In view of the backward technology

In view of the backward technology of spline shaft production, based on the analysis of various processing technology of spline shaft forming at home and abroad in recent years, the method of using heat treatment technology to process spline shaft was put forward. Based on the analysis of the material, shape and size of spline shaft parts, a heat treatment part diagram is designed. According to the hot extrusion part diagram of spline shaft, three different heat treatment molding process schemes of spline shaft are put forward, and the optimum process scheme is determined by comparing the three schemes. The mechanical model of spline shaft formed by heat treatment of hollow billet was established, and the thermal extrusion of spline shaft was calculated and analyzed by principal stress method. The relationship between the extrusion pressure and the parameters in the extrusion process is the relationship between the extrusion pressure and the parameters. To shape. The heat treatment mould was designed, the 3d model of the blank and the mould was established, and the new process scheme was simulated numerically to reveal the forming characteristics of the spline shaft.Due to the limitation of experimental conditions and working time, there are still many shortcomings in this paper. We can also start from the following aspects: in the simulation analysis, it is necessary to conduct an in-depth study on the stress load and wear of heat treatment. This paper only analyzes some macro data in the process of heat treatment and deformation, but the micro data, such as the change of grain growth with various parameters at high temperature, need further analysis and research. The research results of this subject also need to be combined with experimental research to verify the correctness of the simulation by comparing the experimental data with the simulation results.