基于矩阵分析法的FDM样件翘曲变形参数优化研究

Parameters optimization study in warp deformation of FDM parts based on matrix analysis method

为了解决熔融沉积3D打印成型过程中常见的翘曲变形问题,对影响成型件翘曲变形的主要因素喷嘴温度、填充速度和分层厚度进行分析并制定了正交试验方案.采用矩阵分析方法,分析了三因素对翘曲变形量的综合影响程度,得到了最优工艺参数组合:喷嘴温度为215℃,填充速度为60mm/s,分层厚度为0.2mm.综合影响的显著程度由高到低依次为填充速度、分层厚度和喷嘴温度.

In order to solve the problem of warping deformation frequently encountered during the 3D printing process of fused deposition modeling,the nozzle temperature,filling speed and layer thickness which are the main factors that influence the warping deformation of the molded parts are analyzed.What′s more,orthogonal test scheme and the matrix analysis method are used to analyze the influence degree of the three factors on the warp deformation,and the optimal combi-nation of process parameters is obtained.The optimal process parameters are as follows：the noz-zle temperature is 215℃,the filling speed is 60mm/s,the layer thickness is 0.2mm,and the significant degree of the comprehensive effect from high to low is filling speed,layer thickness and nozzle temperature.