关键词: 熔融沉积成形, 加热构建平台, 温度场, 精度, 翘曲变形

Abstract: Through the temperature field acquisition and simulation of HBP, the heat transfer principles of HBP were analyzed, and the reasons and methods of temperature exchange between HBP and the outside world were obtained. A new HBP was proposed, which could realize temperature compensation and temperature balance. The simulation models of the surface temperature differences between two kinds of HBP at different ambient temperatures were established, the actual model printing work was completed for two kinds of HBP, and the dimensions of the molded parts were measured and analyzed. Finally, the surface temperature of HBP after optimization is more balance according to the experimental results, which may effectively suppresses the warping deformations of the molded part.

Key words: fused deposition modeling(FDM), heated build platform(HBP), temperature field, accuracy, warping deformation