熔融沉积快速成型技术中扫描填充速度的模拟与实验研究  

Study on the scanning filling velocity of fused deposition molding rapid prototyping technology in simulation and experiment

作　　者：邱晓云[1] 庞学勤[2] 范丽荣[1] 任翀[1] 

机构地区：[1]内蒙古科技大学工程训练中心,内蒙古包头014010 [2]内蒙古科技大学机械工程学院,内蒙古包头014010

出　　处：《制造技术与机床》2016年第10期17-22,共6页Manufacturing Technology & Machine Tool

基　　金：内蒙古自治区教育厅研究项目(NJSZ13132);内蒙古科技大学自然科学类创新基金项目(2014QDL053)

摘　　要：基于熔融沉积快速成型试件在成型后的质量精度问题,主要以扫描填充速度为研究点,通过软件模拟与试件具体的成型实验探究了扫描填充速度大小对试件成型质量的影响。在软件模拟中运用高斯热源模型,攻克了喷头热源处理不恰当和扫描填充速度难以模拟的难题,研究分析后发现不同扫描填充速度对成型试件的力学性能有影响。在具体成型实验中,通过成型出在不同扫描填充速度下所成型的试件后,再依次进行关于试件数据的测量。模拟结果与成型实验最终表明:在熔融沉积成型制造时选择适当的扫描填充速度可以有效减小成型件的应力和成型后的残余应力,并有助于使成型产品获得较高的质量精度。In this paper, we mainly study the influence of scanning filling velocity on the forming quality of speci- men by software simulation and experiment, which based on fused deposition modeling rapid prototyping quality accuracy of test specimens. Through the use of Gaussian model, we solved the heat source and filling speed problems, which is difficult to simulate on the problem. At the same time, we found the effect of different scanning filling velocity on the mechanical properties of the specimens. In the experi- ment, we created a test specimen with different scanning speeds, and then made the measurement of the quality data in turn. The simulation results and the experimental results show that selecting proper scan- ning filling velocity can effectively reduce the stress and residual stress in the forming of specimens, and it is helpful to obtain the high quality precision.

关 键 词：熔融沉积快速成型 质量精度 扫描填充速度 高斯热源模型 成型实验 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]