熔融沉积3D打印在汽车空调连接管件仿形检具中的应用  

Application of fused deposition modeling 3D printing in copying shape checker of automotive air conditioning connecting pipe

作　　者：王琛 贺琦 李靖瑶 WANG Chen;HE Qi;LI Jingyao(College of Home and Industrial,Nanjing Forestry University,Nanjing 210037,China;Miracle 3D Technology Inc,Suzhou 215100,China)

机构地区：[1]南京林业大学家居与工业设计学院,南京210037 [2]奇迹三维科技有限公司,江苏苏州215100

出　　处：《中国塑料》2025年第2期40-44,共5页China Plastics

基　　金：教育部产学研协同育人项目(240904583024847);江苏省大学生创新训练计划项目(202410298194Y)。

摘　　要：选取某型汽车空调系统中蒸发器和压缩机之间的连接管件为设计对象,应用SolidWorks软件完成了空调连接管件检具的仿形设计。针对仿形检具的结构特点优化切片处理,采用底板(0.1 mm层高)+基座(0.3 mm层高)的可变层高切片方案。实验结果表明,与0.1、0.2、0.3 mm固定层高切片方案相比,0.1 mm+0.3 mm可变层高切片方案的成型精度更高。与0.1、0.2 mm固定层高切片方案相比,0.1 mm+0.3 mm可变层高切片方案的检具重量更小,打印效率更高。选择0.1 mm+0.3 mm可变层高切片方案为优选方案,使用聚乳酸(PLA)丝材和工业级熔融沉积(FDM) 3D打印机进行了空调连接管件仿形检具制造实践,该检具拥有精度高、成本低、效率高、轻量化等特点。In this paper,a connecting pipe between evaporator and compressor in a certain type of automobile air condi-tioning system was selected as a design object,and the SolidWorks software was used to design the air conditioning con-necting pipe copying shape checker.The structural characteristics of the copying shape checker were optimized for slic-ing,and the variable layer height slicing scheme of base plate(0.1 mm layer height)+pedestal(0.3 mm layer height)was adopted.The experimental results indicated that the 0.1 mm+0.3 mm variable layer height slicing scheme had a higher forming accuracy than the 0.1-,0.2-and 0.3-mm-fixed layer height slicing schemes.Compared to the 0.1-,0.2-mm-fixed layer height slicing solutions,0.1 mm+0.3 mm variable layer height slicing solution has less weight for the checker and higher printing efficiency.The 0.1 mm+0.3 mm variable layer height slicing solution was selected as an op-timal solution,and the manufacturing practice of air conditioner connecting pipe copying shape checker was carried out us-ing poly(lactic acid)filament as a raw material on an industrial grade fused deposition modeling 3D printer.The checker exhibited the characteristics of high precision,low cost,high efficiency,and light weight.

关 键 词：熔融沉积 3D打印 汽车空调 连接管件 仿形检具 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]