Study on the Surface Roughness Modeling and Process Optimization of Variable Cross-Section Irregular Threads Based on Machine Tool Motor Torque
Variable cross-section irregular threads are applied in sealing connections under extreme working conditions such as high pressure and large impact,and their performance is closely related to the surface roughness of the threads.However,research on thread surface roughness and process optimization based on machine tool motor torque is relatively rare.To this end,the surface rough-ness model of variable cross-section irregular threads was established with machine tool motor torque as the independent variable and cutting force,tool helix cutting trajectory and other factors as intermediate process variables.An optimization method for thread surface roughness was proposed with controlling torque.Finally,a CNC program was written,and thread processing and inspection tests were car-ried out.The results indicate that the thread surface roughness can be significantly reduced by reducing the negative rake angle.The the-oretical calculations are close to the industrial test data,which verifies the effectiveness of the model.
surface roughnessvariable cross-section irregular threadsmotor torqueturning process
万方数据
维普
