带锥度阵列圆孔结构的熔融沉积成型制造工艺

Manufacturing Process of Fused Deposition Modeling with Tapered Array Round Hole Structure

为数控加工难度较大的带锥度阵列圆孔结构设计一套熔融沉积成型(FDM)制造工艺。根据不同3D打印设备、线材的性能特点,借助基于云平台的温度检测仪器开展试验,得出:1)PLA^+材料相比ABS^+材料更有利于低温打印成型;2)使用PLA^+材料和ABS^+材料时,3D打印腔温升分别为6.9℃和42.2℃;3)选用封闭式3D打印设备、PLA^+材料、低温(200℃左右)时,工艺性能最佳。合理的工艺设备、工艺材料、工艺温度是3D打印的三大关键技术要点,应在将来的制造工艺设计中加以重视。

A set of Fused Deposition Forming （FDM） manufacturing process is designed for the difficult-to-drill tapered array circular hole structure. According to the performance characteristics of different 3D printing equipment and wire rods, a temperature-testing instrument based on a cloud platform is used to carry out tests. It is concluded that： 1） PLA＋ materials are more conducive to low-temperature printing than ABS＋ materials; 2） When PLA＋ materials and ABS＋ materials are used, the rising temperature of the 3D printing chamber is 6.9°C and 42.2°C, respectively; 3） When selecting the closed 3D printing equipment and PLA＋ material and in the low temperature （around 200°C）, the process is the best. Reasonable process equipment, process materials, and process temperature are the three key technological points of 3D printing and should be emphasized in the design of future manufacturing processes.