陶瓷3D打印机喷头结构设计与仿真分析

发布时间：2018-03-15 12:06

本文选题：D打印　切入点：陶瓷打印　出处：《天津工业大学学报》2017年04期 　论文类型：期刊论文

【摘要】：为了克服现有陶瓷打印喷头不能连续进料的缺点,根据陶瓷3D打印机高精度和连续上料的要求,对陶瓷3D打印机的喷头挤出系统进行结构设计,提出一种可连续进料、持续打印的陶瓷3D打印机喷头挤出系统,并利用流体力学相关理论知识以及ANSYS Fluent流体仿真软件对挤出过程进行数值模拟.仿真分析结果表明:喷头出口流速约为1.79 mm/s,能够满足较高精度的打印需求;流体内部压强分布合理;关键部件螺杆受力在许用范围内;流体流线场光顺无交叉,在螺杆螺槽处能够顺畅流动.
[Abstract]:In order to overcome the shortcoming that the current ceramic printing nozzle can not feed continuously, according to the requirement of high precision and continuous feeding of ceramic 3D printer, the structure design of the extruding system of ceramic 3D printer is carried out, and a kind of continuous feeding system is proposed. Continuous printing of ceramic 3D printer nozzle extrusion system, The numerical simulation of extrusion process is carried out by using the theoretical knowledge of hydrodynamics and ANSYS Fluent fluid simulation software. The simulation results show that the flow velocity at the nozzle outlet is about 1.79 mm / s, which can meet the high precision printing requirements. The pressure distribution in the fluid is reasonable; the screw force of the key component is within the allowable range; the flow of the fluid streamline field is smooth without cross, and the flow can flow smoothly in the screw screw groove.
【作者单位】：河北工业大学机械工程学院;
【基金】：天津市科技计划项目(14RCHZGX00862;14ZCDZGX00811;15ZXHLGX00210)
【分类号】：TP334.8

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