Development of A Laboratory-scale Testbed for Heat-absorbing Ink Jetting 3D Printing and Experimental Study on Self-made Ink Printing
The experimental platform was designed and developed according to the principle of heat-absorbing ink jetting 3D printing technology,which mainly includes four subsystems:mechanical motion system,nozzle and ink supply system,powder bed heating system,control and software system.The experimental platform can control the process parameters such as the preheating temperature of the powder bed,the power and speed of the mobile heating lamp,and printing density,and monitor the temperature distribution of powder bed in real-time with the help of infrared thermal imager.On this basis,the experiment of single-layer printing was carried out with commercial water-based black ink and self-made carbon black ink.It was found that the temperature difference between the forming zone and the non-forming zone could reach 46 ℃ when using the self-made carbon black ink under the irradiation power of the mobile heating lamp was 1 500 W and the irradiation time was 25 s,while the temperature difference of the commercial ink was 7.1 ℃.The results show that self-made carbon black ink can significantly enhance the ability of polymer powder to absorb infrared radiation energy.The heat-absorbing ink jetting 3D printing experimental platform can provide an open platform for the development of new materials and new process exploration,and provide a useful reference for the independent development of other types of 3D printing experimental platforms.
万方数据
维普
