基于熔融沉积成型3D打印模型表面质量的研究

Study on Surface Quality of 3D Printing Model Based on Fused Deposition Molding

由于FDM技术本身的工作原理,3D打印模型表面不可避免地存在阶梯效应。研究分析了模型表面阶梯效应的形成机理,以具有2种不同截面的三维试验模型为研究对象,验证了系统分层厚度d和模型成型方向夹角α对表面粗糙度系数δ的影响,试验实测数据基本与理论计算数据保持一致。提出了改善模型表面阶梯效应的措施和方法,为提高3D打印模型表面质量提供了有效地解决方案。

Because of the working principle of FDM technology, the staircase effect inevitably exists on the surface of 3D printing model. In the study, the formation mechanism of the surface step effect of the model was analyzed. A three-dimensional experimental model with two different cross-sections was taken as the research object, and the effects of the thickness of the system and the angle of the forming direction of the model on the surface roughness coefficient were verified. The experimental data were basically consistent with the theoretical data. The measures and methods to improve the stepped effect of model surface were put forward, which provided an effective solution to improve the surface quality of 3D printing model.