摘要
采用正交试验设计,进行了圆弧弦长、成型角度、打印层厚、填充密度及打印速比五个工艺参数对熔融沉积3D打印圆弧制件轮廓精度的测试和结果分析,确定了轮廓精度影响程度由强到弱依次为:打印层厚>圆弧弦长>打印速比>成型角度>填充密度,其中打印层厚影响水平显著。在试验范围内,圆弧弦长8 mm,成型角度60°,打印层厚0.1 mm,填充密度60%,打印速比为1时,可获得最佳轮廓精度。结合数学模型和试验结果分析了单因素各水平对圆弧制件轮廓精度的影响,得到台阶误差、水平误差和垂直误差是产生圆弧制件轮廓误差的主要原因。
The orthogonal experimental design was used to test and analyze the contour accuracy of fused deposition 3 D printed arc parts with five process parameters,namely arc chord length,forming angle,printing layer thickness,filling density and printing speed ratio.It is determined that the influence degree of contour accuracy from strong to weak is as follows:printing layer thickness>arc chord length>printing speed ratio>forming angle>filling density,and the influence level of printing layer thickness is obvious.In the test range,when the arc chord length is 8 mm,the forming angle is 60°,the printing layer thickness is 0.1 mm,the filling density is 60%,and the printing speed ratio is 1,the optimal contour accuracy can be obtained.Combining with the mathematical model and experimental results,the influence of single factor and different levels on the contour accuracy of circular arc parts is analyzed.The step error,horizontal error and vertical error are the main reasons for the contour error of circular arc parts.
作者
赵静
杨丽
魏天路
陈兴强
王超
ZHAO Jing;YANG Li;WEI Tianlu;CHEN Xingqiang;WANG Chao(School of Mechanical and Vehicle Engineering,Bengbu University,Bengbu 233030,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2022年第4期104-107,134,共5页
China Plastics Industry
基金
安徽高校科学研究重点项目(KJ2020A0741)
蚌埠学院校级科研项目(2020ZR02)。
关键词
熔融沉积
3D打印
工艺参数
轮廓精度
Fused Deposition Modeling
Three Dimensional Printing
Process Parameters
Contour Accuracy
