Study on Adaptive Control Method of Milling Temperature Parameters of TC4 Titanium Alloy
The traditional PID control method for temperature parameters in titanium alloy milling cannot grasp the temperature changes during the milling process in real time,which affects the actual milling temperature control and reduces the milling accuracy of titanium alloy.Taking TC4 titanium alloy as the research object,a TC4 titanium alloy milling tem-perature parameter adaptive control method is designed.A temperature thermal model for TC4 titanium alloy during milling process is established,the schematic diagram of the heat generation area of titanium alloy during milling process is ana-lyzed,the energy generated by different TC4 titanium alloy deformation zones during milling process is calculated,and the variation model between TC4 titanium alloy milling speed and temperature is obtained.Based on enthalpy correction com-posite neural network as an important part of adaptive temperature control,system parameters are assigned to reduce control vibration during the control process.The adaptive control block diagram of milling temperature parameters is obtained,and an adaptive fuzzy approximation adjustment rule comparison table is formulated to complete the research on the adaptive control method of TC4 titanium alloy milling temperature parameters.The performance test results show that compared with traditional control methods,the designed method has better anti-interference ability,faster response speed,smaller tracking error,and stronger robustness.
TC4 titanium alloymilling temperatureadaptive control
万方数据
维普
