Temperature control of molten pool in laser additive manufacturing based on incremental PID
In order to solve the dimensional accuracy problem caused by the temperature fluctuation of molten pool in laser additive manufacturing,an incremental PID based molten pool temperature control system was designed.The system uses colorimetric pyrometer to measure the temperature of molten pool,and uses incremental PID control algorithm to adjust the laser power in real time to stabilize the temperature of molten pool.The experimental results showed that the control system could stabilize the molten pool temperature and improve the dimensional accuracy of the forming parts compared with the open-loop condition.
additive manufacturingmolten pool temperatureincremental PIDsize control
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维普
