摘要
设计了一种具有并联传动机构的3D打印系统,对系统的运动原理进行了分析,以及阐述了斜杆长度、斜杆夹角和水平偏差产生的原因,通过对3D打印系统加工零件精度有关的挤出倍数、喷嘴直径、分层厚度、喷嘴温度与热床温度等工作参数的分析和优化,保证加工零件的精度。采用PLA塑料作为加工材料,完成了具有燃料电池双极板的加工,通过平行流道和蛇形流道燃料电池的工作性能实验,证明了3D打印系统运行的有效性,为后续3D打印系统应用于燃料电池复杂流道的制造奠定了基础。
It designs a kind of 3D printing apparatus with parallel transmission mechanism, the movement principle and the deviation caused by slope rods length, angle and sugrace smoothness hare been analyzed. It analyzes and optimizes parameters like extrusion multiplication, nozzle diameter, layer thickness, nozzle temperature and work plat temperature to assure the manufacturing accuracy. The apparatus adopts plastic PLA as material to fabricate fuel cell bipolar plates. Through the performance experiment of the fuel cell with parallel channel and serpentine channel, the effectiveness of the 3D printing system has been proved, which lay a foundation for the 3D printing system using in the manufacturing of fuel cell with complex channel.
出处
《机械设计与制造》
北大核心
2016年第7期113-115,120,共4页
Machinery Design & Manufacture
基金
上海市科委部分地方院校能力建设项目(13160501000)
关键词
3D打印
并联机构
偏差分析
加工参数
3D Printing
Parallel Mechanism
Deviation Analysis
Fabrication Parameter
