HIGH POLYMER MATERIAL ULTRAVIOLET LASER 3D PRINTING METHOD AND DEVICE FOR PRECISE TEMPERATURE CONTROL

摘要

A high polymer material ultraviolet laser 3D printing device for precise temperature control. The device comprises a thermostat (8), a laser head (1), a non-contact type temperature monitoring device (2), a scanning galvanometer (3), a machining platform (5), a powder paving device (6), a machining material (7) and a computer control system (9). A method for 3D printing using the printing device comprises: presetting a machining temperature by the control system (9); during the process of machining, monitoring in real time the temperature rise condition of a material (7) to be machined under the irradiation of laser by the non-contact type temperature monitoring device (2) and feeding back the temperature rise condition to the control system (9); recording the increased value of the temperature within a certain time; and obtaining the laser absorption capability and the temperature rise degree of the material (7) to be machined by the system, so that the laser output power is calculated according to the preset machining temperature value, the laser power is timely adjusted, and the machining temperature is precisely controlled. By means of the device and the method, precise temperature control of high polymer material ultraviolet laser 3D printing forming can be implemented.