斜坡3D打印表面质量分析与实验研究

Surface Quality Analysis and Experimental Research of Slope 3D Printing

FDM-3D打印技术是高职院校工业设计、数字化设计与制造等技能大赛赛项的重要技术。本文通过建立表面粗糙度计算模型,研究0.2mm打印层厚下,0°-90°斜坡角3D打印制件的表面质量;通过实验研究表明:随着斜坡角的增大,Ra值近似线性减小,同时和实验测量值对比,预测误差算术平均值等于0.016mm,说明建立的表面粗糙度模型可以指导职业技能大赛中斜坡打印工艺参数的设定。

FDM-3D printing technology is an important technology for technical competitions in vocational colleges such as industrial design,digital design and manufacturing.In this paper,by establishing a surface roughness calculation model,the surface quality of 3D printed parts with a 0°-90°slope angle under the printing layer thickness of 0.2mm is studied.The experimental study shows that with the increase of the slope angle,the Ra value decreases approximately linearly.At the same time,compared with the experimental measurement value,the arithmetic mean of the prediction error is equal to 0.016mm,indicating that the established surface roughness model can guide the setting of the slope printing process parameters in the vocational skills competition.