材料挤出式3D打印制备功能梯度材料过渡距离研究OACSTPCD

With the rapid development of 3D printing technology in recent years,the material extrusion process to fabricate functionally graded materials has become a research hotspot.The transition between materials is the critical issue which affects the final molding quality.At present,only the transition distance between two independent materials has been studied by domestic and foreign scholars,and there were less research on the transition distance between materials with different components.The transition distance between different component materials was investigated by using a dual barrel printer,and through experiments to explore the influence of different feeds on the transition distance,the feed with the smallest transition distance was obtained under the premise of ensuring the print quality.Visual Studio 2019 was utilized as the development platform to propose a new feed strategy to shorten the transition distance,the materials information of the sliced points were judged in the path planning,for materials with increasing components,the feeds of two barrel printer were calculated based on the change values,and a new G-code was generated for printing.Finally,the new G-code was employed for printing experiments,which shorten the material transition distance and achieve the desired material transition curve.