform-3D on basis of the theory of bending upsetting method and rigid-plastic finite element theory. The law of metal flow and forming force and the equivalent stress, the flow law of velocity with the Y direction were studied. The general law of the bending upsetting forming process of connecting shaft with right Angle was carried out. And forming defects in the process of the bending upsetting forming were pointed out.The 3D finite element models of bending upsetting forming of connecting shaft with right Angle under different bending stroke were constructed by using the finite element software Deform- 3D. The law of the forming results of bending upsetting process of connecting shaft with right Angle under different bending stroke was concluded. The forming results of bending upsetting process of connecting shaft with right Angle under bending stroke for 430.848 mm were good by studying the results of the numerical simulations.The 3D finite element models of bending upsetting process of connecting shaft with right Angle under the different size of blank were built by finite element software Deform-3d. The law of the forming results of bending upsetting process of connecting shaft with right Angle under the different size of blank was obtained. So as to improve the forming defects that may occur. The forming results of bending upsetting process of connecting shaft with right Angle by choosing new blank were good by analyzing the results of the numerical simulations.On this basis, this thesis reproduced with the bending upsetting forming process of connecting shaft with right Angle in the form of numerical simulation by taking the finite element software Deform- 3D and three-dimensional modeling software UG as the research platform. The finite element models of the bending upsetting forming process of connecting shaft with right Angle under the six groups of different rates matching relations and the three groups of different friction factors were respectively constructed by means of single factor rotation method. The simulation results of the finite element models were analyzed by regarding forming force and the forming result as the evaluation index. By analyzing the simulation results, the law of forming was concluded under different rates matching relations. The forming results of bending upsetting process of connecting shaft with right Angle under the third rates matching relation were good by analyzing the results of the numerical simulations. By studying the simulation results, the law of forming was concluded under different friction factors. The forming results of bending upsetting process of connecting shaft with right Angle under the friction factor for 0.3 were good by confirming the results of the numerical simulations.As a result, the forming parameters of the bending upsetting process of connecting shaft with right Angle were optimized. The flattening mould and final forging die of connecting shaft with right Angle were designed. The results could provide theoretical guidance for the bending upsetting forming process design of connecting shaft with right Angle.